diff options
| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 17:39:49 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 17:39:49 +0000 |
| commit | a0aa2307322cd47bbf416810ac0292925e03be87 (patch) | |
| tree | 37076262a026c4b48c8a0e84f44ff9187556ca35 /rules | |
| parent | Initial commit. (diff) | |
| download | suricata-a0aa2307322cd47bbf416810ac0292925e03be87.tar.xz suricata-a0aa2307322cd47bbf416810ac0292925e03be87.zip | |
Adding upstream version 1:7.0.3.upstream/1%7.0.3
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'rules')
| -rw-r--r-- | rules/Makefile.am | 25 | ||||
| -rw-r--r-- | rules/Makefile.in | 605 | ||||
| -rw-r--r-- | rules/README.md | 34 | ||||
| -rw-r--r-- | rules/app-layer-events.rules | 18 | ||||
| -rw-r--r-- | rules/decoder-events.rules | 155 | ||||
| -rw-r--r-- | rules/dhcp-events.rules | 7 | ||||
| -rw-r--r-- | rules/dnp3-events.rules | 26 | ||||
| -rw-r--r-- | rules/dns-events.rules | 10 | ||||
| -rw-r--r-- | rules/files.rules | 61 | ||||
| -rw-r--r-- | rules/ftp-events.rules | 6 | ||||
| -rw-r--r-- | rules/http-events.rules | 94 | ||||
| -rw-r--r-- | rules/http2-events.rules | 23 | ||||
| -rw-r--r-- | rules/ipsec-events.rules | 20 | ||||
| -rw-r--r-- | rules/kerberos-events.rules | 8 | ||||
| -rw-r--r-- | rules/modbus-events.rules | 18 | ||||
| -rw-r--r-- | rules/mqtt-events.rules | 17 | ||||
| -rw-r--r-- | rules/nfs-events.rules | 9 | ||||
| -rw-r--r-- | rules/ntp-events.rules | 8 | ||||
| -rw-r--r-- | rules/quic-events.rules | 8 | ||||
| -rw-r--r-- | rules/rfb-events.rules | 10 | ||||
| -rw-r--r-- | rules/smb-events.rules | 46 | ||||
| -rw-r--r-- | rules/smtp-events.rules | 34 | ||||
| -rw-r--r-- | rules/ssh-events.rules | 10 | ||||
| -rw-r--r-- | rules/stream-events.rules | 113 | ||||
| -rw-r--r-- | rules/tls-events.rules | 38 |
25 files changed, 1403 insertions, 0 deletions
diff --git a/rules/Makefile.am b/rules/Makefile.am new file mode 100644 index 0000000..d0ea6ed --- /dev/null +++ b/rules/Makefile.am @@ -0,0 +1,25 @@ +ruledir = $(datadir)/suricata/rules + +dist_rule_DATA = \ +app-layer-events.rules \ +decoder-events.rules \ +dhcp-events.rules \ +dnp3-events.rules \ +dns-events.rules \ +files.rules \ +ftp-events.rules \ +http-events.rules \ +http2-events.rules \ +ipsec-events.rules \ +kerberos-events.rules \ +modbus-events.rules \ +mqtt-events.rules \ +nfs-events.rules \ +ntp-events.rules \ +quic-events.rules \ +rfb-events.rules \ +smb-events.rules \ +smtp-events.rules \ +ssh-events.rules \ +stream-events.rules \ +tls-events.rules diff --git a/rules/Makefile.in b/rules/Makefile.in new file mode 100644 index 0000000..a461b14 --- /dev/null +++ b/rules/Makefile.in @@ -0,0 +1,605 @@ +# Makefile.in generated by automake 1.16.5 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2021 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +VPATH = @srcdir@ +am__is_gnu_make = { \ + if test -z '$(MAKELEVEL)'; then \ + false; \ + elif test -n '$(MAKE_HOST)'; then \ + true; \ + elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \ + true; \ + else \ + false; \ + fi; \ +} +am__make_running_with_option = \ + case $${target_option-} in \ + ?) ;; \ + *) echo "am__make_running_with_option: internal error: invalid" \ + "target option '$${target_option-}' specified" >&2; \ + exit 1;; \ + esac; \ + has_opt=no; \ + sane_makeflags=$$MAKEFLAGS; \ + if $(am__is_gnu_make); then \ + sane_makeflags=$$MFLAGS; \ + else \ + case $$MAKEFLAGS in \ + *\\[\ \ ]*) \ + bs=\\; \ + sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \ + | sed "s/$$bs$$bs[$$bs $$bs ]*//g"`;; \ + esac; \ + fi; \ + skip_next=no; \ + strip_trailopt () \ + { \ + flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \ + }; \ + for flg in $$sane_makeflags; do \ + test $$skip_next = yes && { skip_next=no; continue; }; \ + case $$flg in \ + *=*|--*) continue;; \ + -*I) strip_trailopt 'I'; skip_next=yes;; \ + -*I?*) strip_trailopt 'I';; \ + -*O) strip_trailopt 'O'; skip_next=yes;; \ + -*O?*) strip_trailopt 'O';; \ + -*l) strip_trailopt 'l'; skip_next=yes;; \ + -*l?*) strip_trailopt 'l';; \ + -[dEDm]) skip_next=yes;; \ + -[JT]) skip_next=yes;; \ + esac; \ + case $$flg in \ + *$$target_option*) has_opt=yes; break;; \ + esac; \ + done; \ + test $$has_opt = yes +am__make_dryrun = (target_option=n; $(am__make_running_with_option)) +am__make_keepgoing = (target_option=k; $(am__make_running_with_option)) +pkgdatadir = $(datadir)/@PACKAGE@ +pkgincludedir = $(includedir)/@PACKAGE@ +pkglibdir = $(libdir)/@PACKAGE@ +pkglibexecdir = $(libexecdir)/@PACKAGE@ +am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd +install_sh_DATA = $(install_sh) -c -m 644 +install_sh_PROGRAM = $(install_sh) -c +install_sh_SCRIPT = $(install_sh) -c +INSTALL_HEADER = $(INSTALL_DATA) +transform = $(program_transform_name) +NORMAL_INSTALL = : +PRE_INSTALL = : +POST_INSTALL = : +NORMAL_UNINSTALL = : +PRE_UNINSTALL = : +POST_UNINSTALL = : +build_triplet = @build@ +host_triplet = @host@ +subdir = rules +ACLOCAL_M4 = $(top_srcdir)/aclocal.m4 +am__aclocal_m4_deps = $(top_srcdir)/m4/libtool.m4 \ + $(top_srcdir)/m4/ltoptions.m4 $(top_srcdir)/m4/ltsugar.m4 \ + $(top_srcdir)/m4/ltversion.m4 $(top_srcdir)/m4/lt~obsolete.m4 \ + $(top_srcdir)/configure.ac +am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \ + $(ACLOCAL_M4) +DIST_COMMON = $(srcdir)/Makefile.am $(dist_rule_DATA) \ + $(am__DIST_COMMON) +mkinstalldirs = $(install_sh) -d +CONFIG_HEADER = $(top_builddir)/src/autoconf.h +CONFIG_CLEAN_FILES = +CONFIG_CLEAN_VPATH_FILES = +AM_V_P = $(am__v_P_@AM_V@) +am__v_P_ = $(am__v_P_@AM_DEFAULT_V@) +am__v_P_0 = false +am__v_P_1 = : +AM_V_GEN = $(am__v_GEN_@AM_V@) +am__v_GEN_ = $(am__v_GEN_@AM_DEFAULT_V@) +am__v_GEN_0 = @echo " GEN " $@; +am__v_GEN_1 = +AM_V_at = $(am__v_at_@AM_V@) +am__v_at_ = $(am__v_at_@AM_DEFAULT_V@) +am__v_at_0 = @ +am__v_at_1 = +SOURCES = +DIST_SOURCES = +am__can_run_installinfo = \ + case $$AM_UPDATE_INFO_DIR in \ + n|no|NO) false;; \ + *) (install-info --version) >/dev/null 2>&1;; \ + esac +am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`; +am__vpath_adj = case $$p in \ + $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \ + *) f=$$p;; \ + esac; +am__strip_dir = f=`echo $$p | sed -e 's|^.*/||'`; +am__install_max = 40 +am__nobase_strip_setup = \ + srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*|]/\\\\&/g'` +am__nobase_strip = \ + for p in $$list; do echo "$$p"; done | sed -e "s|$$srcdirstrip/||" +am__nobase_list = $(am__nobase_strip_setup); \ + for p in $$list; do echo "$$p $$p"; done | \ + sed "s| $$srcdirstrip/| |;"' / .*\//!s/ .*/ ./; s,\( .*\)/[^/]*$$,\1,' | \ + $(AWK) 'BEGIN { files["."] = "" } { files[$$2] = files[$$2] " " $$1; \ + if (++n[$$2] == $(am__install_max)) \ + { print $$2, files[$$2]; n[$$2] = 0; files[$$2] = "" } } \ + END { for (dir in files) print dir, files[dir] }' +am__base_list = \ + sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \ + sed '$$!N;$$!N;$$!N;$$!N;s/\n/ /g' +am__uninstall_files_from_dir = { \ + test -z "$$files" \ + || { test ! -d "$$dir" && test ! -f "$$dir" && test ! -r "$$dir"; } \ + || { echo " ( cd '$$dir' && rm -f" $$files ")"; \ + $(am__cd) "$$dir" && rm -f $$files; }; \ + } +am__installdirs = "$(DESTDIR)$(ruledir)" +DATA = $(dist_rule_DATA) +am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP) +am__DIST_COMMON = $(srcdir)/Makefile.in README.md +DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST) +ACLOCAL = @ACLOCAL@ +AMTAR = @AMTAR@ +AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@ +AR = @AR@ +AUTOCONF = @AUTOCONF@ +AUTOHEADER = @AUTOHEADER@ +AUTOMAKE = @AUTOMAKE@ +AWK = @AWK@ +CARGO = @CARGO@ +CARGO_BUILD_TARGET = @CARGO_BUILD_TARGET@ +CARGO_HOME = @CARGO_HOME@ +CBINDGEN = @CBINDGEN@ +CC = @CC@ +CCDEPMODE = @CCDEPMODE@ +CFLAGS = @CFLAGS@ +CLANG = @CLANG@ +CLANG_CFLAGS = @CLANG_CFLAGS@ +CONFIGURE_DATAROOTDIR = @CONFIGURE_DATAROOTDIR@ +CONFIGURE_LOCALSTATEDIR = @CONFIGURE_LOCALSTATEDIR@ +CONFIGURE_PREFIX = @CONFIGURE_PREFIX@ +CONFIGURE_SYSCONDIR = @CONFIGURE_SYSCONDIR@ +CPP = @CPP@ +CPPFLAGS = @CPPFLAGS@ +CSCOPE = @CSCOPE@ +CTAGS = @CTAGS@ +CXX = @CXX@ +CXXCPP = @CXXCPP@ +CXXDEPMODE = @CXXDEPMODE@ +CXXFLAGS = @CXXFLAGS@ +CYGPATH_W = @CYGPATH_W@ +DEFS = @DEFS@ +DEPDIR = @DEPDIR@ +DLLTOOL = @DLLTOOL@ +DSYMUTIL = @DSYMUTIL@ +DUMPBIN = @DUMPBIN@ +ECHO_C = @ECHO_C@ +ECHO_N = @ECHO_N@ +ECHO_T = @ECHO_T@ +EGREP = @EGREP@ +ETAGS = @ETAGS@ +EXEEXT = @EXEEXT@ +FGREP = @FGREP@ +FILECMD = @FILECMD@ +GCC_CFLAGS = @GCC_CFLAGS@ +GREP = @GREP@ +HAVE_COCCINELLE_CONFIG = @HAVE_COCCINELLE_CONFIG@ +HAVE_CURL = @HAVE_CURL@ +HAVE_CYGPATH = @HAVE_CYGPATH@ +HAVE_GETCONF_CMD = @HAVE_GETCONF_CMD@ +HAVE_GIT_CMD = @HAVE_GIT_CMD@ +HAVE_PCAP_CONFIG = @HAVE_PCAP_CONFIG@ +HAVE_PDFLATEX = @HAVE_PDFLATEX@ +HAVE_PKG_CONFIG = @HAVE_PKG_CONFIG@ +HAVE_PYTHON = @HAVE_PYTHON@ +HAVE_WGET = @HAVE_WGET@ +HTP_DIR = @HTP_DIR@ +HTP_LDADD = @HTP_LDADD@ +INSTALL = @INSTALL@ +INSTALL_DATA = @INSTALL_DATA@ +INSTALL_PROGRAM = @INSTALL_PROGRAM@ +INSTALL_SCRIPT = @INSTALL_SCRIPT@ +INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@ +LD = @LD@ +LDFLAGS = @LDFLAGS@ +LIBHTPDEVVERSION_CFLAGS = @LIBHTPDEVVERSION_CFLAGS@ +LIBHTPDEVVERSION_LIBS = @LIBHTPDEVVERSION_LIBS@ +LIBHTPMINVERSION_CFLAGS = @LIBHTPMINVERSION_CFLAGS@ +LIBHTPMINVERSION_LIBS = @LIBHTPMINVERSION_LIBS@ +LIBOBJS = @LIBOBJS@ +LIBS = @LIBS@ +LIBTOOL = @LIBTOOL@ +LIB_FUZZING_ENGINE = @LIB_FUZZING_ENGINE@ +LIPO = @LIPO@ +LLC = @LLC@ +LN_S = @LN_S@ +LTLIBOBJS = @LTLIBOBJS@ +LT_SYS_LIBRARY_PATH = @LT_SYS_LIBRARY_PATH@ +LUAJIT_CFLAGS = @LUAJIT_CFLAGS@ +LUAJIT_LIBS = @LUAJIT_LIBS@ +LUA_CFLAGS = @LUA_CFLAGS@ +LUA_INT8 = @LUA_INT8@ +LUA_LIBS = @LUA_LIBS@ +MAJOR_MINOR = @MAJOR_MINOR@ +MAKEINFO = @MAKEINFO@ +MANIFEST_TOOL = @MANIFEST_TOOL@ +MKDIR_P = @MKDIR_P@ +NM = @NM@ +NMEDIT = @NMEDIT@ +OBJDUMP = @OBJDUMP@ +OBJEXT = @OBJEXT@ +OPTIMIZATION_CFLAGS = @OPTIMIZATION_CFLAGS@ +OTOOL = @OTOOL@ +OTOOL64 = @OTOOL64@ +PACKAGE = @PACKAGE@ +PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@ +PACKAGE_NAME = @PACKAGE_NAME@ +PACKAGE_STRING = @PACKAGE_STRING@ +PACKAGE_TARNAME = @PACKAGE_TARNAME@ +PACKAGE_URL = @PACKAGE_URL@ +PACKAGE_VERSION = @PACKAGE_VERSION@ +PATH_SEPARATOR = @PATH_SEPARATOR@ +PCAP_CFLAGS = @PCAP_CFLAGS@ +PCAP_LIBS = @PCAP_LIBS@ +PKG_CONFIG = @PKG_CONFIG@ +PKG_CONFIG_LIBDIR = @PKG_CONFIG_LIBDIR@ +PKG_CONFIG_PATH = @PKG_CONFIG_PATH@ +POW_LIB = @POW_LIB@ +RANLIB = @RANLIB@ +RUSTC = @RUSTC@ +RUSTUP_HOME_PATH = @RUSTUP_HOME_PATH@ +RUST_FEATURES = @RUST_FEATURES@ +RUST_LDADD = @RUST_LDADD@ +RUST_SURICATA_LIB = @RUST_SURICATA_LIB@ +RUST_SURICATA_LIBDIR = @RUST_SURICATA_LIBDIR@ +RUST_SURICATA_LIBNAME = @RUST_SURICATA_LIBNAME@ +SECCFLAGS = @SECCFLAGS@ +SECLDFLAGS = @SECLDFLAGS@ +SED = @SED@ +SET_MAKE = @SET_MAKE@ +SHELL = @SHELL@ +SPHINX_BUILD = @SPHINX_BUILD@ +STRIP = @STRIP@ +SURICATA_UPDATE_DIR = @SURICATA_UPDATE_DIR@ +VERSION = @VERSION@ +abs_builddir = @abs_builddir@ +abs_srcdir = @abs_srcdir@ +abs_top_builddir = @abs_top_builddir@ +abs_top_srcdir = @abs_top_srcdir@ +ac_ct_AR = @ac_ct_AR@ +ac_ct_CC = @ac_ct_CC@ +ac_ct_CXX = @ac_ct_CXX@ +ac_ct_DUMPBIN = @ac_ct_DUMPBIN@ +am__include = @am__include@ +am__leading_dot = @am__leading_dot@ +am__quote = @am__quote@ +am__tar = @am__tar@ +am__untar = @am__untar@ +bindir = @bindir@ +build = @build@ +build_alias = @build_alias@ +build_cpu = @build_cpu@ +build_os = @build_os@ +build_vendor = @build_vendor@ +builddir = @builddir@ +datadir = @datadir@ +datarootdir = @datarootdir@ +docdir = @docdir@ +dvidir = @dvidir@ +e_datadir = @e_datadir@ +e_datarulesdir = @e_datarulesdir@ +e_defaultruledir = @e_defaultruledir@ +e_enable_evelog = @e_enable_evelog@ +e_localstatedir = @e_localstatedir@ +e_logcertsdir = @e_logcertsdir@ +e_logdir = @e_logdir@ +e_logfilesdir = @e_logfilesdir@ +e_magic_file = @e_magic_file@ +e_magic_file_comment = @e_magic_file_comment@ +e_rundir = @e_rundir@ +e_rustdir = @e_rustdir@ +e_sysconfdir = @e_sysconfdir@ +enable_non_bundled_htp = @enable_non_bundled_htp@ +exec_prefix = @exec_prefix@ +have_rustup = @have_rustup@ +host = @host@ +host_alias = @host_alias@ +host_cpu = @host_cpu@ +host_os = @host_os@ +host_vendor = @host_vendor@ +htmldir = @htmldir@ +includedir = @includedir@ +infodir = @infodir@ +install_sh = @install_sh@ +install_suricata_update_reason = @install_suricata_update_reason@ +libdir = @libdir@ +libexecdir = @libexecdir@ +libhs_CFLAGS = @libhs_CFLAGS@ +libhs_LIBS = @libhs_LIBS@ +libhtp_CFLAGS = @libhtp_CFLAGS@ +libhtp_LIBS = @libhtp_LIBS@ +libnetfilter_queue_CFLAGS = @libnetfilter_queue_CFLAGS@ +libnetfilter_queue_LIBS = @libnetfilter_queue_LIBS@ +localedir = @localedir@ +localstatedir = @localstatedir@ +mandir = @mandir@ +mkdir_p = @mkdir_p@ +oldincludedir = @oldincludedir@ +pdfdir = @pdfdir@ +prefix = @prefix@ +program_transform_name = @program_transform_name@ +psdir = @psdir@ +runstatedir = @runstatedir@ +rust_vendor_comment = @rust_vendor_comment@ +rustup_home = @rustup_home@ +sbindir = @sbindir@ +sharedstatedir = @sharedstatedir@ +srcdir = @srcdir@ +subdirs = @subdirs@ +sysconfdir = @sysconfdir@ +target_alias = @target_alias@ +top_build_prefix = @top_build_prefix@ +top_builddir = @top_builddir@ +top_srcdir = @top_srcdir@ +ruledir = $(datadir)/suricata/rules +dist_rule_DATA = \ +app-layer-events.rules \ +decoder-events.rules \ +dhcp-events.rules \ +dnp3-events.rules \ +dns-events.rules \ +files.rules \ +ftp-events.rules \ +http-events.rules \ +http2-events.rules \ +ipsec-events.rules \ +kerberos-events.rules \ +modbus-events.rules \ +mqtt-events.rules \ +nfs-events.rules \ +ntp-events.rules \ +quic-events.rules \ +rfb-events.rules \ +smb-events.rules \ +smtp-events.rules \ +ssh-events.rules \ +stream-events.rules \ +tls-events.rules + +all: all-am + +.SUFFIXES: +$(srcdir)/Makefile.in: $(srcdir)/Makefile.am $(am__configure_deps) + @for dep in $?; do \ + case '$(am__configure_deps)' in \ + *$$dep*) \ + ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \ + && { if test -f $@; then exit 0; else break; fi; }; \ + exit 1;; \ + esac; \ + done; \ + echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu rules/Makefile'; \ + $(am__cd) $(top_srcdir) && \ + $(AUTOMAKE) --gnu rules/Makefile +Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status + @case '$?' in \ + *config.status*) \ + cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \ + *) \ + echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles)'; \ + cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles);; \ + esac; + +$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES) + cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh + +$(top_srcdir)/configure: $(am__configure_deps) + cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh +$(ACLOCAL_M4): $(am__aclocal_m4_deps) + cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh +$(am__aclocal_m4_deps): + +mostlyclean-libtool: + -rm -f *.lo + +clean-libtool: + -rm -rf .libs _libs +install-dist_ruleDATA: $(dist_rule_DATA) + @$(NORMAL_INSTALL) + @list='$(dist_rule_DATA)'; test -n "$(ruledir)" || list=; \ + if test -n "$$list"; then \ + echo " $(MKDIR_P) '$(DESTDIR)$(ruledir)'"; \ + $(MKDIR_P) "$(DESTDIR)$(ruledir)" || exit 1; \ + fi; \ + for p in $$list; do \ + if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \ + echo "$$d$$p"; \ + done | $(am__base_list) | \ + while read files; do \ + echo " $(INSTALL_DATA) $$files '$(DESTDIR)$(ruledir)'"; \ + $(INSTALL_DATA) $$files "$(DESTDIR)$(ruledir)" || exit $$?; \ + done + +uninstall-dist_ruleDATA: + @$(NORMAL_UNINSTALL) + @list='$(dist_rule_DATA)'; test -n "$(ruledir)" || list=; \ + files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \ + dir='$(DESTDIR)$(ruledir)'; $(am__uninstall_files_from_dir) +tags TAGS: + +ctags CTAGS: + +cscope cscopelist: + +distdir: $(BUILT_SOURCES) + $(MAKE) $(AM_MAKEFLAGS) distdir-am + +distdir-am: $(DISTFILES) + @srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \ + topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \ + list='$(DISTFILES)'; \ + dist_files=`for file in $$list; do echo $$file; done | \ + sed -e "s|^$$srcdirstrip/||;t" \ + -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \ + case $$dist_files in \ + */*) $(MKDIR_P) `echo "$$dist_files" | \ + sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \ + sort -u` ;; \ + esac; \ + for file in $$dist_files; do \ + if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \ + if test -d $$d/$$file; then \ + dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \ + if test -d "$(distdir)/$$file"; then \ + find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \ + fi; \ + if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \ + cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \ + find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \ + fi; \ + cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \ + else \ + test -f "$(distdir)/$$file" \ + || cp -p $$d/$$file "$(distdir)/$$file" \ + || exit 1; \ + fi; \ + done +check-am: all-am +check: check-am +all-am: Makefile $(DATA) +installdirs: + for dir in "$(DESTDIR)$(ruledir)"; do \ + test -z "$$dir" || $(MKDIR_P) "$$dir"; \ + done +install: install-am +install-exec: install-exec-am +install-data: install-data-am +uninstall: uninstall-am + +install-am: all-am + @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am + +installcheck: installcheck-am +install-strip: + if test -z '$(STRIP)'; then \ + $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \ + install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \ + install; \ + else \ + $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \ + install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \ + "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \ + fi +mostlyclean-generic: + +clean-generic: + +distclean-generic: + -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES) + -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES) + +maintainer-clean-generic: + @echo "This command is intended for maintainers to use" + @echo "it deletes files that may require special tools to rebuild." +clean: clean-am + +clean-am: clean-generic clean-libtool mostlyclean-am + +distclean: distclean-am + -rm -f Makefile +distclean-am: clean-am distclean-generic + +dvi: dvi-am + +dvi-am: + +html: html-am + +html-am: + +info: info-am + +info-am: + +install-data-am: install-dist_ruleDATA + +install-dvi: install-dvi-am + +install-dvi-am: + +install-exec-am: + +install-html: install-html-am + +install-html-am: + +install-info: install-info-am + +install-info-am: + +install-man: + +install-pdf: install-pdf-am + +install-pdf-am: + +install-ps: install-ps-am + +install-ps-am: + +installcheck-am: + +maintainer-clean: maintainer-clean-am + -rm -f Makefile +maintainer-clean-am: distclean-am maintainer-clean-generic + +mostlyclean: mostlyclean-am + +mostlyclean-am: mostlyclean-generic mostlyclean-libtool + +pdf: pdf-am + +pdf-am: + +ps: ps-am + +ps-am: + +uninstall-am: uninstall-dist_ruleDATA + +.MAKE: install-am install-strip + +.PHONY: all all-am check check-am clean clean-generic clean-libtool \ + cscopelist-am ctags-am distclean distclean-generic \ + distclean-libtool distdir dvi dvi-am html html-am info info-am \ + install install-am install-data install-data-am \ + install-dist_ruleDATA install-dvi install-dvi-am install-exec \ + install-exec-am install-html install-html-am install-info \ + install-info-am install-man install-pdf install-pdf-am \ + install-ps install-ps-am install-strip installcheck \ + installcheck-am installdirs maintainer-clean \ + maintainer-clean-generic mostlyclean mostlyclean-generic \ + mostlyclean-libtool pdf pdf-am ps ps-am tags-am uninstall \ + uninstall-am uninstall-dist_ruleDATA + +.PRECIOUS: Makefile + + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/rules/README.md b/rules/README.md new file mode 100644 index 0000000..a2c47f1 --- /dev/null +++ b/rules/README.md @@ -0,0 +1,34 @@ +# Suricata Reserved SID Allocations + +Unless otherwise noted, each component or protocol is allocated 1000 +signature IDs. + +## Components + +| Component | Start | End | +| ----------------- | ------- | ------- | +| Decoder | 2200000 | 2200999 | +| Stream | 2210000 | 2210999 | +| Generic App-Layer | 2260000 | 2260999 | + +## App-Layer Protocols + +| Protocol | Start | End | +| -------- | ------- | ------- | +| SMTP | 2220000 | 2220999 | +| HTTP | 2221000 | 2221999 | +| NTP | 2222000 | 2222999 | +| NFS | 2223000 | 2223999 | +| IPsec | 2224000 | 2224999 | +| SMB | 2225000 | 2225999 | +| Kerberos | 2226000 | 2226999 | +| DHCP | 2227000 | 2227999 | +| SSH | 2228000 | 2228999 | +| MQTT | 2229000 | 2229999 | +| TLS | 2230000 | 2230999 | +| QUIC | 2231000 | 2231999 | +| FTP | 2232000 | 2232999 | +| DNS | 2240000 | 2240999 | +| MODBUS | 2250000 | 2250999 | +| DNP3 | 2270000 | 2270999 | +| HTTP2 | 2290000 | 2290999 | diff --git a/rules/app-layer-events.rules b/rules/app-layer-events.rules new file mode 100644 index 0000000..6d2d470 --- /dev/null +++ b/rules/app-layer-events.rules @@ -0,0 +1,18 @@ +# App layer event rules +# +# SID's fall in the 2260000+ range. See http://doc.emergingthreats.net/bin/view/Main/SidAllocation +# +# These sigs fire at most once per connection. +# +# A flowint applayer.anomaly.count is incremented for each match. By default it will be 0. +# +alert ip any any -> any any (msg:"SURICATA Applayer Mismatch protocol both directions"; flow:established; app-layer-event:applayer_mismatch_protocol_both_directions; flowint:applayer.anomaly.count,+,1; classtype:protocol-command-decode; sid:2260000; rev:1;) +alert ip any any -> any any (msg:"SURICATA Applayer Wrong direction first Data"; flow:established; app-layer-event:applayer_wrong_direction_first_data; flowint:applayer.anomaly.count,+,1; classtype:protocol-command-decode; sid:2260001; rev:1;) +alert ip any any -> any any (msg:"SURICATA Applayer Detect protocol only one direction"; flow:established; app-layer-event:applayer_detect_protocol_only_one_direction; flowint:applayer.anomaly.count,+,1; classtype:protocol-command-decode; sid:2260002; rev:1;) +alert ip any any -> any any (msg:"SURICATA Applayer Protocol detection skipped"; flow:established; app-layer-event:applayer_proto_detection_skipped; flowint:applayer.anomaly.count,+,1; classtype:protocol-command-decode; sid:2260003; rev:1;) +# alert if STARTTLS was not followed by actual SSL/TLS +alert tcp any any -> any any (msg:"SURICATA Applayer No TLS after STARTTLS"; flow:established; app-layer-event:applayer_no_tls_after_starttls; flowint:applayer.anomaly.count,+,1; classtype:protocol-command-decode; sid:2260004; rev:2;) +# unexpected protocol in protocol upgrade +alert tcp any any -> any any (msg:"SURICATA Applayer Unexpected protocol"; flow:established; app-layer-event:applayer_unexpected_protocol; flowint:applayer.anomaly.count,+,1; classtype:protocol-command-decode; sid:2260005; rev:1;) + +#next sid is 2260006 diff --git a/rules/decoder-events.rules b/rules/decoder-events.rules new file mode 100644 index 0000000..092eebd --- /dev/null +++ b/rules/decoder-events.rules @@ -0,0 +1,155 @@ +# Decoder event signatures for Suricata. +# SID's fall in the 2200000+ range. See http://doc.emergingthreats.net/bin/view/Main/SidAllocation +alert pkthdr any any -> any any (msg:"SURICATA IPv4 packet too small"; decode-event:ipv4.pkt_too_small; classtype:protocol-command-decode; sid:2200000; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA IPv4 header size too small"; decode-event:ipv4.hlen_too_small; classtype:protocol-command-decode; sid:2200001; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA IPv4 total length smaller than header size"; decode-event:ipv4.iplen_smaller_than_hlen; classtype:protocol-command-decode; sid:2200002; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA IPv4 truncated packet"; decode-event:ipv4.trunc_pkt; classtype:protocol-command-decode; sid:2200003; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA IPv4 invalid option"; decode-event:ipv4.opt_invalid; classtype:protocol-command-decode; sid:2200004; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA IPv4 invalid option length"; decode-event:ipv4.opt_invalid_len; classtype:protocol-command-decode; sid:2200005; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA IPv4 malformed option"; decode-event:ipv4.opt_malformed; classtype:protocol-command-decode; sid:2200006; rev:2;) +#alert pkthdr any any -> any any (msg:"SURICATA IPv4 padding required "; decode-event:ipv4.opt_pad_required; classtype:protocol-command-decode; sid:2200007; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA IPv4 with ICMPv6 header"; decode-event:ipv4.icmpv6; classtype:protocol-command-decode; sid:2200092; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA IPv4 option end of list required"; decode-event:ipv4.opt_eol_required; classtype:protocol-command-decode; sid:2200008; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA IPv4 duplicated IP option"; decode-event:ipv4.opt_duplicate; classtype:protocol-command-decode; sid:2200009; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA IPv4 unknown IP option"; decode-event:ipv4.opt_unknown; classtype:protocol-command-decode; sid:2200010; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA IPv4 wrong IP version"; decode-event:ipv4.wrong_ip_version; classtype:protocol-command-decode; sid:2200011; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA IPv6 packet too small"; decode-event:ipv6.pkt_too_small; classtype:protocol-command-decode; sid:2200012; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA IPv6 truncated packet"; decode-event:ipv6.trunc_pkt; classtype:protocol-command-decode; sid:2200013; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA IPv6 truncated extension header"; decode-event:ipv6.trunc_exthdr; classtype:protocol-command-decode; sid:2200014; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA IPv6 duplicated Fragment extension header"; decode-event:ipv6.exthdr_dupl_fh; classtype:protocol-command-decode; sid:2200015; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA IPv6 useless Fragment extension header"; decode-event:ipv6.exthdr_useless_fh; classtype:protocol-command-decode; sid:2200080; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA IPv6 duplicated Routing extension header"; decode-event:ipv6.exthdr_dupl_rh; classtype:protocol-command-decode; sid:2200016; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA IPv6 duplicated Hop-By-Hop Options extension header"; decode-event:ipv6.exthdr_dupl_hh; classtype:protocol-command-decode; sid:2200017; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA IPv6 duplicated Destination Options extension header"; decode-event:ipv6.exthdr_dupl_dh; classtype:protocol-command-decode; sid:2200018; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA IPv6 duplicated Authentication Header extension header"; decode-event:ipv6.exthdr_dupl_ah; classtype:protocol-command-decode; sid:2200019; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA IPv6 duplicate ESP extension header"; decode-event:ipv6.exthdr_dupl_eh; classtype:protocol-command-decode; sid:2200020; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA IPv6 invalid option length in header"; decode-event:ipv6.exthdr_invalid_optlen; classtype:protocol-command-decode; sid:2200021; rev:3;) +alert pkthdr any any -> any any (msg:"SURICATA IPv6 wrong IP version"; decode-event:ipv6.wrong_ip_version; classtype:protocol-command-decode; sid:2200022; rev:2;) +# RFC 4302 states the reserved field should be 0. +alert pkthdr any any -> any any (msg:"SURICATA IPv6 AH reserved field not 0"; decode-event:ipv6.exthdr_ah_res_not_null; classtype:protocol-command-decode; sid:2200081; rev:2;) +# HOP option that we don't understand +alert pkthdr any any -> any any (msg:"SURICATA IPv6 HOPOPTS unknown option"; decode-event:ipv6.hopopts_unknown_opt; classtype:protocol-command-decode; sid:2200086; rev:2;) +# HOP header with only padding, covert channel? +alert pkthdr any any -> any any (msg:"SURICATA IPv6 HOPOPTS only padding"; decode-event:ipv6.hopopts_only_padding; classtype:protocol-command-decode; sid:2200087; rev:2;) +# DST option that we don't understand +alert pkthdr any any -> any any (msg:"SURICATA IPv6 DSTOPTS unknown option"; decode-event:ipv6.dstopts_unknown_opt; classtype:protocol-command-decode; sid:2200088; rev:2;) +# DST header with only padding, covert channel? +alert pkthdr any any -> any any (msg:"SURICATA IPv6 DSTOPTS only padding"; decode-event:ipv6.dstopts_only_padding; classtype:protocol-command-decode; sid:2200089; rev:2;) +# Type 0 Routing header deprecated per RFC 5095 +alert ipv6 any any -> any any (msg:"SURICATA RH Type 0"; decode-event:ipv6.rh_type_0; classtype:protocol-command-decode; sid:2200093; rev:2;) +# padN option with zero length field. This is not uncommon, so disabled by default. +#alert ipv6 any any -> any any (msg:"SURICATA zero length padN option"; decode-event:ipv6.zero_len_padn; classtype:protocol-command-decode; sid:2200094; rev:2;) +# Frag Header 'length' field is reserved and should be 0 +alert ipv6 any any -> any any (msg:"SURICATA reserved field in Frag Header not zero"; decode-event:ipv6.fh_non_zero_reserved_field; classtype:protocol-command-decode; sid:2200095; rev:2;) +# Data after the 'none' header (59) is suspicious. +alert ipv6 any any -> any any (msg:"SURICATA data after none (59) header"; decode-event:ipv6.data_after_none_header; classtype:protocol-command-decode; sid:2200096; rev:2;) +# unknown/unsupported next header / protocol. Valid protocols are not yet supported, so disabling by default +#alert ipv6 any any -> any any (msg:"SURICATA unknown next header / protocol"; decode-event:ipv6.unknown_next_header; classtype:protocol-command-decode; sid:2200097; rev:2;) +alert ipv6 any any -> any any (msg:"SURICATA IPv6 with ICMPv4 header"; decode-event:ipv6.icmpv4; classtype:protocol-command-decode; sid:2200090; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA ICMPv4 packet too small"; decode-event:icmpv4.pkt_too_small; classtype:protocol-command-decode; sid:2200023; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA ICMPv4 unknown type"; decode-event:icmpv4.unknown_type; classtype:protocol-command-decode; sid:2200024; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA ICMPv4 unknown code"; decode-event:icmpv4.unknown_code; classtype:protocol-command-decode; sid:2200025; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA ICMPv4 truncated packet"; decode-event:icmpv4.ipv4_trunc_pkt; classtype:protocol-command-decode; sid:2200026; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA ICMPv4 unknown version"; decode-event:icmpv4.ipv4_unknown_ver; classtype:protocol-command-decode; sid:2200027; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA ICMPv6 packet too small"; decode-event:icmpv6.pkt_too_small; classtype:protocol-command-decode; sid:2200028; rev:2;) +# uncomment the following signature if you plan to update suricata code to support more ICMPv6 type +#alert pkthdr any any -> any any (msg:"SURICATA ICMPv6 unknown type"; decode-event:icmpv6.unknown_type; classtype:protocol-command-decode; sid:2200029; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA ICMPv6 unknown code"; decode-event:icmpv6.unknown_code; classtype:protocol-command-decode; sid:2200030; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA ICMPv6 truncated packet"; decode-event:icmpv6.ipv6_trunc_pkt; classtype:protocol-command-decode; sid:2200031; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA ICMPv6 unknown version"; decode-event:icmpv6.ipv6_unknown_version; classtype:protocol-command-decode; sid:2200032; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA ICMPv6 MLD hop limit not 1"; decode-event:icmpv6.mld_message_with_invalid_hl; classtype:protocol-command-decode; sid:2200102; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA ICMPv6 unassigned type"; decode-event:icmpv6.unassigned_type; classtype:protocol-command-decode; sid:2200108; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA ICMPv6 private experimentation type"; decode-event:icmpv6.experimentation_type; classtype:protocol-command-decode; sid:2200109; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA TCP packet too small"; decode-event:tcp.pkt_too_small; classtype:protocol-command-decode; sid:2200033; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA TCP header length too small"; decode-event:tcp.hlen_too_small; classtype:protocol-command-decode; sid:2200034; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA TCP invalid option length"; decode-event:tcp.invalid_optlen; classtype:protocol-command-decode; sid:2200035; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA TCP option invalid length"; decode-event:tcp.opt_invalid_len; classtype:protocol-command-decode; sid:2200036; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA TCP duplicated option"; decode-event:tcp.opt_duplicate; classtype:protocol-command-decode; sid:2200037; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA UDP packet too small"; decode-event:udp.pkt_too_small; classtype:protocol-command-decode; sid:2200038; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA UDP header length too small"; decode-event:udp.hlen_too_small; classtype:protocol-command-decode; sid:2200039; rev:2;) +# 2200040 "udp.hlen_invalid" has been retired. +alert pkthdr any any -> any any (msg:"SURICATA UDP invalid length field in the header"; decode-event:udp.len_invalid; classtype:protocol-command-decode; sid:2200120; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA SLL packet too small"; decode-event:sll.pkt_too_small; classtype:protocol-command-decode; sid:2200041; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA Ethernet packet too small"; decode-event:ethernet.pkt_too_small; classtype:protocol-command-decode; sid:2200042; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA PPP packet too small"; decode-event:ppp.pkt_too_small; classtype:protocol-command-decode; sid:2200043; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA PPP VJU packet too small"; decode-event:ppp.vju_pkt_too_small; classtype:protocol-command-decode; sid:2200044; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA PPP IPv4 packet too small"; decode-event:ppp.ip4_pkt_too_small; classtype:protocol-command-decode; sid:2200045; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA PPP IPv6 too small"; decode-event:ppp.ip6_pkt_too_small; classtype:protocol-command-decode; sid:2200046; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA PPP wrong type"; decode-event:ppp.wrong_type; classtype:protocol-command-decode; sid:2200047; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA PPP unsupported protocol"; decode-event:ppp.unsup_proto; classtype:protocol-command-decode; sid:2200048; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA PPPOE packet too small"; decode-event:pppoe.pkt_too_small; classtype:protocol-command-decode; sid:2200049; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA PPPOE wrong code"; decode-event:pppoe.wrong_code; classtype:protocol-command-decode; sid:2200050; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA PPPOE malformed tags"; decode-event:pppoe.malformed_tags; classtype:protocol-command-decode; sid:2200051; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA GRE packet too small"; decode-event:gre.pkt_too_small; classtype:protocol-command-decode; sid:2200052; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA GRE wrong version"; decode-event:gre.wrong_version; classtype:protocol-command-decode; sid:2200053; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA GRE v0 recursion control"; decode-event:gre.version0_recur; classtype:protocol-command-decode; sid:2200054; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA GRE v0 flags"; decode-event:gre.version0_flags; classtype:protocol-command-decode; sid:2200055; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA GRE v0 header too big"; decode-event:gre.version0_hdr_too_big; classtype:protocol-command-decode; sid:2200056; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA GRE v1 checksum present"; decode-event:gre.version1_chksum; classtype:protocol-command-decode; sid:2200057; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA GRE v1 routing present"; decode-event:gre.version1_route; classtype:protocol-command-decode; sid:2200058; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA GRE v1 strict source route"; decode-event:gre.version1_ssr; classtype:protocol-command-decode; sid:2200059; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA GRE v1 recursion control"; decode-event:gre.version1_recur; classtype:protocol-command-decode; sid:2200060; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA GRE v1 flags"; decode-event:gre.version1_flags; classtype:protocol-command-decode; sid:2200061; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA GRE v1 no key present"; decode-event:gre.version1_no_key; classtype:protocol-command-decode; sid:2200062; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA GRE v1 wrong protocol"; decode-event:gre.version1_wrong_protocol; classtype:protocol-command-decode; sid:2200063; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA GRE v1 malformed Source Route Entry header"; decode-event:gre.version1_malformed_sre_hdr; classtype:protocol-command-decode; sid:2200064; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA GRE v1 header too big"; decode-event:gre.version1_hdr_too_big; classtype:protocol-command-decode; sid:2200065; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA VLAN header too small "; decode-event:vlan.header_too_small; classtype:protocol-command-decode; sid:2200066; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA VLAN unknown type"; decode-event:vlan.unknown_type; classtype:protocol-command-decode; sid:2200067; rev:2;) +# more than 2 vlan layers in the packet +alert pkthdr any any -> any any (msg:"SURICATA VLAN too many layers"; decode-event:vlan.too_many_layers; classtype:protocol-command-decode; sid:2200091; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA VNTAG header too small"; decode-event:vntag.header_too_small; classtype:protocol-command-decode; sid:2200117; rev:1;) +alert pkthdr any any -> any any (msg:"SURICATA VNTAG unknown type"; decode-event:vntag.unknown_type; classtype:protocol-command-decode; sid:2200118; rev:1;) +alert pkthdr any any -> any any (msg:"SURICATA IEEE802.1AH header too small"; decode-event:ieee8021ah.header_too_small; classtype:protocol-command-decode; sid:2200112; rev:1;) + +alert pkthdr any any -> any any (msg:"SURICATA IP raw invalid IP version "; decode-event:ipraw.invalid_ip_version; classtype:protocol-command-decode; sid:2200068; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA FRAG IPv4 Packet size too large"; decode-event:ipv4.frag_pkt_too_large; classtype:protocol-command-decode; sid:2200069; rev:3;) +alert pkthdr any any -> any any (msg:"SURICATA FRAG IPv4 Fragmentation overlap"; decode-event:ipv4.frag_overlap; classtype:protocol-command-decode; sid:2200070; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA FRAG IPv6 Packet size too large"; decode-event:ipv6.frag_pkt_too_large; classtype:protocol-command-decode; sid:2200071; rev:3;) +alert pkthdr any any -> any any (msg:"SURICATA FRAG IPv6 Fragmentation overlap"; decode-event:ipv6.frag_overlap; classtype:protocol-command-decode; sid:2200072; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA FRAG IPv6 Fragment invalid length"; decode-event:ipv6.frag_invalid_length; classtype:protocol-command-decode; sid:2200119; rev:1;) + +# checksum rules +alert ip any any -> any any (msg:"SURICATA IPv4 invalid checksum"; ipv4-csum:invalid; classtype:protocol-command-decode; sid:2200073; rev:2;) +alert tcp any any -> any any (msg:"SURICATA TCPv4 invalid checksum"; tcpv4-csum:invalid; classtype:protocol-command-decode; sid:2200074; rev:2;) +alert udp any any -> any any (msg:"SURICATA UDPv4 invalid checksum"; udpv4-csum:invalid; classtype:protocol-command-decode; sid:2200075; rev:2;) +alert icmp any any -> any any (msg:"SURICATA ICMPv4 invalid checksum"; icmpv4-csum:invalid; classtype:protocol-command-decode; sid:2200076; rev:2;) +alert tcp any any -> any any (msg:"SURICATA TCPv6 invalid checksum"; tcpv6-csum:invalid; classtype:protocol-command-decode; sid:2200077; rev:2;) +alert udp any any -> any any (msg:"SURICATA UDPv6 invalid checksum"; udpv6-csum:invalid; classtype:protocol-command-decode; sid:2200078; rev:2;) +alert icmp any any -> any any (msg:"SURICATA ICMPv6 invalid checksum"; icmpv6-csum:invalid; classtype:protocol-command-decode; sid:2200079; rev:2;) +# IPv4 in IPv6 rules +alert pkthdr any any -> any any (msg:"SURICATA IPv4-in-IPv6 packet too short"; decode-event:ipv6.ipv4_in_ipv6_too_small; classtype:protocol-command-decode; sid:2200082; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA IPv4-in-IPv6 invalid protocol"; decode-event:ipv6.ipv4_in_ipv6_wrong_version; classtype:protocol-command-decode; sid:2200083; rev:2;) +# IPv6 in IPv6 rules +alert pkthdr any any -> any any (msg:"SURICATA IPv6-in-IPv6 packet too short"; decode-event:ipv6.ipv6_in_ipv6_too_small; classtype:protocol-command-decode; sid:2200084; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA IPv6-in-IPv6 invalid protocol"; decode-event:ipv6.ipv6_in_ipv6_wrong_version; classtype:protocol-command-decode; sid:2200085; rev:2;) + +# MPLS rules +alert pkthdr any any -> any any (msg:"SURICATA MPLS header too small"; decode-event:mpls.header_too_small; classtype:protocol-command-decode; sid:2200111; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA MPLS packet too small"; decode-event:mpls.pkt_too_small; classtype:protocol-command-decode; sid:2200114; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA MPLS bad router alert label"; decode-event:mpls.bad_label_router_alert; classtype:protocol-command-decode; sid:2200098; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA MPLS bad implicit null label"; decode-event:mpls.bad_label_implicit_null; classtype:protocol-command-decode; sid:2200099; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA MPLS reserved label"; decode-event:mpls.bad_label_reserved; classtype:protocol-command-decode; sid:2200100; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA MPLS unknown payload type"; decode-event:mpls.unknown_payload_type; classtype:protocol-command-decode; sid:2200101; rev:2;) + +# linktype null +alert pkthdr any any -> any any (msg:"SURICATA NULL pkt too small"; decode-event:ltnull.pkt_too_small; classtype:protocol-command-decode; sid:2200103; rev:2;) +# packet has type not supported by Suricata's decoders +alert pkthdr any any -> any any (msg:"SURICATA NULL unsupported type"; decode-event:ltnull.unsupported_type; classtype:protocol-command-decode; sid:2200104; rev:2;) + +# ERSPAN +alert pkthdr any any -> any any (msg:"SURICATA ERSPAN pkt too small"; decode-event:erspan.header_too_small; classtype:protocol-command-decode; sid:2200105; rev:2;) +# packet has type not supported by Suricata's decoders +alert pkthdr any any -> any any (msg:"SURICATA ERSPAN unsupported version"; decode-event:erspan.unsupported_version; classtype:protocol-command-decode; sid:2200106; rev:2;) +alert pkthdr any any -> any any (msg:"SURICATA ERSPAN too many vlan layers"; decode-event:erspan.too_many_vlan_layers; classtype:protocol-command-decode; sid:2200107; rev:2;) + +# Cisco Fabric Path/DCE +alert pkthdr any any -> any any (msg:"SURICATA DCE packet too small"; decode-event:dce.pkt_too_small; classtype:protocol-command-decode; sid:2200110; rev:2;) + +# Cisco HDLC +alert pkthdr any any -> any any (msg:"SURICATA CHDLC packet too small"; decode-event:chdlc.pkt_too_small; classtype:protocol-command-decode; sid:2200115; rev:1;) + +alert pkthdr any any -> any any (msg:"SURICATA packet with too many layers"; decode-event:too_many_layers; classtype:protocol-command-decode; sid:2200116; rev:1;) + +# next sid is 2200121 + diff --git a/rules/dhcp-events.rules b/rules/dhcp-events.rules new file mode 100644 index 0000000..c99d981 --- /dev/null +++ b/rules/dhcp-events.rules @@ -0,0 +1,7 @@ +# DHCP app-layer event rules. See +# +# https://redmine.openinfosecfoundation.org/projects/suricata/wiki/AppLayer +# for SID allocation. + +alert dhcp any any -> any any (msg:"SURICATA DHCP malformed options"; app-layer-event:dhcp.malformed_options; classtype:protocol-command-decode; sid:2227000; rev:1;) +alert dhcp any any -> any any (msg:"SURICATA DHCP truncated options"; app-layer-event:dhcp.truncated_options; classtype:protocol-command-decode; sid:2227001; rev:1;) diff --git a/rules/dnp3-events.rules b/rules/dnp3-events.rules new file mode 100644 index 0000000..e4890f8 --- /dev/null +++ b/rules/dnp3-events.rules @@ -0,0 +1,26 @@ +# DNP3 application decoder event rules. +# +# This SIDs fall in the 2270000+ range. See: +# http://doc.emergingthreats.net/bin/view/Main/SidAllocation + +# Flooded. +alert dnp3 any any -> any any (msg:"SURICATA DNP3 Request flood detected"; \ + app-layer-event:dnp3.flooded; classtype:protocol-command-decode; sid:2270000; rev:2;) + +# Length to small for PDU type. For example, link specifies the type +# as user data, but the length field is not large enough for user +# data. +alert dnp3 any any -> any any (msg:"SURICATA DNP3 Length too small"; \ + app-layer-event:dnp3.len_too_small; classtype:protocol-command-decode; sid:2270001; rev:3;) + +# Bad link layer CRC. +alert dnp3 any any -> any any (msg:"SURICATA DNP3 Bad link CRC"; \ + app-layer-event:dnp3.bad_link_crc; classtype:protocol-command-decode; sid:2270002; rev:2;) + +# Bad transport layer CRC. +alert dnp3 any any -> any any (msg:"SURICATA DNP3 Bad transport CRC"; \ + app-layer-event:dnp3.bad_transport_crc; classtype:protocol-command-decode; sid:2270003; rev:2;) + +# Unknown object. +alert dnp3 any any -> any any (msg:"SURICATA DNP3 Unknown object"; \ + app-layer-event:dnp3.unknown_object; classtype:protocol-command-decode; sid:2270004; rev:2;) diff --git a/rules/dns-events.rules b/rules/dns-events.rules new file mode 100644 index 0000000..d4c02b5 --- /dev/null +++ b/rules/dns-events.rules @@ -0,0 +1,10 @@ +# Malformed data in request. Malformed means length fields are wrong, etc. +alert dns any any -> any any (msg:"SURICATA DNS malformed request data"; flow:to_server; app-layer-event:dns.malformed_data; classtype:protocol-command-decode; sid:2240002; rev:2;) +alert dns any any -> any any (msg:"SURICATA DNS malformed response data"; flow:to_client; app-layer-event:dns.malformed_data; classtype:protocol-command-decode; sid:2240003; rev:2;) +# Response flag set on to_server packet +alert dns any any -> any any (msg:"SURICATA DNS Not a request"; flow:to_server; app-layer-event:dns.not_a_request; classtype:protocol-command-decode; sid:2240004; rev:2;) +# Response flag not set on to_client packet +alert dns any any -> any any (msg:"SURICATA DNS Not a response"; flow:to_client; app-layer-event:dns.not_a_response; classtype:protocol-command-decode; sid:2240005; rev:2;) +# Z flag (reserved) not 0 +alert dns any any -> any any (msg:"SURICATA DNS Z flag set"; app-layer-event:dns.z_flag_set; classtype:protocol-command-decode; sid:2240006; rev:2;) +alert dns any any -> any any (msg:"SURICATA DNS Invalid opcode"; app-layer-event:dns.invalid_opcode; classtype:protocol-command-decode; sid:2240007; rev:1;) diff --git a/rules/files.rules b/rules/files.rules new file mode 100644 index 0000000..ec999a9 --- /dev/null +++ b/rules/files.rules @@ -0,0 +1,61 @@ +# Example rules for using the file handling and extraction functionality in Suricata. +# +# For storing files make sure you enable the "file" output. +# Also, make sure you read the comments that go with it in the suricata.yaml file. + +# Alert on files with jpg or bmp extensions +#alert http any any -> any any (msg:"FILEEXT JPG file claimed"; fileext:"jpg"; sid:1; rev:1;) +#alert http any any -> any any (msg:"FILEEXT BMP file claimed"; fileext:"bmp"; sid:3; rev:1;) + +# Store all files with jpg or pdf extension. +#alert http any any -> any any (msg:"FILESTORE jpg"; flow:established,to_server; fileext:"jpg"; filestore; sid:6; rev:1;) +#alert http any any -> any any (msg:"FILESTORE pdf"; flow:established,to_server; fileext:"pdf"; filestore; sid:8; rev:1;) + +# Store all PDF files, regardless of their name. +#alert http any any -> any any (msg:"FILEMAGIC pdf"; flow:established,to_server; filemagic:"PDF document"; filestore; sid:9; rev:1;) + +# Same for JPEG's. +#alert http any any -> any any (msg:"FILEMAGIC jpg(1)"; flow:established,to_server; filemagic:"JPEG image data"; filestore; sid:10; rev:1;) +#alert http any any -> any any (msg:"FILEMAGIC jpg(2)"; flow:established,to_server; filemagic:"JFIF"; filestore; sid:11; rev:1;) + +# Unusually short file +#alert http any any -> any any (msg:"FILEMAGIC short"; flow:established,to_server; filemagic:"very short file (no magic)"; filestore; sid:12; rev:1;) + +# Simply store all files we encounter, no alerts. +#alert http any any -> any any (msg:"FILE store all"; filestore; noalert; sid:15; rev:1;) + +# Store all JPG files, don't alert. +#alert http any any -> any any (msg:"FILE magic"; filemagic:"JFIF"; filestore; noalert; sid:16; rev:1;) +#alert http any any -> any any (msg:"FILE magic"; filemagic:"GIF"; filestore; noalert; sid:23; rev:1;) +#alert http any any -> any any (msg:"FILE magic"; filemagic:"PNG"; filestore; noalert; sid:17; rev:1;) + +# Store all Windows executables +#alert http any any -> any any (msg:"FILE magic -- windows"; flow:established,to_client; filemagic:"executable for MS Windows"; filestore; sid:18; rev:1;) + +# Alert on PNG with 1x1 pixels (tracking) +#alert http any any -> any any (msg:"FILE tracking PNG (1x1 pixel) (1)"; filemagic:"PNG image data, 1 x 1,"; sid:19; rev:1;) +#alert http any any -> any any (msg:"FILE tracking PNG (1x1 pixel) (2)"; filemagic:"PNG image data, 1 x 1|00|"; sid:20; rev:1;) + +# Alert on GIF with 1x1 pixels (tracking) +# The pattern matches on |00| which is the end of the magic buffer, this way we won't match on 1 x 128. +#alert http any any -> any any (msg:"FILE tracking GIF (1x1 pixel)"; filemagic:"GIF image data, version 89a, 1 x 1|00|"; sid:21; rev:1;) + +# Alert and store pdf attachment but not pdf file +#alert http any any -> any any (msg:"FILE pdf claimed, but not pdf"; flow:established,to_client; fileext:"pdf"; filemagic:!"PDF document"; filestore; sid:22; rev:1;) + +# Alert and store files over SMTP +#alert smtp any any -> any any (msg:"File Found over SMTP and stored"; filestore; sid:27; rev:1;) + +# Alert and store files from black list checksum: md5 or sha1 or sha256 +#alert http any any -> any any (msg:"Black list checksum match and extract MD5"; filemd5:fileextraction-chksum.list; filestore; sid:28; rev:1;) +#alert http any any -> any any (msg:"Black list checksum match and extract SHA1"; filesha1:fileextraction-chksum.list; filestore; sid:29; rev:1;) +#alert http any any -> any any (msg:"Black list checksum match and extract SHA256"; filesha256:fileextraction-chksum.list; filestore; sid:30; rev:1;) + +# Alert and store files over FTP +#alert ftp-data any any -> any any (msg:"File Found within FTP and stored"; filestore; filename:"password"; ftpdata_command:stor; sid:31; rev:1;) + +# Alert and store files over SMB (with RUST activated) +#alert smb any any -> any any (msg:"File Found over SMB and stored"; filestore; sid:32; rev:1;) + +# Alert and store files over NFS (with RUST activated) +#alert nfs any any -> any any (msg:"File found within NFS and stored"; filestore; sid:33; rev:1;) diff --git a/rules/ftp-events.rules b/rules/ftp-events.rules new file mode 100644 index 0000000..d32c93f --- /dev/null +++ b/rules/ftp-events.rules @@ -0,0 +1,6 @@ +# FTP app-layer event rules +# +# SID range start: 2232000 + +alert ftp any any -> any any (msg:"SURICATA FTP Request command too long"; flow:to_server; app-layer-event:ftp.request_command_too_long; classtype:protocol-command-decode; sid:2232000; rev:1;) +alert ftp any any -> any any (msg:"SURICATA FTP Response command too long"; flow:to_client; app-layer-event:ftp.response_command_too_long; classtype:protocol-command-decode; sid:2232001; rev:1;) diff --git a/rules/http-events.rules b/rules/http-events.rules new file mode 100644 index 0000000..8c7763f --- /dev/null +++ b/rules/http-events.rules @@ -0,0 +1,94 @@ +# HTTP event rules +# +# SID's fall in the 2221000+ range. See http://doc.emergingthreats.net/bin/view/Main/SidAllocation +# +# These sigs fire at most once per HTTP transaction. +# +# A flowint http.anomaly.count is incremented for each match. By default it will be 0. +# +alert http any any -> any any (msg:"SURICATA HTTP unknown error"; flow:established; app-layer-event:http.unknown_error; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221000; rev:1;) +alert http any any -> any any (msg:"SURICATA HTTP gzip decompression failed"; flow:established; app-layer-event:http.gzip_decompression_failed; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221001; rev:1;) +alert http any any -> any any (msg:"SURICATA HTTP request field missing colon"; flow:established,to_server; app-layer-event:http.request_field_missing_colon; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221002; rev:1;) +alert http any any -> any any (msg:"SURICATA HTTP response field missing colon"; flow:established,to_client; app-layer-event:http.response_field_missing_colon; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221020; rev:1;) +alert http any any -> any any (msg:"SURICATA HTTP invalid request chunk len"; flow:established,to_server; app-layer-event:http.invalid_request_chunk_len; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221003; rev:1;) +alert http any any -> any any (msg:"SURICATA HTTP invalid response chunk len"; flow:established,to_client; app-layer-event:http.invalid_response_chunk_len; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221004; rev:1;) +alert http any any -> any any (msg:"SURICATA HTTP invalid transfer encoding value in request"; flow:established,to_server; app-layer-event:http.invalid_transfer_encoding_value_in_request; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221005; rev:1;) +alert http any any -> any any (msg:"SURICATA HTTP invalid transfer encoding value in response"; flow:established,to_client; app-layer-event:http.invalid_transfer_encoding_value_in_response; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221006; rev:1;) +alert http any any -> any any (msg:"SURICATA HTTP invalid content length field in request"; flow:established,to_server; app-layer-event:http.invalid_content_length_field_in_request; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221007; rev:1;) +alert http any any -> any any (msg:"SURICATA HTTP invalid content length field in response"; flow:established,to_client; app-layer-event:http.invalid_content_length_field_in_response; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221008; rev:1;) +alert http any any -> any any (msg:"SURICATA HTTP status 100-Continue already seen"; flow:established,to_client; app-layer-event:http.100_continue_already_seen; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221009; rev:1;) +alert http any any -> any any (msg:"SURICATA HTTP unable to match response to request"; flow:established,to_client; app-layer-event:http.unable_to_match_response_to_request; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221010; rev:1;) +alert http any any -> any any (msg:"SURICATA HTTP invalid server port in request"; flow:established,to_server; app-layer-event:http.invalid_server_port_in_request; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221011; rev:1;) +alert http any any -> any any (msg:"SURICATA HTTP invalid authority port"; flow:established; app-layer-event:http.invalid_authority_port; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221012; rev:1;) +alert http any any -> any any (msg:"SURICATA HTTP request header invalid"; flow:established,to_server; app-layer-event:http.request_header_invalid; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221013; rev:1;) +alert http any any -> any any (msg:"SURICATA HTTP response header invalid"; flow:established,to_client; app-layer-event:http.response_header_invalid; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221021; rev:1;) +alert http any any -> any any (msg:"SURICATA HTTP missing Host header"; flow:established,to_server; app-layer-event:http.missing_host_header; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221014; rev:1;) +# Alert if hostname is both part of URL and Host header and they are not the same. +alert http any any -> any any (msg:"SURICATA HTTP Host header ambiguous"; flow:established,to_server; app-layer-event:http.host_header_ambiguous; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221015; rev:1;) +alert http any any -> any any (msg:"SURICATA HTTP invalid request field folding"; flow:established,to_server; app-layer-event:http.invalid_request_field_folding; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221016; rev:1;) +alert http any any -> any any (msg:"SURICATA HTTP invalid response field folding"; flow:established,to_client; app-layer-event:http.invalid_response_field_folding; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221017; rev:1;) +alert http any any -> any any (msg:"SURICATA HTTP request buffer too long"; flow:established,to_server; app-layer-event:http.request_field_too_long; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221018; rev:1;) +alert http any any -> any any (msg:"SURICATA HTTP response buffer too long"; flow:established,to_client; app-layer-event:http.response_field_too_long; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221019; rev:1;) +# Multipart parser detected generic error. +alert http any any -> any any (msg:"SURICATA HTTP multipart generic error"; flow:established,to_server; app-layer-event:http.multipart_generic_error; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221022; rev:1;) +# Multipart header claiming a file to present, but no actual filedata available. +alert http any any -> any any (msg:"SURICATA HTTP multipart no filedata"; flow:established,to_server; app-layer-event:http.multipart_no_filedata; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221023; rev:1;) +# Multipart header invalid. +alert http any any -> any any (msg:"SURICATA HTTP multipart invalid header"; flow:established,to_server; app-layer-event:http.multipart_invalid_header; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221024; rev:1;) +# Warn when the port in the Host: header doesn't match the actual TCP Server port. +alert http any any -> any any (msg:"SURICATA HTTP request server port doesn't match TCP port"; flow:established,to_server; app-layer-event:http.request_server_port_tcp_port_mismatch; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221026; rev:1;) +# Host part of URI is invalid +alert http any any -> any any (msg:"SURICATA HTTP Host part of URI is invalid"; flow:established,to_server; app-layer-event:http.request_uri_host_invalid; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221027; rev:1;) +# Host header is invalid +alert http any any -> any any (msg:"SURICATA HTTP Host header invalid"; flow:established,to_server; app-layer-event:http.request_header_host_invalid; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221028; rev:1;) +# URI is terminated by non-compliant characters. RFC allows for space (0x20), but many implementations permit others like tab and more. +alert http any any -> any any (msg:"SURICATA HTTP URI terminated by non-compliant character"; flow:established,to_server; app-layer-event:http.uri_delim_non_compliant; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221029; rev:1;) +# Method is terminated by non-compliant characters. RFC allows for space (0x20), but many implementations permit others like tab and more. +alert http any any -> any any (msg:"SURICATA HTTP METHOD terminated by non-compliant character"; flow:established,to_server; app-layer-event:http.method_delim_non_compliant; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221030; rev:1;) +# Request line started with whitespace +alert http any any -> any any (msg:"SURICATA HTTP Request line with leading whitespace"; flow:established,to_server; app-layer-event:http.request_line_leading_whitespace; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221031; rev:1;) + + +alert http any any -> any any (msg:"SURICATA HTTP Request too many encoding layers"; flow:established,to_server; app-layer-event:http.too_many_encoding_layers; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221032; rev:1;) +alert http any any -> any any (msg:"SURICATA HTTP Request abnormal Content-Encoding header"; flow:established,to_server; app-layer-event:http.abnormal_ce_header; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221033; rev:1;) + +alert http any any -> any any (msg:"SURICATA HTTP Request unrecognized authorization method"; flow:established,to_server; app-layer-event:http.request_auth_unrecognized; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221034; rev:1;) + +alert http any any -> any any (msg:"SURICATA HTTP Request excessive header repetition"; flow:established,to_server; app-layer-event:http.request_header_repetition; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221035; rev:1;) +alert http any any -> any any (msg:"SURICATA HTTP Response excessive header repetition"; flow:established,to_client; app-layer-event:http.response_header_repetition; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221036; rev:1;) + +# This is a suricata limitation rather than anomaly traffic +# alert http any any -> any any (msg:"SURICATA HTTP Response multipart/byteranges"; flow:established,to_client; app-layer-event:http.response_multipart_byteranges; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221037; rev:1;) + +alert http any any -> any any (msg:"SURICATA HTTP Response abnormal chunked for transfer-encoding"; flow:established,to_client; app-layer-event:http.response_abnormal_transfer_encoding; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221038; rev:1;) + +alert http any any -> any any (msg:"SURICATA HTTP Response chunked with HTTP 0.9 or 1.0"; flow:established,to_client; app-layer-event:http.response_chunked_old_proto; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221039; rev:1;) + +alert http any any -> any any (msg:"SURICATA HTTP Response invalid protocol"; flow:established,to_client; app-layer-event:http.response_invalid_protocol; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221040; rev:1;) +alert http any any -> any any (msg:"SURICATA HTTP Response invalid status"; flow:established,to_client; app-layer-event:http.response_invalid_status; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221041; rev:1;) + +alert http any any -> any any (msg:"SURICATA HTTP Request line incomplete"; flow:established,to_server; app-layer-event:http.request_line_incomplete; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221042; rev:1;) + +alert http any any -> any any (msg:"SURICATA HTTP Request double encoded URI"; flow:established,to_server; app-layer-event:http.double_encoded_uri; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221043; rev:1;) + +alert http any any -> any any (msg:"SURICATA HTTP Invalid Request line"; flow:established,to_server; app-layer-event:http.request_line_invalid; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221044; rev:1;) +alert http any any -> any any (msg:"SURICATA HTTP Unexpected Request body"; flow:established,to_server; app-layer-event:http.request_body_unexpected; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221045; rev:1;) + +alert http any any -> any any (msg:"SURICATA HTTP LZMA reached its memory limit"; flow:established; app-layer-event:http.lzma_memlimit_reached; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221046; rev:1;) + +alert http any any -> any any (msg:"SURICATA HTTP duplicate content length field in request"; flow:established,to_server; app-layer-event:http.duplicate_content_length_field_in_request; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221047; rev:1;) +alert http any any -> any any (msg:"SURICATA HTTP duplicate content length field in response"; flow:established,to_client; app-layer-event:http.duplicate_content_length_field_in_response; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221048; rev:1;) + +alert http any any -> any any (msg:"SURICATA HTTP compression bomb"; flow:established; app-layer-event:http.compression_bomb; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221049; rev:1;) + +alert http any any -> any any (msg:"SURICATA HTTP too many warnings"; flow:established; app-layer-event:http.too_many_warnings; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221050; rev:1;) + +alert http any any -> any any (msg:"SURICATA HTTP invalid Range header value"; flow:established; app-layer-event:http.range_invalid; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221051; rev:1;) + +alert http any any -> any any (msg:"SURICATA HTTP file name too long"; flow:established; app-layer-event:http.file_name_too_long; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221052; rev:1;) + +alert http any any -> any any (msg:"SURICATA HTTP failed protocol change"; flow:established; app-layer-event:http.failed_protocol_change; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:2221053; rev:1;) + +#alert http any any -> any any (msg:"SURICATA HTTP request chunk extension"; flow:established; app-layer-event:http.request_chunk_extension; classtype:protocol-command-decode; sid:2221054; rev:1;) + +# next sid 2221055 diff --git a/rules/http2-events.rules b/rules/http2-events.rules new file mode 100644 index 0000000..413fdd6 --- /dev/null +++ b/rules/http2-events.rules @@ -0,0 +1,23 @@ +# HTTP2 app layer event rules +# +# SID's fall in the 2290000+ range. See https://redmine.openinfosecfoundation.org/projects/suricata/wiki/AppLayer +# +# These sigs fire at most once per connection. +# + +alert http2 any any -> any any (msg:"SURICATA HTTP2 invalid frame header"; flow:established; app-layer-event:http2.invalid_frame_header; classtype:protocol-command-decode; sid:2290000; rev:1;) +alert http2 any any -> any any (msg:"SURICATA HTTP2 invalid client magic"; flow:established; app-layer-event:http2.invalid_client_magic; classtype:protocol-command-decode; sid:2290001; rev:1;) +alert http2 any any -> any any (msg:"SURICATA HTTP2 invalid frame data"; flow:established; app-layer-event:http2.invalid_frame_data; classtype:protocol-command-decode; sid:2290002; rev:1;) +alert http2 any any -> any any (msg:"SURICATA HTTP2 invalid header"; flow:established; app-layer-event:http2.invalid_header; classtype:protocol-command-decode; sid:2290003; rev:1;) +alert http2 any any -> any any (msg:"SURICATA HTTP2 invalid frame length"; flow:established; app-layer-event:http2.invalid_frame_length; classtype:protocol-command-decode; sid:2290004; rev:1;) +alert http2 any any -> any any (msg:"SURICATA HTTP2 header frame with extra data"; flow:established; app-layer-event:http2.extra_header_data; classtype:protocol-command-decode; sid:2290005; rev:1;) +alert http2 any any -> any any (msg:"SURICATA HTTP2 too long frame data"; flow:established; app-layer-event:http2.long_frame_data; classtype:protocol-command-decode; sid:2290006; rev:1;) +alert http2 any any -> any any (msg:"SURICATA HTTP2 stream identifier reuse"; flow:established; app-layer-event:http2.stream_id_reuse; classtype:protocol-command-decode; sid:2290007; rev:1;) +alert http2 any any -> any any (msg:"SURICATA HTTP2 invalid HTTP1 settings during upgrade"; flow:established; app-layer-event:http2.invalid_http1_settings; classtype:protocol-command-decode; sid:2290008; rev:1;) +alert http2 any any -> any any (msg:"SURICATA HTTP2 failed decompression"; flow:established; app-layer-event:http2.failed_decompression; classtype:protocol-command-decode; sid:2290009; rev:1;) +alert http2 any any -> any any (msg:"SURICATA HTTP2 invalid range header"; flow:established; app-layer-event:http2.invalid_range; classtype:protocol-command-decode; sid:2290010; rev:1;) +alert http2 any any -> any any (msg:"SURICATA HTTP2 variable-length integer overflow"; flow:established; app-layer-event:http2.header_integer_overflow; classtype:protocol-command-decode; sid:2290011; rev:1;) +alert http2 any any -> any any (msg:"SURICATA HTTP2 too many streams"; flow:established; app-layer-event:http2.too_many_streams; classtype:protocol-command-decode; sid:2290012; rev:1;) +alert http2 any any -> any any (msg:"SURICATA HTTP2 authority host mismatch"; flow:established,to_server; app-layer-event:http2.authority_host_mismatch; classtype:protocol-command-decode; sid:2290013; rev:1;) +alert http2 any any -> any any (msg:"SURICATA HTTP2 user info in uri"; flow:established,to_server; app-layer-event:http2.userinfo_in_uri; classtype:protocol-command-decode; sid:2290014; rev:1;) +alert http2 any any -> any any (msg:"SURICATA HTTP2 reassembly limit reached"; flow:established; app-layer-event:http2.reassembly_limit_reached; classtype:protocol-command-decode; sid:2290015; rev:1;) diff --git a/rules/ipsec-events.rules b/rules/ipsec-events.rules new file mode 100644 index 0000000..ccfd651 --- /dev/null +++ b/rules/ipsec-events.rules @@ -0,0 +1,20 @@ +# IPsec app layer event rules +# +# SID's fall in the 2224000+ range. See https://redmine.openinfosecfoundation.org/projects/suricata/wiki/AppLayer +# +# These sigs fire at most once per connection. +# +alert ike any any -> any any (msg:"SURICATA IKE malformed request data"; flow:to_server; app-layer-event:ike.malformed_data; classtype:protocol-command-decode; sid:2224000; rev:2;) +alert ike any any -> any any (msg:"SURICATA IKE malformed response data"; flow:to_client; app-layer-event:ike.malformed_data; classtype:protocol-command-decode; sid:2224001; rev:2;) +alert ike any any -> any any (msg:"SURICATA IKE weak cryptographic parameters (Encryption)"; flow:to_client; app-layer-event:ike.weak_crypto_enc; classtype:protocol-command-decode; sid:2224002; rev:2;) +alert ike any any -> any any (msg:"SURICATA IKE weak cryptographic parameters (PRF)"; flow:to_client; app-layer-event:ike.weak_crypto_prf; classtype:protocol-command-decode; sid:2224003; rev:2;) +alert ike any any -> any any (msg:"SURICATA IKE weak cryptographic parameters (Auth)"; flow:to_client; app-layer-event:ike.weak_crypto_auth; classtype:protocol-command-decode; sid:2224004; rev:3;) +alert ike any any -> any any (msg:"SURICATA IKE weak cryptographic parameters (Diffie-Hellman)"; flow:to_client; app-layer-event:ike.weak_crypto_dh; classtype:protocol-command-decode; sid:2224005; rev:3;) +alert ike any any -> any any (msg:"SURICATA IKE no Diffie-Hellman exchange parameters"; flow:to_client; app-layer-event:ike.weak_crypto_nodh; classtype:protocol-command-decode; sid:2224006; rev:2;) +alert ike any any -> any any (msg:"SURICATA IKE no authentication"; flow:to_client; app-layer-event:ike.weak_crypto_noauth; classtype:protocol-command-decode; sid:2224007; rev:2;) +alert ike any any -> any any (msg:"SURICATA IKE no encryption (AH)"; flow:to_client; app-layer-event:ike.no_encryption; classtype:protocol-command-decode; sid:2224008; rev:2;) +alert ike any any -> any any (msg:"SURICATA IKE invalid proposal"; flow:to_server; app-layer-event:ike.invalid_proposal; classtype:protocol-command-decode; sid:2224009; rev:2;) +alert ike any any -> any any (msg:"SURICATA IKE invalid proposal selected"; flow:to_client; app-layer-event:ike.invalid_proposal; classtype:protocol-command-decode; sid:2224010; rev:2;) +alert ike any any -> any any (msg:"SURICATA IKE unknown proposal"; flow:to_server; app-layer-event:ike.unknown_proposal; classtype:protocol-command-decode; sid:2224011; rev:2;) +alert ike any any -> any any (msg:"SURICATA IKE unknown proposal selected"; flow:to_client; app-layer-event:ike.unknown_proposal; classtype:protocol-command-decode; sid:2224012; rev:2;) +alert ike any any -> any any (msg:"SURICATA IKE multiple server proposal"; flow:to_client; app-layer-event:ike.multiple_server_proposal; classtype:protocol-command-decode; sid:2224013; rev:1;) diff --git a/rules/kerberos-events.rules b/rules/kerberos-events.rules new file mode 100644 index 0000000..523140d --- /dev/null +++ b/rules/kerberos-events.rules @@ -0,0 +1,8 @@ +# Kerberos app layer event rules +# +# SID's fall in the 2226000+ range. See https://redmine.openinfosecfoundation.org/projects/suricata/wiki/AppLayer +# +# These sigs fire at most once per connection. +# +alert krb5 any any -> any any (msg:"SURICATA Kerberos 5 malformed request data"; flow:to_server; app-layer-event:krb5.malformed_data; classtype:protocol-command-decode; sid:2226000; rev:1;) +alert krb5 any any -> any any (msg:"SURICATA Kerberos 5 weak encryption parameters"; flow:to_client; app-layer-event:krb5.weak_encryption; classtype:protocol-command-decode; sid:2226001; rev:1;) diff --git a/rules/modbus-events.rules b/rules/modbus-events.rules new file mode 100644 index 0000000..27348e4 --- /dev/null +++ b/rules/modbus-events.rules @@ -0,0 +1,18 @@ +# Modbus Protocol version field is incorrect (Modbus version = 0) +alert modbus any any -> any any (msg:"SURICATA Modbus invalid Protocol version"; app-layer-event:modbus.invalid_protocol_id; classtype:protocol-command-decode; sid:2250001; rev:2;) +# Response (answer) we didn't see a Request for. Could be packet loss. +alert modbus any any -> any any (msg:"SURICATA Modbus unsolicited response"; app-layer-event:modbus.unsolicited_response; classtype:protocol-command-decode; sid:2250002; rev:2;) +# Malformed request or response. Malformed means length field is wrong +alert modbus any any -> any any (msg:"SURICATA Modbus invalid Length"; app-layer-event:modbus.invalid_length; classtype:protocol-command-decode; sid:2250003; rev:2;) +# Unit identifier field is incorrect +alert modbus any any -> any any (msg:"SURICATA Modbus invalid Unit Identifier"; app-layer-event:modbus.invalid_unit_identifier; classtype:protocol-command-decode; sid:2250004; rev:2;) +# Modbus Function code is incorrect +alert modbus any any -> any any (msg:"SURICATA Modbus invalid Function code"; app-layer-event:modbus.invalid_function_code; classtype:protocol-command-decode; sid:2250005; rev:2;) +# Modbus Request/Response value field is incorrect +alert modbus any any -> any any (msg:"SURICATA Modbus invalid Value"; app-layer-event:modbus.invalid_value; classtype:protocol-command-decode; sid:2250006; rev:2;) +# Modbus Exception code is incorrect +alert modbus any any -> any any (msg:"SURICATA Modbus Exception code invalid"; flow:to_client; app-layer-event:modbus.invalid_exception_code; classtype:protocol-command-decode; sid:2250007; rev:2;) +# Value field in Modbus Response does not match with Modbus Request +alert modbus any any -> any any (msg:"SURICATA Modbus Data mismatch"; flow:to_client; app-layer-event:modbus.value_mismatch; classtype:protocol-command-decode; sid:2250008; rev:2;) +# Request Flood Detected +alert modbus any any -> any any (msg:"SURICATA Modbus Request flood detected"; flow:to_server; app-layer-event:modbus.flooded; classtype:protocol-command-decode; sid:2250009; rev:2;) diff --git a/rules/mqtt-events.rules b/rules/mqtt-events.rules new file mode 100644 index 0000000..57b5821 --- /dev/null +++ b/rules/mqtt-events.rules @@ -0,0 +1,17 @@ +# MQTT app-layer event rules. +# +# These SIDs fall in the 2228000+ range. See: +# http://doc.emergingthreats.net/bin/view/Main/SidAllocation and +# https://redmine.openinfosecfoundation.org/projects/suricata/wiki/AppLayer + +alert mqtt any any -> any any (msg:"SURICATA MQTT CONNECT not seen before CONNACK"; app-layer-event:mqtt.missing_connect; classtype:protocol-command-decode; sid:2229000; rev:1;) +alert mqtt any any -> any any (msg:"SURICATA MQTT PUBLISH not seen before PUBACK/PUBREL/PUBREC/PUBCOMP"; app-layer-event:mqtt.missing_publish; classtype:protocol-command-decode; sid:2229001; rev:1;) +alert mqtt any any -> any any (msg:"SURICATA MQTT SUBSCRIBE not seen before SUBACK"; app-layer-event:mqtt.missing_subscribe; classtype:protocol-command-decode; sid:2229002; rev:1;) +alert mqtt any any -> any any (msg:"SURICATA MQTT UNSUBSCRIBE not seen before UNSUBACK"; app-layer-event:mqtt.missing_unsubscribe; classtype:protocol-command-decode; sid:2229003; rev:1;) +alert mqtt any any -> any any (msg:"SURICATA MQTT duplicate CONNECT"; app-layer-event:mqtt.double_connect; classtype:protocol-command-decode; sid:2229004; rev:1;) +alert mqtt any any -> any any (msg:"SURICATA MQTT message seen before CONNECT/CONNACK completion"; app-layer-event:mqtt.unintroduced_message; classtype:protocol-command-decode; sid:2229005; rev:1;) +alert mqtt any any -> any any (msg:"SURICATA MQTT invalid QOS level"; app-layer-event:mqtt.invalid_qos_level; classtype:protocol-command-decode; sid:2229006; rev:1;) +alert mqtt any any -> any any (msg:"SURICATA MQTT missing message ID"; app-layer-event:mqtt.missing_msg_id; classtype:protocol-command-decode; sid:2229007; rev:1;) +alert mqtt any any -> any any (msg:"SURICATA MQTT unassigned message type (0 or >15)"; app-layer-event:mqtt.unassigned_msg_type; classtype:protocol-command-decode; sid:2229008; rev:1;) +alert mqtt any any -> any any (msg:"SURICATA MQTT too many transactions"; app-layer-event:mqtt.too_many_transactions; classtype:protocol-command-decode; sid:2229009; rev:1;) +alert mqtt any any -> any any (msg:"SURICATA MQTT malformed traffic"; app-layer-event:mqtt.malformed_traffic; classtype:protocol-command-decode; sid:2229010; rev:1;) diff --git a/rules/nfs-events.rules b/rules/nfs-events.rules new file mode 100644 index 0000000..0f86893 --- /dev/null +++ b/rules/nfs-events.rules @@ -0,0 +1,9 @@ +# NFS app layer event rules +# +# SID's fall in the 2223000+ range. See https://redmine.openinfosecfoundation.org/projects/suricata/wiki/AppLayer +# +# These sigs fire at most once per connection. +# +alert nfs any any -> any any (msg:"SURICATA NFS malformed request data"; flow:to_server; app-layer-event:nfs.malformed_data; classtype:protocol-command-decode; sid:2223000; rev:1;) +alert nfs any any -> any any (msg:"SURICATA NFS malformed response data"; flow:to_client; app-layer-event:nfs.malformed_data; classtype:protocol-command-decode; sid:2223001; rev:1;) +alert nfs any any -> any any (msg:"SURICATA NFS too many transactions"; app-layer-event:nfs.too_many_transactions; classtype:protocol-command-decode; sid:2223002; rev:1;) diff --git a/rules/ntp-events.rules b/rules/ntp-events.rules new file mode 100644 index 0000000..fe70337 --- /dev/null +++ b/rules/ntp-events.rules @@ -0,0 +1,8 @@ +# NTP app layer event rules +# +# SID's fall in the 2222000+ range. See https://redmine.openinfosecfoundation.org/projects/suricata/wiki/AppLayer +# +# These sigs fire at most once per connection. +# +alert ntp any any -> any any (msg:"SURICATA NTP malformed request data"; flow:to_server; app-layer-event:ntp.malformed_data; classtype:protocol-command-decode; sid:2222000; rev:1;) +alert ntp any any -> any any (msg:"SURICATA NTP malformed response data"; flow:to_client; app-layer-event:ntp.malformed_data; classtype:protocol-command-decode; sid:2222001; rev:1;) diff --git a/rules/quic-events.rules b/rules/quic-events.rules new file mode 100644 index 0000000..41e9628 --- /dev/null +++ b/rules/quic-events.rules @@ -0,0 +1,8 @@ +# QUIC app-layer event rules. +# +# These SIDs fall in the 2231000+ range. See: +# http://doc.emergingthreats.net/bin/view/Main/SidAllocation and +# https://redmine.openinfosecfoundation.org/projects/suricata/wiki/AppLayer + +alert quic any any -> any any (msg:"SURICATA QUIC failed decrypt"; app-layer-event:quic.failed_decrypt; classtype:protocol-command-decode; sid:2231000; rev:1;) +alert quic any any -> any any (msg:"SURICATA QUIC error on data"; app-layer-event:quic.error_on_data; classtype:protocol-command-decode; sid:2231001; rev:1;) diff --git a/rules/rfb-events.rules b/rules/rfb-events.rules new file mode 100644 index 0000000..08bc493 --- /dev/null +++ b/rules/rfb-events.rules @@ -0,0 +1,10 @@ +# RFB app-layer event rules. +# +# These SIDs fall in the 2233000+ range. See: +# http://doc.emergingthreats.net/bin/view/Main/SidAllocation and +# https://redmine.openinfosecfoundation.org/projects/suricata/wiki/AppLayer + +alert rfb any any -> any any (msg:"SURICATA RFB Malformed or unknown message"; app-layer-event:rfb.malformed_message; classtype:protocol-command-decode; sid:2233000; rev:1;) +alert rfb any any -> any any (msg:"SURICATA RFB Unimplemented security type"; app-layer-event:rfb.unimplemented_security_type; classtype:protocol-command-decode; sid:2233001; rev:1;) +alert rfb any any -> any any (msg:"SURICATA RFB Unknown security result"; app-layer-event:rfb.unknown_security_result; classtype:protocol-command-decode; sid:2233002; rev:1;) +alert rfb any any -> any any (msg:"SURICATA RFB Unexpected State in Parser"; app-layer-event:rfb.confused_state; classtype:protocol-command-decode; sid:2233003; rev:1;) diff --git a/rules/smb-events.rules b/rules/smb-events.rules new file mode 100644 index 0000000..745c2ea --- /dev/null +++ b/rules/smb-events.rules @@ -0,0 +1,46 @@ +# SMB app layer event rules +# +# SID's fall in the 2225000+ range. See https://redmine.openinfosecfoundation.org/projects/suricata/wiki/AppLayer +# +# These sigs fire at most once per connection. +# + +alert smb any any -> any any (msg:"SURICATA SMB internal parser error"; flow:to_server; app-layer-event:smb.internal_error; classtype:protocol-command-decode; sid:2225000; rev:1;) +alert smb any any -> any any (msg:"SURICATA SMB internal parser error"; flow:to_client; app-layer-event:smb.internal_error; classtype:protocol-command-decode; sid:2225001; rev:1;) + +alert smb any any -> any any (msg:"SURICATA SMB malformed request data"; flow:to_server; app-layer-event:smb.malformed_data; classtype:protocol-command-decode; sid:2225002; rev:1;) +alert smb any any -> any any (msg:"SURICATA SMB malformed response data"; flow:to_client; app-layer-event:smb.malformed_data; classtype:protocol-command-decode; sid:2225003; rev:1;) + +alert smb any any -> any any (msg:"SURICATA SMB malformed NTLMSSP record"; flow:to_server; app-layer-event:smb.malformed_ntlmssp_request; classtype:protocol-command-decode; sid:2225004; rev:1;) + +alert smb any any -> any any (msg:"SURICATA SMB malformed request dialects"; flow:to_server; app-layer-event:smb.negotiate_malformed_dialects; classtype:protocol-command-decode; sid:2225005; rev:1;) + +alert smb any any -> any any (msg:"SURICATA SMB file overlap"; app-layer-event:smb.file_overlap; classtype:protocol-command-decode; sid:2225006; rev:1;) +alert smb any any -> any any (msg:"SURICATA SMB wrong direction"; app-layer-event:smb.response_to_server; classtype:protocol-command-decode; sid:2225007; rev:1;) +alert smb any any -> any any (msg:"SURICATA SMB wrong direction"; app-layer-event:smb.request_to_client; classtype:protocol-command-decode; sid:2225008; rev:1;) + +# checks negotiated max-read-size and 'app-layer.protocols.smb.max-read-size` +alert smb any any -> any any (msg:"SURICATA SMB max requested READ size exceeded"; flow:to_server; app-layer-event:smb.read_request_too_large; classtype:protocol-command-decode; sid:2225009; rev:1;) +# checks negotiated max-read-size and 'app-layer.protocols.smb.max-read-size` +alert smb any any -> any any (msg:"SURICATA SMB max response READ size exceeded"; flow:to_client; app-layer-event:smb.read_response_too_large; classtype:protocol-command-decode; sid:2225010; rev:1;) +# checks negotiated max-write-size and 'app-layer.protocols.smb.max-write-size` +alert smb any any -> any any (msg:"SURICATA SMB max WRITE size exceeded"; flow:to_server; app-layer-event:smb.write_request_too_large; classtype:protocol-command-decode; sid:2225011; rev:1;) + +# checks 'app-layer.protocols.smb.max-read-size`, NEGOTIATE PROTOCOL response, and NBSS record length against SMB read data length +alert smb any any -> any any (msg:"SURICATA SMB supported READ size exceeded"; flow:to_client; app-layer-event:smb.negotiate_max_read_size_too_large; classtype:protocol-command-decode; sid:2225012; rev:1;) +# checks 'app-layer.protocols.smb.max-write-size`, NEGOTIATE PROTOCOL response, NBSS record length against SMB write data length +alert smb any any -> any any (msg:"SURICATA SMB supported WRITE size exceeded"; flow:to_server; app-layer-event:smb.negotiate_max_write_size_too_large; classtype:protocol-command-decode; sid:2225013; rev:1;) + +# checks 'app-layer.protocols.smb.max-write-queue-size` against out of order chunks +alert smb any any -> any any (msg:"SURICATA SMB max WRITE queue size exceeded"; flow:to_server; app-layer-event:smb.write_queue_size_exceeded; classtype:protocol-command-decode; sid:2225014; rev:1;) +# checks 'app-layer.protocols.smb.max-write-queue-cnt` against out of order chunks +alert smb any any -> any any (msg:"SURICATA SMB max WRITE queue cnt exceeded"; flow:to_server; app-layer-event:smb.write_queue_cnt_exceeded; classtype:protocol-command-decode; sid:2225015; rev:1;) + +# checks 'app-layer.protocols.smb.max-read-queue-size` against out of order chunks +alert smb any any -> any any (msg:"SURICATA SMB max READ queue size exceeded"; flow:to_client; app-layer-event:smb.read_queue_size_exceeded; classtype:protocol-command-decode; sid:2225016; rev:1;) +# checks 'app-layer.protocols.smb.max-read-queue-cnt` against out of order chunks +alert smb any any -> any any (msg:"SURICATA SMB max READ queue cnt exceeded"; flow:to_client; app-layer-event:smb.read_queue_cnt_exceeded; classtype:protocol-command-decode; sid:2225017; rev:1;) + +alert smb any any -> any any (msg:"SURICATA SMB too many transactions"; app-layer-event:smb.too_many_transactions; classtype:protocol-command-decode; sid:2225018; rev:1;) + +# next sid 2225019 diff --git a/rules/smtp-events.rules b/rules/smtp-events.rules new file mode 100644 index 0000000..135b84c --- /dev/null +++ b/rules/smtp-events.rules @@ -0,0 +1,34 @@ +# SMTP event rules +# +# SID's fall in the 2220000+ range. See http://doc.emergingthreats.net/bin/view/Main/SidAllocation +# +# These sigs fire at most once per connection. +# +# A flowint smtp.anomaly.count is incremented for each match. By default it will be 0. +# +alert smtp any any -> any any (msg:"SURICATA SMTP invalid reply"; flow:established,to_client; app-layer-event:smtp.invalid_reply; flowint:smtp.anomaly.count,+,1; classtype:protocol-command-decode; sid:2220000; rev:1;) +alert smtp any any -> any any (msg:"SURICATA SMTP unable to match reply with request"; flow:established,to_client; app-layer-event:smtp.unable_to_match_reply_with_request; flowint:smtp.anomaly.count,+,1; classtype:protocol-command-decode; sid:2220001; rev:1;) +alert smtp any any -> any any (msg:"SURICATA SMTP max command line len exceeded"; flow:established; app-layer-event:smtp.max_command_line_len_exceeded; flowint:smtp.anomaly.count,+,1; classtype:protocol-command-decode; sid:2220002; rev:1;) +alert smtp any any -> any any (msg:"SURICATA SMTP max reply line len exceeded"; flow:established,to_client; app-layer-event:smtp.max_reply_line_len_exceeded; flowint:smtp.anomaly.count,+,1; classtype:protocol-command-decode; sid:2220003; rev:1;) +alert smtp any any -> any any (msg:"SURICATA SMTP invalid pipelined sequence"; flow:established,to_server; app-layer-event:smtp.invalid_pipelined_sequence; flowint:smtp.anomaly.count,+,1; classtype:protocol-command-decode; sid:2220004; rev:1;) +alert smtp any any -> any any (msg:"SURICATA SMTP bdat chunk len exceeded"; flow:established; app-layer-event:smtp.bdat_chunk_len_exceeded; flowint:smtp.anomaly.count,+,1; classtype:protocol-command-decode; sid:2220005; rev:1;) +alert smtp any any -> any any (msg:"SURICATA SMTP no server welcome message"; flow:established,to_client; app-layer-event:smtp.no_server_welcome_message; flowint:smtp.anomaly.count,+,1; classtype:protocol-command-decode; sid:2220006; rev:1;) +alert smtp any any -> any any (msg:"SURICATA SMTP tls rejected"; flow:established; app-layer-event:smtp.tls_rejected; flowint:smtp.anomaly.count,+,1; classtype:protocol-command-decode; sid:2220007; rev:1;) +alert smtp any any -> any any (msg:"SURICATA SMTP data command rejected"; flow:established,to_client; app-layer-event:smtp.data_command_rejected; flowint:smtp.anomaly.count,+,1; classtype:protocol-command-decode; sid:2220008; rev:1;) + +# SMTP MIME events +#alert smtp any any -> any any (msg:"SURICATA SMTP Mime parser failed"; flow:established; app-layer-event:smtp.mime_parse_failed; flowint:smtp.anomaly.count,+,1; classtype:protocol-command-decode; sid:2220009; rev:1;) +#alert smtp any any -> any any (msg:"SURICATA SMTP Mime malformed message found"; flow:established; app-layer-event:smtp.mime_malformed_msg; flowint:smtp.anomaly.count,+,1; classtype:protocol-command-decode; sid:2220010; rev:1;) +#alert smtp any any -> any any (msg:"SURICATA SMTP Mime base64-decoding failed"; flow:established; app-layer-event:smtp.mime_invalid_base64; flowint:smtp.anomaly.count,+,1; classtype:protocol-command-decode; sid:2220011; rev:1;) +#alert smtp any any -> any any (msg:"SURICATA SMTP Mime header name len exceeded"; flow:established; app-layer-event:smtp.mime_long_header_name; flowint:smtp.anomaly.count,+,1; classtype:protocol-command-decode; sid:2220012; rev:1;) +#alert smtp any any -> any any (msg:"SURICATA SMTP Mime header value len exceeded"; flow:established; app-layer-event:smtp.mime_long_header_value; flowint:smtp.anomaly.count,+,1; classtype:protocol-command-decode; sid:2220013; rev:1;) +#alert smtp any any -> any any (msg:"SURICATA SMTP Mime quoted-printable-decoding failed"; flow:established; app-layer-event:smtp.mime_invalid_qp; flowint:smtp.anomaly.count,+,1; classtype:protocol-command-decode; sid:2220014; rev:1;) +#alert smtp any any -> any any (msg:"SURICATA SMTP Mime line len exceeded"; flow:established; app-layer-event:smtp.mime_long_line; flowint:smtp.anomaly.count,+,1; classtype:protocol-command-decode; sid:2220015; rev:1;) +#alert smtp any any -> any any (msg:"SURICATA SMTP Mime encoded line len exceeded"; flow:established; app-layer-event:smtp.mime_long_enc_line; flowint:smtp.anomaly.count,+,1; classtype:protocol-command-decode; sid:2220016; rev:1;) +alert smtp any any -> any any (msg:"SURICATA SMTP Mime boundary length exceeded"; flow:established,to_server; app-layer-event:smtp.mime_long_boundary; flowint:smtp.anomaly.count,+,1; classtype:protocol-command-decode; sid:2220017; rev:1;) + +alert smtp any any -> any any (msg:"SURICATA SMTP duplicate fields"; flow:established,to_server; app-layer-event:smtp.duplicate_fields; flowint:smtp.anomaly.count,+,1; classtype:protocol-command-decode; sid:2220018; rev:1;) +alert smtp any any -> any any (msg:"SURICATA SMTP unparsable content"; flow:established,to_server; app-layer-event:smtp.unparsable_content; flowint:smtp.anomaly.count,+,1; classtype:protocol-command-decode; sid:2220019; rev:1;) +alert smtp any any -> any any (msg:"SURICATA SMTP filename truncated"; flow:established,to_server; app-layer-event:smtp.mime_long_filename; flowint:smtp.anomaly.count,+,1; classtype:protocol-command-decode; sid:2220020; rev:1;) +alert smtp any any -> any any (msg:"SURICATA SMTP failed protocol change"; flow:established; app-layer-event:smtp.failed_protocol_change; flowint:smtp.anomaly.count,+,1; classtype:protocol-command-decode; sid:2220021; rev:1;) +# next sid 2220022 diff --git a/rules/ssh-events.rules b/rules/ssh-events.rules new file mode 100644 index 0000000..99e199c --- /dev/null +++ b/rules/ssh-events.rules @@ -0,0 +1,10 @@ +# SSH app layer event rules +# +# SID's fall in the 2228000+ range. See https://redmine.openinfosecfoundation.org/projects/suricata/wiki/AppLayer +# +# These sigs fire at most once per connection. +# + +alert ssh any any -> any any (msg:"SURICATA SSH invalid banner"; flow:established; app-layer-event:ssh.invalid_banner; classtype:protocol-command-decode; sid:2228000; rev:1;) +alert ssh any any -> any any (msg:"SURICATA SSH too long banner"; flow:established; app-layer-event:ssh.long_banner; classtype:protocol-command-decode; sid:2228001; rev:1;) +alert ssh any any -> any any (msg:"SURICATA SSH invalid record"; flow:established; app-layer-event:ssh.invalid_record; classtype:protocol-command-decode; sid:2228002; rev:1;) diff --git a/rules/stream-events.rules b/rules/stream-events.rules new file mode 100644 index 0000000..e589c81 --- /dev/null +++ b/rules/stream-events.rules @@ -0,0 +1,113 @@ +# Stream events -- rules for matching on TCP stream engine events. +# +# SID's fall in the 2210000+ range. See http://doc.emergingthreats.net/bin/view/Main/SidAllocation +# +alert tcp any any -> any any (msg:"SURICATA STREAM 3way handshake with ack in wrong dir"; stream-event:3whs_ack_in_wrong_dir; classtype:protocol-command-decode; sid:2210000; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM 3way handshake async wrong sequence"; stream-event:3whs_async_wrong_seq; classtype:protocol-command-decode; sid:2210001; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM 3way handshake right seq wrong ack evasion"; stream-event:3whs_right_seq_wrong_ack_evasion; classtype:protocol-command-decode; sid:2210002; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM 3way handshake SYNACK in wrong direction"; stream-event:3whs_synack_in_wrong_direction; classtype:protocol-command-decode; sid:2210003; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM 3way handshake SYNACK resend with different ack"; stream-event:3whs_synack_resend_with_different_ack; classtype:protocol-command-decode; sid:2210004; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM 3way handshake SYNACK resend with different seq"; stream-event:3whs_synack_resend_with_diff_seq; classtype:protocol-command-decode; sid:2210005; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM 3way handshake SYNACK to server on SYN recv"; stream-event:3whs_synack_toserver_on_syn_recv; classtype:protocol-command-decode; sid:2210006; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM 3way handshake SYNACK with wrong ack"; stream-event:3whs_synack_with_wrong_ack; classtype:protocol-command-decode; sid:2210007; rev:2;) +# Excessive SYNs or SYN/ACKs within a session. Limit is set in stream engine, "stream.max-synack-queued". +alert tcp any any -> any any (msg:"SURICATA STREAM 3way handshake excessive different SYN/ACKs"; stream-event:3whs_synack_flood; classtype:protocol-command-decode; sid:2210055; rev:2;) +# Client sent an SYN packet with TCP fast open and data, but the server only ACK'd +# the SYN, not the data, while still supporting TFO. +alert tcp any any -> any any (msg:"SURICATA STREAM 3way handshake SYN/ACK ignored TFO data"; stream-event:3whs_synack_tfo_data_ignored; classtype:protocol-command-decode; sid:2210064; rev:1;) +alert tcp any any -> any any (msg:"SURICATA STREAM 3way handshake excessive different SYNs"; stream-event:3whs_syn_flood; classtype:protocol-command-decode; sid:2210063; rev:1;) +alert tcp any any -> any any (msg:"SURICATA STREAM 3way handshake SYN resend different seq on SYN recv"; stream-event:3whs_syn_resend_diff_seq_on_syn_recv; classtype:protocol-command-decode; sid:2210008; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM 3way handshake SYN to client on SYN recv"; stream-event:3whs_syn_toclient_on_syn_recv; classtype:protocol-command-decode; sid:2210009; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM 3way handshake wrong seq wrong ack"; stream-event:3whs_wrong_seq_wrong_ack; classtype:protocol-command-decode; sid:2210010; rev:2;) +# suspected data injection by sending data packet right after the SYN/ACK, +# this to make sure network inspection reject tools reject it as it's +# before the 3whs is complete. Only set in IPS mode. Drops unconditionally +# in the code, so can't be made not to drop. +drop tcp any any -> any any (msg:"SURICATA STREAM 3way handshake toclient data injection suspected"; flow:to_client; stream-event:3whs_ack_data_inject; classtype:protocol-command-decode; sid:2210057; rev:1;) +alert tcp any any -> any any (msg:"SURICATA STREAM 4way handshake SYNACK with wrong ACK"; stream-event:4whs_synack_with_wrong_ack; classtype:protocol-command-decode; sid:2210011; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM 4way handshake SYNACK with wrong SYN"; stream-event:4whs_synack_with_wrong_syn; classtype:protocol-command-decode; sid:2210012; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM 4way handshake wrong seq"; stream-event:4whs_wrong_seq; classtype:protocol-command-decode; sid:2210013; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM 4way handshake invalid ack"; stream-event:4whs_invalid_ack; classtype:protocol-command-decode; sid:2210014; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM CLOSEWAIT ACK out of window"; stream-event:closewait_ack_out_of_window; classtype:protocol-command-decode; sid:2210015; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM CLOSEWAIT FIN out of window"; stream-event:closewait_fin_out_of_window; classtype:protocol-command-decode; sid:2210016; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM CLOSEWAIT invalid ACK"; stream-event:closewait_invalid_ack; classtype:protocol-command-decode; sid:2210017; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM CLOSING ACK wrong seq"; stream-event:closing_ack_wrong_seq; classtype:protocol-command-decode; sid:2210018; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM CLOSING invalid ACK"; stream-event:closing_invalid_ack; classtype:protocol-command-decode; sid:2210019; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM ESTABLISHED packet out of window"; stream-event:est_packet_out_of_window; classtype:protocol-command-decode; sid:2210020; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM ESTABLISHED SYNACK resend"; stream-event:est_synack_resend; classtype:protocol-command-decode; sid:2210022; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM ESTABLISHED SYNACK resend with different ACK"; stream-event:est_synack_resend_with_different_ack; classtype:protocol-command-decode; sid:2210023; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM ESTABLISHED SYNACK resend with different seq"; stream-event:est_synack_resend_with_diff_seq; classtype:protocol-command-decode; sid:2210024; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM ESTABLISHED SYNACK to server"; stream-event:est_synack_toserver; classtype:protocol-command-decode; sid:2210025; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM ESTABLISHED SYN resend"; stream-event:est_syn_resend; classtype:protocol-command-decode; sid:2210026; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM ESTABLISHED SYN resend with different seq"; stream-event:est_syn_resend_diff_seq; classtype:protocol-command-decode; sid:2210027; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM ESTABLISHED SYN to client"; stream-event:est_syn_toclient; classtype:protocol-command-decode; sid:2210028; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM ESTABLISHED invalid ack"; stream-event:est_invalid_ack; classtype:protocol-command-decode; sid:2210029; rev:2;) + +# ACK received for Zero Window Probe segment. +#alert tcp any any -> any any (msg:"SURICATA STREAM ESTABLISHED ack for ZWP data"; stream-event:est_invalid_ack; classtype:protocol-command-decode; sid:2210065; rev:1;) + +alert tcp any any -> any any (msg:"SURICATA STREAM FIN invalid ack"; stream-event:fin_invalid_ack; classtype:protocol-command-decode; sid:2210030; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM FIN1 ack with wrong seq"; stream-event:fin1_ack_wrong_seq; classtype:protocol-command-decode; sid:2210031; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM FIN1 FIN with wrong seq"; stream-event:fin1_fin_wrong_seq; classtype:protocol-command-decode; sid:2210032; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM FIN1 invalid ack"; stream-event:fin1_invalid_ack; classtype:protocol-command-decode; sid:2210033; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM FIN2 ack with wrong seq"; stream-event:fin2_ack_wrong_seq; classtype:protocol-command-decode; sid:2210034; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM FIN2 FIN with wrong seq"; stream-event:fin2_fin_wrong_seq; classtype:protocol-command-decode; sid:2210035; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM FIN2 invalid ack"; stream-event:fin2_invalid_ack; classtype:protocol-command-decode; sid:2210036; rev:2;) +# very common when looking at midstream traffic after IDS started +#alert tcp any any -> any any (msg:"SURICATA STREAM FIN recv but no session"; stream-event:fin_but_no_session; classtype:protocol-command-decode; sid:2210037; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM FIN out of window"; stream-event:fin_out_of_window; classtype:protocol-command-decode; sid:2210038; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM Last ACK with wrong seq"; stream-event:lastack_ack_wrong_seq; classtype:protocol-command-decode; sid:2210039; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM Last ACK invalid ACK"; stream-event:lastack_invalid_ack; classtype:protocol-command-decode; sid:2210040; rev:2;) +# very common when looking at midstream traffic after IDS started +#alert tcp any any -> any any (msg:"SURICATA STREAM RST recv but no session"; stream-event:rst_but_no_session; classtype:protocol-command-decode; sid:2210041; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM TIMEWAIT ACK with wrong seq"; stream-event:timewait_ack_wrong_seq; classtype:protocol-command-decode; sid:2210042; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM TIMEWAIT invalid ack"; stream-event:timewait_invalid_ack; classtype:protocol-command-decode; sid:2210043; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM Packet with invalid timestamp"; stream-event:pkt_invalid_timestamp; classtype:protocol-command-decode; sid:2210044; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM Packet with invalid ack"; stream-event:pkt_invalid_ack; classtype:protocol-command-decode; sid:2210045; rev:2;) +# Broken TCP: ack field non 0, but ACK flag not set. http://ask.wireshark.org/questions/3183/acknowledgment-number-broken-tcp-the-acknowledge-field-is-nonzero-while-the-ack-flag-is-not-set +# Often result of broken load balancers, firewalls and such. +#alert tcp any any -> any any (msg:"SURICATA STREAM Packet with broken ack"; stream-event:pkt_broken_ack; classtype:protocol-command-decode; sid:2210051; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM SHUTDOWN RST invalid ack"; stream-event:rst_invalid_ack; classtype:protocol-command-decode; sid:2210046; rev:2;) +# SYN (re)send during shutdown (closing, closewait, finwait1, finwait2, lastack, timewait states) +#alert tcp any any -> any any (msg:"SURICATA STREAM SYN resend"; stream-event:shutdown_syn_resend; classtype:protocol-command-decode; sid:2210049; rev:2;) +# Sequence gap: missing data in the reassembly engine. Usually due to packet loss. Will be very noisy on a overloaded link / sensor. +#alert tcp any any -> any any (msg:"SURICATA STREAM reassembly sequence GAP -- missing packet(s)"; stream-event:reassembly_seq_gap; classtype:protocol-command-decode; sid:2210048; rev:2;) +alert tcp any any -> any any (msg:"SURICATA STREAM reassembly overlap with different data"; stream-event:reassembly_overlap_different_data; classtype:protocol-command-decode; sid:2210050; rev:2;) +# Bad Window Update: see bug 1238 for an explanation +alert tcp any any -> any any (msg:"SURICATA STREAM bad window update"; stream-event:pkt_bad_window_update; classtype:protocol-command-decode; sid:2210056; rev:1;) +# RST injection suspected. Alerts on packets *after* the RST, as these indicate the target +# rejected/ignored the RST. +alert tcp any any -> any any (msg:"SURICATA STREAM suspected RST injection"; stream-event:suspected_rst_inject; classtype:protocol-command-decode; sid:2210058; rev:1;) + +# retransmission detection +# +# The rules below match on retransmissions detected in various stages of the +# stream engine. They are all "noalert" rules that increment the counter +# tcp.retransmission.count. The last rule sid:2210054 matches if the counter +# reaches 10. Increase this number if the rule is too noisy. +# +# "regular" retransmissions, only count +alert tcp any any -> any any (msg:"SURICATA STREAM ESTABLISHED retransmission packet before last ack"; stream-event:est_pkt_before_last_ack; flowint:tcp.retransmission.count,+,1; noalert; classtype:protocol-command-decode; sid:2210021; rev:3;) +# retransmission, only count +alert tcp any any -> any any (msg:"SURICATA STREAM CLOSEWAIT retransmission packet before last ack"; stream-event:closewait_pkt_before_last_ack; flowint:tcp.retransmission.count,+,1; noalert; classtype:protocol-command-decode; sid:2210052; rev:3;) +# retransmission of pkt before reassembly window, only count +alert tcp any any -> any any (msg:"SURICATA STREAM reassembly segment before base seq (retransmission)"; stream-event:reassembly_segment_before_base_seq; flowint:tcp.retransmission.count,+,1; noalert; classtype:protocol-command-decode; sid:2210047; rev:2;) +# count "general" retransmissions +alert tcp any any -> any any (msg:"SURICATA STREAM Packet is retransmission"; stream-event:pkt_retransmission; flowint:tcp.retransmission.count,+,1; noalert; classtype:protocol-command-decode; sid:2210053; rev:1;) +# rule to alert if a stream has excessive retransmissions +alert tcp any any -> any any (msg:"SURICATA STREAM excessive retransmissions"; flowbits:isnotset,tcp.retransmission.alerted; flowint:tcp.retransmission.count,>=,10; flowbits:set,tcp.retransmission.alerted; classtype:protocol-command-decode; sid:2210054; rev:1;) +# Packet on wrong thread. Fires at most once per flow. +alert tcp any any -> any any (msg:"SURICATA STREAM pkt seen on wrong thread"; stream-event:wrong_thread; sid:2210059; rev:1;) + +# Packet with FIN+SYN set +alert tcp any any -> any any (msg:"SURICATA STREAM FIN SYN reuse"; stream-event:fin_syn; classtype:protocol-command-decode; sid:2210060; rev:1;) + +# Packet is a spurious retransmission, so a retransmission of already ACK'd data. +# Disabled by default as this quite common and not malicious. +#alert tcp any any -> any any (msg:"SURICATA STREAM spurious retransmission"; stream-event:pkt_spurious_retransmission; classtype:protocol-command-decode; sid:2210061; rev:1;) + +# Depth setting reached for a stream. Very common in normal traffic, so disable by default. +#alert tcp any any -> any any (msg:"SURICATA STREAM reassembly depth reached"; stream-event:reassembly_depth_reached; classtype:protocol-command-decode; sid:2210062; rev:1;) + +# next sid 2210066 + diff --git a/rules/tls-events.rules b/rules/tls-events.rules new file mode 100644 index 0000000..ab7963d --- /dev/null +++ b/rules/tls-events.rules @@ -0,0 +1,38 @@ +# TLS event rules +# +# SID's fall in the 2230000+ range. See http://doc.emergingthreats.net/bin/view/Main/SidAllocation +# +# These sigs fire at most once per connection. +# +# A flowint tls.anomaly.count is incremented for each match. By default it will be 0. +# +alert tls any any -> any any (msg:"SURICATA TLS invalid SSLv2 header"; flow:established; app-layer-event:tls.invalid_sslv2_header; flowint:tls.anomaly.count,+,1; classtype:protocol-command-decode; sid:2230000; rev:1;) +alert tls any any -> any any (msg:"SURICATA TLS invalid TLS header"; flow:established; app-layer-event:tls.invalid_tls_header; flowint:tls.anomaly.count,+,1; classtype:protocol-command-decode; sid:2230001; rev:1;) +alert tls any any -> any any (msg:"SURICATA TLS invalid record version"; flow:established; app-layer-event:tls.invalid_record_version; flowint:tls.anomaly.count,+,1; classtype:protocol-command-decode; sid:2230015; rev:1;) +alert tls any any -> any any (msg:"SURICATA TLS invalid record type"; flow:established; app-layer-event:tls.invalid_record_type; flowint:tls.anomaly.count,+,1; classtype:protocol-command-decode; sid:2230002; rev:1;) +alert tls any any -> any any (msg:"SURICATA TLS invalid handshake message"; flow:established; app-layer-event:tls.invalid_handshake_message; flowint:tls.anomaly.count,+,1; classtype:protocol-command-decode; sid:2230003; rev:1;) +alert tls any any -> any any (msg:"SURICATA TLS invalid certificate"; flow:established; app-layer-event:tls.invalid_certificate; flowint:tls.anomaly.count,+,1; classtype:protocol-command-decode; sid:2230004; rev:1;) +alert tls any any -> any any (msg:"SURICATA TLS certificate invalid length"; flow:established; app-layer-event:tls.certificate_invalid_length; flowint:tls.anomaly.count,+,1; classtype:protocol-command-decode; sid:2230007; rev:1;) +alert tls any any -> any any (msg:"SURICATA TLS error message encountered"; flow:established; app-layer-event:tls.error_message_encountered; flowint:tls.anomaly.count,+,1; classtype:protocol-command-decode; sid:2230009; rev:1;) +alert tls any any -> any any (msg:"SURICATA TLS invalid record/traffic"; flow:established; app-layer-event:tls.invalid_ssl_record; flowint:tls.anomaly.count,+,1; classtype:protocol-command-decode; sid:2230010; rev:1;) +alert tls any any -> any any (msg:"SURICATA TLS heartbeat encountered"; flow:established; app-layer-event:tls.heartbeat_message; flowint:tls.anomaly.count,+,1; classtype:protocol-command-decode; sid:2230011; rev:1;) +alert tls any any -> any any (msg:"SURICATA TLS overflow heartbeat encountered, possible exploit attempt (heartbleed)"; flow:established; app-layer-event:tls.overflow_heartbeat_message; flowint:tls.anomaly.count,+,1; classtype:protocol-command-decode; reference:cve,2014-0160; sid:2230012; rev:1;) +alert tls any any -> any any (msg:"SURICATA TLS invalid heartbeat encountered, possible exploit attempt (heartbleed)"; flow:established; app-layer-event:tls.invalid_heartbeat_message; flowint:tls.anomaly.count,+,1; classtype:protocol-command-decode; reference:cve,2014-0160; sid:2230013; rev:1;) +alert tls any any -> any any (msg:"SURICATA TLS invalid encrypted heartbeat encountered, possible exploit attempt (heartbleed)"; flow:established; app-layer-event:tls.dataleak_heartbeat_mismatch; flowint:tls.anomaly.count,+,1; classtype:protocol-command-decode; reference:cve,2014-0160; sid:2230014; rev:1;) +alert tls any any -> any any (msg:"SURICATA TLS multiple SNI extensions"; flow:established,to_server; app-layer-event:tls.multiple_sni_extensions; flowint:tls.anomaly.count,+,1; classtype:protocol-command-decode; sid:2230016; rev:1;) +alert tls any any -> any any (msg:"SURICATA TLS invalid SNI type"; flow:established,to_server; app-layer-event:tls.invalid_sni_type; flowint:tls.anomaly.count,+,1; classtype:protocol-command-decode; sid:2230017; rev:1;) +alert tls any any -> any any (msg:"SURICATA TLS invalid SNI length"; flow:established,to_server; app-layer-event:tls.invalid_sni_length; flowint:tls.anomaly.count,+,1; classtype:protocol-command-decode; sid:2230018; rev:1;) +alert tls any any -> any any (msg:"SURICATA TLS handshake invalid length"; flow:established; app-layer-event:tls.handshake_invalid_length; flowint:tls.anomaly.count,+,1; classtype:protocol-command-decode; sid:2230019; rev:1;) +alert tls any any -> any any (msg:"SURICATA TLS too many records in packet"; flow:established; app-layer-event:tls.too_many_records_in_packet; flowint:tls.anomaly.count,+,1; classtype:protocol-command-decode; sid:2230020; rev:1;) +alert tls any any -> any any (msg:"SURICATA TLS certificate invalid version"; flow:established; app-layer-event:tls.certificate_invalid_version; flowint:tls.anomaly.count,+,1; classtype:protocol-command-decode; sid:2230021; rev:1;) +alert tls any any -> any any (msg:"SURICATA TLS certificate invalid serial"; flow:established; app-layer-event:tls.certificate_invalid_serial; flowint:tls.anomaly.count,+,1; classtype:protocol-command-decode; sid:2230022; rev:1;) +alert tls any any -> any any (msg:"SURICATA TLS certificate invalid algorithm identifier"; flow:established; app-layer-event:tls.certificate_invalid_algorithmidentifier; flowint:tls.anomaly.count,+,1; classtype:protocol-command-decode; sid:2230023; rev:1;) +alert tls any any -> any any (msg:"SURICATA TLS certificate invalid x509 name"; flow:established; app-layer-event:tls.certificate_invalid_x509name; flowint:tls.anomaly.count,+,1; classtype:protocol-command-decode; sid:2230024; rev:1;) +alert tls any any -> any any (msg:"SURICATA TLS certificate invalid date"; flow:established; app-layer-event:tls.certificate_invalid_date; flowint:tls.anomaly.count,+,1; classtype:protocol-command-decode; sid:2230025; rev:1;) +alert tls any any -> any any (msg:"SURICATA TLS certificate invalid extensions"; flow:established; app-layer-event:tls.certificate_invalid_extensions; flowint:tls.anomaly.count,+,1; classtype:protocol-command-decode; sid:2230026; rev:1;) +alert tls any any -> any any (msg:"SURICATA TLS certificate invalid der"; flow:established; app-layer-event:tls.certificate_invalid_der; flowint:tls.anomaly.count,+,1; classtype:protocol-command-decode; sid:2230027; rev:1;) +alert tls any any -> any any (msg:"SURICATA TLS certificate invalid subject"; flow:established; app-layer-event:tls.certificate_invalid_subject; flowint:tls.anomaly.count,+,1; classtype:protocol-command-decode; sid:2230028; rev:1;) +alert tls any any -> any any (msg:"SURICATA TLS certificate invalid issuer"; flow:established; app-layer-event:tls.certificate_invalid_issuer; flowint:tls.anomaly.count,+,1; classtype:protocol-command-decode; sid:2230029; rev:1;) +alert tls any any -> any any (msg:"SURICATA TLS certificate invalid validity"; flow:established; app-layer-event:tls.certificate_invalid_validity; flowint:tls.anomaly.count,+,1; classtype:protocol-command-decode; sid:2230030; rev:1;) + +#next sid is 2230031 |