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Diffstat (limited to 'src/tests/detect-http-user-agent.c')
| -rw-r--r-- | src/tests/detect-http-user-agent.c | 1221 |
1 files changed, 1221 insertions, 0 deletions
diff --git a/src/tests/detect-http-user-agent.c b/src/tests/detect-http-user-agent.c new file mode 100644 index 0000000..df9c9c1 --- /dev/null +++ b/src/tests/detect-http-user-agent.c @@ -0,0 +1,1221 @@ +/* Copyright (C) 2007-2021 Open Information Security Foundation + * + * You can copy, redistribute or modify this Program under the terms of + * the GNU General Public License version 2 as published by the Free + * Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * version 2 along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +/** + * \ingroup httplayer + * + * @{ + */ + + +/** \file + * + * \author Anoop Saldanha <anoopsaldanha@gmail.com> + * \author Victor Julien <victor@inliniac.net> + * + * \brief Handle HTTP user agent match + * + */ + +#include "suricata-common.h" +#include "suricata.h" +#include "flow-util.h" +#include "flow.h" +#include "app-layer-parser.h" +#include "util-unittest.h" +#include "util-unittest-helper.h" +#include "app-layer.h" +#include "app-layer-htp.h" +#include "app-layer-protos.h" +#include "detect-engine-build.h" +#include "detect-engine-alert.h" + +static int DetectEngineHttpUATest( + const uint8_t *buf, const uint32_t buf_len, const char *sig, const bool expect) +{ + TcpSession ssn; + ThreadVars th_v; + DetectEngineThreadCtx *det_ctx = NULL; + Flow f; + + AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc(); + FAIL_IF_NULL(alp_tctx); + + memset(&th_v, 0, sizeof(th_v)); + memset(&f, 0, sizeof(f)); + memset(&ssn, 0, sizeof(ssn)); + + Packet *p = UTHBuildPacket(NULL, 0, IPPROTO_TCP); + FAIL_IF_NULL(p); + + FLOW_INITIALIZE(&f); + f.protoctx = (void *)&ssn; + f.proto = IPPROTO_TCP; + f.flags |= FLOW_IPV4; + p->flow = &f; + p->flowflags |= FLOW_PKT_TOSERVER; + p->flowflags |= FLOW_PKT_ESTABLISHED; + p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; + f.alproto = ALPROTO_HTTP1; + + StreamTcpInitConfig(true); + + DetectEngineCtx *de_ctx = DetectEngineCtxInit(); + FAIL_IF_NULL(de_ctx); + de_ctx->flags |= DE_QUIET; + + Signature *s = DetectEngineAppendSig(de_ctx, sig); + FAIL_IF_NULL(s); + + SigGroupBuild(de_ctx); + DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); + FAIL_IF_NULL(det_ctx); + + int r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_HTTP1, STREAM_TOSERVER, buf, buf_len); + FAIL_IF_NOT(r == 0); + FAIL_IF_NULL(f.alstate); + + /* do detect */ + SigMatchSignatures(&th_v, de_ctx, det_ctx, p); + + bool match = PacketAlertCheck(p, 1); + FAIL_IF_NOT(match == expect); + + AppLayerParserThreadCtxFree(alp_tctx); + + DetectEngineCtxFree(de_ctx); + StreamTcpFreeConfig(true); + FLOW_DESTROY(&f); + UTHFreePackets(&p, 1); + PASS; +} + +static int DetectEngineHttpUATest01(void) +{ + uint8_t http_buf[] = "GET /index.html HTTP/1.0\r\n" + "User-Agent: CONNECT\r\n" + "Host: www.onetwothreefourfivesixseven.org\r\n\r\n"; + uint32_t http_len = sizeof(http_buf) - 1; + return DetectEngineHttpUATest(http_buf, http_len, + "alert http any any -> any any " + "(msg:\"http user agent test\"; " + "content:\"CONNECT\"; http_user_agent; " + "sid:1;)", + true); +} + +static int DetectEngineHttpUATest02(void) +{ + uint8_t http_buf[] = "GET /index.html HTTP/1.0\r\n" + "User-Agent: CONNECT\r\n" + "Host: www.onetwothreefourfivesixseven.org\r\n\r\n"; + uint32_t http_len = sizeof(http_buf) - 1; + return DetectEngineHttpUATest(http_buf, http_len, + "alert http any any -> any any " + "(msg:\"http user agent test\"; " + "content:\"CO\"; depth:4; http_user_agent; " + "sid:1;)", + true); +} + +static int DetectEngineHttpUATest03(void) +{ + uint8_t http_buf[] = "CONNECT /index.html HTTP/1.0\r\n" + "User-Agent: CONNECT\r\n" + "Host: www.onetwothreefourfivesixseven.org\r\n\r\n"; + uint32_t http_len = sizeof(http_buf) - 1; + return DetectEngineHttpUATest(http_buf, http_len, + "alert http any any -> any any " + "(msg:\"http_user_agent test\"; " + "content:!\"ECT\"; depth:4; http_user_agent; " + "sid:1;)", + true); +} + +static int DetectEngineHttpUATest04(void) +{ + uint8_t http_buf[] = "CONNECT /index.html HTTP/1.0\r\n" + "User-Agent: CONNECT\r\n" + "Host: www.onetwothreefourfivesixseven.org\r\n\r\n"; + uint32_t http_len = sizeof(http_buf) - 1; + return DetectEngineHttpUATest(http_buf, http_len, + "alert http any any -> any any " + "(msg:\"http user agent test\"; " + "content:\"ECT\"; depth:4; http_user_agent; " + "sid:1;)", + false); +} + +static int DetectEngineHttpUATest05(void) +{ + uint8_t http_buf[] = "CONNECT /index.html HTTP/1.0\r\n" + "User-Agent: CONNECT\r\n" + "Host: www.onetwothreefourfivesixseven.org\r\n\r\n"; + uint32_t http_len = sizeof(http_buf) - 1; + return DetectEngineHttpUATest(http_buf, http_len, + "alert http any any -> any any " + "(msg:\"http user agent test\"; " + "content:!\"CON\"; depth:4; http_user_agent; " + "sid:1;)", + false); +} + +static int DetectEngineHttpUATest06(void) +{ + uint8_t http_buf[] = "CONNECT /index.html HTTP/1.0\r\n" + "User-Agent: CONNECT\r\n" + "Host: www.onetwothreefourfivesixseven.org\r\n\r\n"; + uint32_t http_len = sizeof(http_buf) - 1; + return DetectEngineHttpUATest(http_buf, http_len, + "alert http any any -> any any " + "(msg:\"http user agent test\"; " + "content:\"ECT\"; offset:3; http_user_agent; " + "sid:1;)", + true); +} + +static int DetectEngineHttpUATest07(void) +{ + uint8_t http_buf[] = "CONNECT /index.html HTTP/1.0\r\n" + "User-Agent: CONNECT\r\n" + "Host: www.onetwothreefourfivesixseven.org\r\n\r\n"; + uint32_t http_len = sizeof(http_buf) - 1; + return DetectEngineHttpUATest(http_buf, http_len, + "alert http any any -> any any " + "(msg:\"http user agent test\"; " + "content:!\"CO\"; offset:3; http_user_agent; " + "sid:1;)", + true); +} + +static int DetectEngineHttpUATest08(void) +{ + uint8_t http_buf[] = "CONNECT /index.html HTTP/1.0\r\n" + "User-Agent: CONNECT\r\n" + "Host: www.onetwothreefourfivesixseven.org\r\n\r\n"; + uint32_t http_len = sizeof(http_buf) - 1; + return DetectEngineHttpUATest(http_buf, http_len, + "alert http any any -> any any " + "(msg:\"http user agent test\"; " + "content:!\"ECT\"; offset:3; http_user_agent; " + "sid:1;)", + false); +} + +static int DetectEngineHttpUATest09(void) +{ + uint8_t http_buf[] = "CONNECT /index.html HTTP/1.0\r\n" + "User-Agent: CONNECT\r\n" + "Host: www.onetwothreefourfivesixseven.org\r\n\r\n"; + uint32_t http_len = sizeof(http_buf) - 1; + return DetectEngineHttpUATest(http_buf, http_len, + "alert http any any -> any any " + "(msg:\"http user agent test\"; " + "content:\"CON\"; offset:3; http_user_agent; " + "sid:1;)", + false); +} + +static int DetectEngineHttpUATest10(void) +{ + uint8_t http_buf[] = "CONNECT /index.html HTTP/1.0\r\n" + "User-Agent: CONNECT\r\n" + "Host: www.onetwothreefourfivesixseven.org\r\n\r\n"; + uint32_t http_len = sizeof(http_buf) - 1; + return DetectEngineHttpUATest(http_buf, http_len, + "alert http any any -> any any " + "(msg:\"http_user_agent test\"; " + "content:\"CO\"; http_user_agent; " + "content:\"EC\"; within:4; http_user_agent; " + "sid:1;)", + true); +} + +static int DetectEngineHttpUATest11(void) +{ + uint8_t http_buf[] = "CONNECT /index.html HTTP/1.0\r\n" + "User-Agent: CONNECT\r\n" + "Host: www.onetwothreefourfivesixseven.org\r\n\r\n"; + uint32_t http_len = sizeof(http_buf) - 1; + return DetectEngineHttpUATest(http_buf, http_len, + "alert http any any -> any any " + "(msg:\"http user agent test\"; " + "content:\"CO\"; http_user_agent; " + "content:!\"EC\"; within:3; http_user_agent; " + "sid:1;)", + true); +} + +static int DetectEngineHttpUATest12(void) +{ + uint8_t http_buf[] = "CONNECT /index.html HTTP/1.0\r\n" + "User-Agent: CONNECT\r\n" + "Host: www.onetwothreefourfivesixseven.org\r\n\r\n"; + uint32_t http_len = sizeof(http_buf) - 1; + return DetectEngineHttpUATest(http_buf, http_len, + "alert http any any -> any any " + "(msg:\"http_user_agent test\"; " + "content:\"CO\"; http_user_agent; " + "content:\"EC\"; within:3; http_user_agent; " + "sid:1;)", + false); +} + +static int DetectEngineHttpUATest13(void) +{ + uint8_t http_buf[] = "CONNECT /index.html HTTP/1.0\r\n" + "User-Agent: CONNECT\r\n" + "Host: www.onetwothreefourfivesixseven.org\r\n\r\n"; + uint32_t http_len = sizeof(http_buf) - 1; + return DetectEngineHttpUATest(http_buf, http_len, + "alert http any any -> any any " + "(msg:\"http user agent test\"; " + "content:\"CO\"; http_user_agent; " + "content:!\"EC\"; within:4; http_user_agent; " + "sid:1;)", + false); +} + +static int DetectEngineHttpUATest14(void) +{ + uint8_t http_buf[] = "CONNECT /index.html HTTP/1.0\r\n" + "User-Agent: CONNECT\r\n" + "Host: www.onetwothreefourfivesixseven.org\r\n\r\n"; + uint32_t http_len = sizeof(http_buf) - 1; + return DetectEngineHttpUATest(http_buf, http_len, + "alert http any any -> any any " + "(msg:\"http_user_agent test\"; " + "content:\"CO\"; http_user_agent; " + "content:\"EC\"; distance:2; http_user_agent; " + "sid:1;)", + true); +} + +static int DetectEngineHttpUATest15(void) +{ + uint8_t http_buf[] = "CONNECT /index.html HTTP/1.0\r\n" + "User-Agent: CONNECT\r\n" + "Host: www.onetwothreefourfivesixseven.org\r\n\r\n"; + uint32_t http_len = sizeof(http_buf) - 1; + return DetectEngineHttpUATest(http_buf, http_len, + "alert http any any -> any any " + "(msg:\"http user agent test\"; " + "content:\"CO\"; http_user_agent; " + "content:!\"EC\"; distance:3; http_user_agent; " + "sid:1;)", + true); +} + +static int DetectEngineHttpUATest16(void) +{ + uint8_t http_buf[] = "CONNECT /index.html HTTP/1.0\r\n" + "User-Agent: CONNECT\r\n" + "Host: www.onetwothreefourfivesixseven.org\r\n\r\n"; + uint32_t http_len = sizeof(http_buf) - 1; + return DetectEngineHttpUATest(http_buf, http_len, + "alert http any any -> any any " + "(msg:\"http user agent test\"; " + "content:\"CO\"; http_user_agent; " + "content:\"EC\"; distance:3; http_user_agent; " + "sid:1;)", + false); +} + +static int DetectEngineHttpUATest17(void) +{ + uint8_t http_buf[] = "CONNECT /index.html HTTP/1.0\r\n" + "User-Agent: CONNECT\r\n" + "Host: www.onetwothreefourfivesixseven.org\r\n\r\n"; + uint32_t http_len = sizeof(http_buf) - 1; + return DetectEngineHttpUATest(http_buf, http_len, + "alert http any any -> any any " + "(msg:\"http_user_agent test\"; " + "content:\"CO\"; http_user_agent; " + "content:!\"EC\"; distance:2; http_user_agent; " + "sid:1;)", + false); +} + +static int DetectHttpUATestSigParse(const char *sig, const bool expect) +{ + DetectEngineCtx *de_ctx = DetectEngineCtxInit(); + FAIL_IF_NULL(de_ctx); + de_ctx->flags |= DE_QUIET; + + Signature *s = DetectEngineAppendSig(de_ctx, sig); + bool parsed = (s != NULL); + FAIL_IF_NOT(parsed == expect); + DetectEngineCtxFree(de_ctx); + PASS; +} + +/** + * \test Test that a signature containing a http_user_agent is correctly parsed + * and the keyword is registered. + */ +static int DetectHttpUATest01(void) +{ + return DetectHttpUATestSigParse("alert tcp any any -> any any " + "(msg:\"Testing http_user_agent\"; " + "content:\"one\"; http_user_agent; sid:1;)", + true); +} + +/** + * \test Test that a signature containing an valid http_user_agent entry is + * parsed. + */ +static int DetectHttpUATest02(void) +{ + return DetectHttpUATestSigParse("alert tcp any any -> any any " + "(msg:\"Testing http_user_agent\"; " + "content:\"one\"; http_user_agent:; sid:1;)", + true); +} + +/** + * \test Test that an invalid signature containing no content but a + * http_user_agent is invalidated. + */ +static int DetectHttpUATest03(void) +{ + return DetectHttpUATestSigParse("alert tcp any any -> any any " + "(msg:\"Testing http_user_agent\"; " + "http_user_agent; sid:1;)", + false); +} + +/** + * \test Test that an invalid signature containing a rawbytes along with a + * http_user_agent is invalidated. + */ +static int DetectHttpUATest04(void) +{ + return DetectHttpUATestSigParse("alert tcp any any -> any any " + "(msg:\"Testing http_user_agent\"; " + "content:\"one\"; rawbytes; http_user_agent; sid:1;)", + false); +} + +/** + * \test Test that a http_user_agent with nocase is parsed. + */ +static int DetectHttpUATest05(void) +{ + return DetectHttpUATestSigParse("alert tcp any any -> any any " + "(msg:\"Testing http_user_agent\"; " + "content:\"one\"; http_user_agent; nocase; sid:1;)", + true); +} + +/** + *\test Test that the http_user_agent content matches against a http request + * which holds the content. + */ +static int DetectHttpUATest06(void) +{ + TcpSession ssn; + ThreadVars th_v; + DetectEngineThreadCtx *det_ctx = NULL; + Flow f; + uint8_t http_buf[] = + "GET /index.html HTTP/1.0\r\n" + "Host: www.openinfosecfoundation.org\r\n" + "User-Agent: This is dummy message body\r\n" + "Content-Type: text/html\r\n" + "\r\n"; + uint32_t http_len = sizeof(http_buf) - 1; + AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc(); + + memset(&th_v, 0, sizeof(th_v)); + memset(&f, 0, sizeof(f)); + memset(&ssn, 0, sizeof(ssn)); + + Packet *p = UTHBuildPacket(NULL, 0, IPPROTO_TCP); + FAIL_IF_NULL(p); + + FLOW_INITIALIZE(&f); + f.protoctx = (void *)&ssn; + f.proto = IPPROTO_TCP; + f.flags |= FLOW_IPV4; + + p->flow = &f; + p->flowflags |= FLOW_PKT_TOSERVER; + p->flowflags |= FLOW_PKT_ESTABLISHED; + p->flags |= PKT_HAS_FLOW | PKT_STREAM_EST; + f.alproto = ALPROTO_HTTP1; + + StreamTcpInitConfig(true); + + DetectEngineCtx *de_ctx = DetectEngineCtxInit(); + FAIL_IF_NULL(de_ctx); + de_ctx->flags |= DE_QUIET; + + Signature *s = DetectEngineAppendSig(de_ctx, "alert http any any -> any any " + "(msg:\"http user agent test\"; " + "content:\"message\"; http_user_agent; " + "sid:1;)"); + FAIL_IF_NULL(s); + + SigGroupBuild(de_ctx); + DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); + + int r = AppLayerParserParse( + NULL, alp_tctx, &f, ALPROTO_HTTP1, STREAM_TOSERVER, http_buf, http_len); + FAIL_IF_NOT(r == 0); + FAIL_IF_NULL(f.alstate); + + /* do detect */ + SigMatchSignatures(&th_v, de_ctx, det_ctx, p); + + FAIL_IF_NOT(PacketAlertCheck(p, 1)); + + AppLayerParserThreadCtxFree(alp_tctx); + DetectEngineCtxFree(de_ctx); + + StreamTcpFreeConfig(true); + FLOW_DESTROY(&f); + UTHFreePackets(&p, 1); + PASS; +} + +/** + *\test Test that the http_user_agent content matches against a http request + * which holds the content. + */ +static int DetectHttpUATest07(void) +{ + TcpSession ssn; + Packet *p1 = NULL; + Packet *p2 = NULL; + ThreadVars th_v; + DetectEngineThreadCtx *det_ctx = NULL; + Flow f; + uint8_t http1_buf[] = + "GET /index.html HTTP/1.0\r\n" + "Host: www.openinfosecfoundation.org\r\n" + "User-Agent: This is dummy message"; + uint8_t http2_buf[] = + "body1\r\n\r\n"; + uint32_t http1_len = sizeof(http1_buf) - 1; + uint32_t http2_len = sizeof(http2_buf) - 1; + AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc(); + + memset(&th_v, 0, sizeof(th_v)); + memset(&f, 0, sizeof(f)); + memset(&ssn, 0, sizeof(ssn)); + + p1 = UTHBuildPacket(NULL, 0, IPPROTO_TCP); + p2 = UTHBuildPacket(NULL, 0, IPPROTO_TCP); + + FLOW_INITIALIZE(&f); + f.protoctx = (void *)&ssn; + f.proto = IPPROTO_TCP; + f.flags |= FLOW_IPV4; + + p1->flow = &f; + p1->flowflags |= FLOW_PKT_TOSERVER; + p1->flowflags |= FLOW_PKT_ESTABLISHED; + p1->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; + p2->flow = &f; + p2->flowflags |= FLOW_PKT_TOSERVER; + p2->flowflags |= FLOW_PKT_ESTABLISHED; + p2->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; + f.alproto = ALPROTO_HTTP1; + + StreamTcpInitConfig(true); + + DetectEngineCtx *de_ctx = DetectEngineCtxInit(); + FAIL_IF_NULL(de_ctx); + de_ctx->flags |= DE_QUIET; + + Signature *s = DetectEngineAppendSig(de_ctx, "alert http any any -> any any " + "(msg:\"http user agent test\"; " + "content:\"message\"; http_user_agent; " + "sid:1;)"); + FAIL_IF_NULL(s); + + SigGroupBuild(de_ctx); + DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); + + int r = AppLayerParserParse( + NULL, alp_tctx, &f, ALPROTO_HTTP1, STREAM_TOSERVER, http1_buf, http1_len); + FAIL_IF_NOT(r == 0); + FAIL_IF_NULL(f.alstate); + + /* do detect */ + SigMatchSignatures(&th_v, de_ctx, det_ctx, p1); + + FAIL_IF(PacketAlertCheck(p1, 1)); + + r = AppLayerParserParse( + NULL, alp_tctx, &f, ALPROTO_HTTP1, STREAM_TOSERVER, http2_buf, http2_len); + FAIL_IF_NOT(r == 0); + FAIL_IF_NULL(f.alstate); + + /* do detect */ + SigMatchSignatures(&th_v, de_ctx, det_ctx, p2); + FAIL_IF_NOT(PacketAlertCheck(p2, 1)); + + AppLayerParserThreadCtxFree(alp_tctx); + DetectEngineCtxFree(de_ctx); + + StreamTcpFreeConfig(true); + FLOW_DESTROY(&f); + UTHFreePackets(&p1, 1); + UTHFreePackets(&p2, 1); + PASS; +} + +/** + *\test Test that the http_user_agent content matches against a http request + * which holds the content. + */ +static int DetectHttpUATest08(void) +{ + TcpSession ssn; + Packet *p1 = NULL; + Packet *p2 = NULL; + ThreadVars th_v; + DetectEngineThreadCtx *det_ctx = NULL; + Flow f; + uint8_t http1_buf[] = + "GET /index.html HTTP/1.0\r\n" + "Host: www.openinfosecfoundation.org\r\n" + "User-Agent: This is dummy mess"; + uint8_t http2_buf[] = + "age body\r\n\r\n"; + uint32_t http1_len = sizeof(http1_buf) - 1; + uint32_t http2_len = sizeof(http2_buf) - 1; + AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc(); + + memset(&th_v, 0, sizeof(th_v)); + memset(&f, 0, sizeof(f)); + memset(&ssn, 0, sizeof(ssn)); + + p1 = UTHBuildPacket(NULL, 0, IPPROTO_TCP); + p2 = UTHBuildPacket(NULL, 0, IPPROTO_TCP); + + FLOW_INITIALIZE(&f); + f.protoctx = (void *)&ssn; + f.proto = IPPROTO_TCP; + f.flags |= FLOW_IPV4; + + p1->flow = &f; + p1->flowflags |= FLOW_PKT_TOSERVER; + p1->flowflags |= FLOW_PKT_ESTABLISHED; + p1->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; + p2->flow = &f; + p2->flowflags |= FLOW_PKT_TOSERVER; + p2->flowflags |= FLOW_PKT_ESTABLISHED; + p2->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; + f.alproto = ALPROTO_HTTP1; + + StreamTcpInitConfig(true); + + DetectEngineCtx *de_ctx = DetectEngineCtxInit(); + FAIL_IF_NULL(de_ctx); + de_ctx->flags |= DE_QUIET; + + Signature *s = DetectEngineAppendSig(de_ctx, "alert http any any -> any any " + "(msg:\"http user agent test\"; " + "content:\"message\"; http_user_agent; " + "sid:1;)"); + FAIL_IF_NULL(s); + + SigGroupBuild(de_ctx); + DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); + + int r = AppLayerParserParse( + NULL, alp_tctx, &f, ALPROTO_HTTP1, STREAM_TOSERVER, http1_buf, http1_len); + FAIL_IF_NOT(r == 0); + FAIL_IF_NULL(f.alstate); + + /* do detect */ + SigMatchSignatures(&th_v, de_ctx, det_ctx, p1); + FAIL_IF(PacketAlertCheck(p1, 1)); + + r = AppLayerParserParse( + NULL, alp_tctx, &f, ALPROTO_HTTP1, STREAM_TOSERVER, http2_buf, http2_len); + FAIL_IF_NOT(r == 0); + FAIL_IF_NULL(f.alstate); + + /* do detect */ + SigMatchSignatures(&th_v, de_ctx, det_ctx, p2); + + FAIL_IF_NOT(PacketAlertCheck(p2, 1)); + + AppLayerParserThreadCtxFree(alp_tctx); + DetectEngineCtxFree(de_ctx); + + StreamTcpFreeConfig(true); + FLOW_DESTROY(&f); + UTHFreePackets(&p1, 1); + UTHFreePackets(&p2, 1); + PASS; +} + +/** + *\test Test that the http_user_agent content matches against a http request + * which holds the content, against a cross boundary present pattern. + */ +static int DetectHttpUATest09(void) +{ + TcpSession ssn; + Packet *p1 = NULL; + Packet *p2 = NULL; + ThreadVars th_v; + DetectEngineThreadCtx *det_ctx = NULL; + Flow f; + uint8_t http1_buf[] = + "GET /index.html HTTP/1.0\r\n" + "Host: www.openinfosecfoundation.org\r\n" + "User-Agent: This is dummy body1"; + uint8_t http2_buf[] = + "This is dummy message body2\r\n" + "Content-Type: text/html\r\n" + "Content-Length: 46\r\n" + "\r\n" + "This is dummy body1"; + uint32_t http1_len = sizeof(http1_buf) - 1; + uint32_t http2_len = sizeof(http2_buf) - 1; + AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc(); + + memset(&th_v, 0, sizeof(th_v)); + memset(&f, 0, sizeof(f)); + memset(&ssn, 0, sizeof(ssn)); + + p1 = UTHBuildPacket(NULL, 0, IPPROTO_TCP); + p2 = UTHBuildPacket(NULL, 0, IPPROTO_TCP); + + FLOW_INITIALIZE(&f); + f.protoctx = (void *)&ssn; + f.proto = IPPROTO_TCP; + f.flags |= FLOW_IPV4; + + p1->flow = &f; + p1->flowflags |= FLOW_PKT_TOSERVER; + p1->flowflags |= FLOW_PKT_ESTABLISHED; + p1->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; + p2->flow = &f; + p2->flowflags |= FLOW_PKT_TOSERVER; + p2->flowflags |= FLOW_PKT_ESTABLISHED; + p2->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; + f.alproto = ALPROTO_HTTP1; + + StreamTcpInitConfig(true); + + DetectEngineCtx *de_ctx = DetectEngineCtxInit(); + FAIL_IF_NULL(de_ctx); + de_ctx->flags |= DE_QUIET; + + Signature *s = DetectEngineAppendSig(de_ctx, "alert http any any -> any any " + "(msg:\"http user agent test\"; " + "content:\"body1This\"; http_user_agent; " + "sid:1;)"); + FAIL_IF_NULL(s); + + SigGroupBuild(de_ctx); + DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); + + int r = AppLayerParserParse( + NULL, alp_tctx, &f, ALPROTO_HTTP1, STREAM_TOSERVER, http1_buf, http1_len); + FAIL_IF_NOT(r == 0); + FAIL_IF_NULL(f.alstate); + + /* do detect */ + SigMatchSignatures(&th_v, de_ctx, det_ctx, p1); + FAIL_IF(PacketAlertCheck(p1, 1)); + + r = AppLayerParserParse( + NULL, alp_tctx, &f, ALPROTO_HTTP1, STREAM_TOSERVER, http2_buf, http2_len); + FAIL_IF_NOT(r == 0); + FAIL_IF_NULL(f.alstate); + + /* do detect */ + SigMatchSignatures(&th_v, de_ctx, det_ctx, p2); + + FAIL_IF_NOT(PacketAlertCheck(p2, 1)); + + AppLayerParserThreadCtxFree(alp_tctx); + DetectEngineCtxFree(de_ctx); + StreamTcpFreeConfig(true); + FLOW_DESTROY(&f); + UTHFreePackets(&p1, 1); + UTHFreePackets(&p2, 1); + PASS; +} + +/** + *\test Test that the http_user_agent content matches against a http request + * against a case insensitive pattern. + */ +static int DetectHttpUATest10(void) +{ + TcpSession ssn; + Packet *p1 = NULL; + Packet *p2 = NULL; + ThreadVars th_v; + DetectEngineThreadCtx *det_ctx = NULL; + Flow f; + uint8_t http1_buf[] = + "GET /index.html HTTP/1.0\r\n" + "Host: www.openinfosecfoundation.org\r\n" + "User-Agent: This is dummy bodY1"; + uint8_t http2_buf[] = + "This is dummy message body2\r\n" + "Content-Type: text/html\r\n" + "Content-Length: 46\r\n" + "\r\n" + "This is dummy bodY1"; + uint32_t http1_len = sizeof(http1_buf) - 1; + uint32_t http2_len = sizeof(http2_buf) - 1; + AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc(); + + memset(&th_v, 0, sizeof(th_v)); + memset(&f, 0, sizeof(f)); + memset(&ssn, 0, sizeof(ssn)); + + p1 = UTHBuildPacket(NULL, 0, IPPROTO_TCP); + p2 = UTHBuildPacket(NULL, 0, IPPROTO_TCP); + + FLOW_INITIALIZE(&f); + f.protoctx = (void *)&ssn; + f.proto = IPPROTO_TCP; + f.flags |= FLOW_IPV4; + + p1->flow = &f; + p1->flowflags |= FLOW_PKT_TOSERVER; + p1->flowflags |= FLOW_PKT_ESTABLISHED; + p1->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; + p2->flow = &f; + p2->flowflags |= FLOW_PKT_TOSERVER; + p2->flowflags |= FLOW_PKT_ESTABLISHED; + p2->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; + f.alproto = ALPROTO_HTTP1; + + StreamTcpInitConfig(true); + + DetectEngineCtx *de_ctx = DetectEngineCtxInit(); + FAIL_IF_NULL(de_ctx); + de_ctx->flags |= DE_QUIET; + + Signature *s = DetectEngineAppendSig(de_ctx, "alert http any any -> any any " + "(msg:\"http user agent test\"; " + "content:\"body1this\"; http_user_agent; nocase;" + "sid:1;)"); + FAIL_IF_NULL(s); + + SigGroupBuild(de_ctx); + DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); + + int r = AppLayerParserParse( + NULL, alp_tctx, &f, ALPROTO_HTTP1, STREAM_TOSERVER, http1_buf, http1_len); + FAIL_IF_NOT(r == 0); + FAIL_IF_NULL(f.alstate); + + /* do detect */ + SigMatchSignatures(&th_v, de_ctx, det_ctx, p1); + FAIL_IF(PacketAlertCheck(p1, 1)); + + r = AppLayerParserParse( + NULL, alp_tctx, &f, ALPROTO_HTTP1, STREAM_TOSERVER, http2_buf, http2_len); + FAIL_IF_NOT(r == 0); + FAIL_IF_NULL(f.alstate); + + /* do detect */ + SigMatchSignatures(&th_v, de_ctx, det_ctx, p2); + FAIL_IF_NOT(PacketAlertCheck(p2, 1)); + + AppLayerParserThreadCtxFree(alp_tctx); + DetectEngineCtxFree(de_ctx); + StreamTcpFreeConfig(true); + FLOW_DESTROY(&f); + UTHFreePackets(&p1, 1); + UTHFreePackets(&p2, 1); + PASS; +} + +/** + *\test Test that the negated http_user_agent content matches against a + * http request which doesn't hold the content. + */ +static int DetectHttpUATest11(void) +{ + TcpSession ssn; + Packet *p = NULL; + ThreadVars th_v; + DetectEngineThreadCtx *det_ctx = NULL; + Flow f; + uint8_t http_buf[] = + "GET /index.html HTTP/1.0\r\n" + "Host: www.openinfosecfoundation.org\r\n" + "User-Agent: This is dummy message body\r\n" + "Content-Type: text/html\r\n" + "\r\n"; + uint32_t http_len = sizeof(http_buf) - 1; + AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc(); + + memset(&th_v, 0, sizeof(th_v)); + memset(&f, 0, sizeof(f)); + memset(&ssn, 0, sizeof(ssn)); + + p = UTHBuildPacket(NULL, 0, IPPROTO_TCP); + + FLOW_INITIALIZE(&f); + f.protoctx = (void *)&ssn; + f.proto = IPPROTO_TCP; + f.flags |= FLOW_IPV4; + + p->flow = &f; + p->flowflags |= FLOW_PKT_TOSERVER; + p->flowflags |= FLOW_PKT_ESTABLISHED; + p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; + f.alproto = ALPROTO_HTTP1; + + StreamTcpInitConfig(true); + + DetectEngineCtx *de_ctx = DetectEngineCtxInit(); + FAIL_IF_NULL(de_ctx); + de_ctx->flags |= DE_QUIET; + + Signature *s = DetectEngineAppendSig(de_ctx, "alert http any any -> any any " + "(msg:\"http user agent test\"; " + "content:!\"message\"; http_user_agent; " + "sid:1;)"); + FAIL_IF_NULL(s); + + SigGroupBuild(de_ctx); + DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); + + int r = AppLayerParserParse( + NULL, alp_tctx, &f, ALPROTO_HTTP1, STREAM_TOSERVER, http_buf, http_len); + FAIL_IF_NOT(r == 0); + FAIL_IF_NULL(f.alstate); + + /* do detect */ + SigMatchSignatures(&th_v, de_ctx, det_ctx, p); + + FAIL_IF(PacketAlertCheck(p, 1)); + + AppLayerParserThreadCtxFree(alp_tctx); + DetectEngineCtxFree(de_ctx); + StreamTcpFreeConfig(true); + FLOW_DESTROY(&f); + UTHFreePackets(&p, 1); + PASS; +} + +/** + *\test Negative test that the negated http_user_agent content matches against a + * http request which holds hold the content. + */ +static int DetectHttpUATest12(void) +{ + TcpSession ssn; + Packet *p = NULL; + ThreadVars th_v; + DetectEngineThreadCtx *det_ctx = NULL; + Flow f; + uint8_t http_buf[] = + "GET /index.html HTTP/1.0\r\n" + "Host: www.openinfosecfoundation.org\r\n" + "User-Agent: This is dummy body\r\n" + "\r\n"; + uint32_t http_len = sizeof(http_buf) - 1; + AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc(); + + memset(&th_v, 0, sizeof(th_v)); + memset(&f, 0, sizeof(f)); + memset(&ssn, 0, sizeof(ssn)); + + p = UTHBuildPacket(NULL, 0, IPPROTO_TCP); + + FLOW_INITIALIZE(&f); + f.protoctx = (void *)&ssn; + f.proto = IPPROTO_TCP; + f.flags |= FLOW_IPV4; + + p->flow = &f; + p->flowflags |= FLOW_PKT_TOSERVER; + p->flowflags |= FLOW_PKT_ESTABLISHED; + p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; + f.alproto = ALPROTO_HTTP1; + + StreamTcpInitConfig(true); + + DetectEngineCtx *de_ctx = DetectEngineCtxInit(); + FAIL_IF_NULL(de_ctx); + de_ctx->flags |= DE_QUIET; + + Signature *s = DetectEngineAppendSig(de_ctx, "alert http any any -> any any " + "(msg:\"http user agent test\"; " + "content:!\"message\"; http_user_agent; " + "sid:1;)"); + FAIL_IF_NULL(s); + + SigGroupBuild(de_ctx); + DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); + + int r = AppLayerParserParse( + NULL, alp_tctx, &f, ALPROTO_HTTP1, STREAM_TOSERVER, http_buf, http_len); + FAIL_IF_NOT(r == 0); + FAIL_IF_NULL(f.alstate); + + /* do detect */ + SigMatchSignatures(&th_v, de_ctx, det_ctx, p); + FAIL_IF_NOT(PacketAlertCheck(p, 1)); + + AppLayerParserThreadCtxFree(alp_tctx); + DetectEngineCtxFree(de_ctx); + + StreamTcpFreeConfig(true); + FLOW_DESTROY(&f); + UTHFreePackets(&p, 1); + PASS; +} + +/** + * \test Test that the http_user_agent content matches against a http request + * which holds the content. + */ +static int DetectHttpUATest13(void) +{ + TcpSession ssn; + Packet *p = NULL; + ThreadVars th_v; + DetectEngineThreadCtx *det_ctx = NULL; + Flow f; + uint8_t http_buf[] = + "GET /index.html HTTP/1.0\r\n" + "Host: www.openinfosecfoundation.org\r\n" + "User-Agent: longbufferabcdefghijklmnopqrstuvwxyz0123456789bufferend\r\n" + "Content-Type: text/html\r\n" + "\r\n"; + uint32_t http_len = sizeof(http_buf) - 1; + AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc(); + + memset(&th_v, 0, sizeof(th_v)); + memset(&f, 0, sizeof(f)); + memset(&ssn, 0, sizeof(ssn)); + + p = UTHBuildPacket(NULL, 0, IPPROTO_TCP); + + FLOW_INITIALIZE(&f); + f.protoctx = (void *)&ssn; + f.proto = IPPROTO_TCP; + f.flags |= FLOW_IPV4; + + p->flow = &f; + p->flowflags |= FLOW_PKT_TOSERVER; + p->flowflags |= FLOW_PKT_ESTABLISHED; + p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; + f.alproto = ALPROTO_HTTP1; + + StreamTcpInitConfig(true); + + DetectEngineCtx *de_ctx = DetectEngineCtxInit(); + FAIL_IF_NULL(de_ctx); + de_ctx->flags |= DE_QUIET; + + Signature *s = DetectEngineAppendSig(de_ctx, + "alert http any any -> any any " + "(msg:\"http user agent test\"; " + "content:\"abcdefghijklmnopqrstuvwxyz0123456789\"; http_user_agent; " + "sid:1;)"); + FAIL_IF_NULL(s); + + SigGroupBuild(de_ctx); + DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); + + int r = AppLayerParserParse( + NULL, alp_tctx, &f, ALPROTO_HTTP1, STREAM_TOSERVER, http_buf, http_len); + FAIL_IF_NOT(r == 0); + FAIL_IF_NULL(f.alstate); + + /* do detect */ + SigMatchSignatures(&th_v, de_ctx, det_ctx, p); + + FAIL_IF_NOT(PacketAlertCheck(p, 1)); + + AppLayerParserThreadCtxFree(alp_tctx); + DetectEngineCtxFree(de_ctx); + StreamTcpFreeConfig(true); + FLOW_DESTROY(&f); + UTHFreePackets(&p, 1); + PASS; +} + +/** + * \test multiple http transactions and body chunks of request handling + */ +static int DetectHttpUATest14(void) +{ + Signature *s = NULL; + DetectEngineThreadCtx *det_ctx = NULL; + ThreadVars th_v; + Flow f; + TcpSession ssn; + Packet *p = NULL; + uint8_t httpbuf1[] = "POST / HTTP/1.1\r\n"; + uint8_t httpbuf2[] = "Cookie: dummy1\r\n"; + uint8_t httpbuf3[] = "User-Agent: Body one!!\r\n\r\n"; + uint32_t httplen1 = sizeof(httpbuf1) - 1; /* minus the \0 */ + uint32_t httplen2 = sizeof(httpbuf2) - 1; /* minus the \0 */ + uint32_t httplen3 = sizeof(httpbuf3) - 1; /* minus the \0 */ + uint8_t httpbuf4[] = "GET /?var=val HTTP/1.1\r\n"; + uint8_t httpbuf5[] = "Cookie: dummy2\r\n"; + uint8_t httpbuf6[] = "User-Agent: Body two\r\n\r\n"; + uint32_t httplen4 = sizeof(httpbuf4) - 1; /* minus the \0 */ + uint32_t httplen5 = sizeof(httpbuf5) - 1; /* minus the \0 */ + uint32_t httplen6 = sizeof(httpbuf6) - 1; /* minus the \0 */ + AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc(); + + memset(&th_v, 0, sizeof(th_v)); + memset(&f, 0, sizeof(f)); + memset(&ssn, 0, sizeof(ssn)); + + p = UTHBuildPacket(NULL, 0, IPPROTO_TCP); + + FLOW_INITIALIZE(&f); + f.protoctx = (void *)&ssn; + f.proto = IPPROTO_TCP; + f.flags |= FLOW_IPV4; + + p->flow = &f; + p->flowflags |= FLOW_PKT_TOSERVER; + p->flowflags |= FLOW_PKT_ESTABLISHED; + p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; + f.alproto = ALPROTO_HTTP1; + + StreamTcpInitConfig(true); + + DetectEngineCtx *de_ctx = DetectEngineCtxInit(); + FAIL_IF_NULL(de_ctx); + de_ctx->flags |= DE_QUIET; + + s = DetectEngineAppendSig(de_ctx, "alert tcp any any -> any any (content:\"POST\"; http_method; content:\"dummy1\"; http_cookie; content:\"Body one\"; http_user_agent; sid:1; rev:1;)"); + FAIL_IF_NULL(s); + s = DetectEngineAppendSig(de_ctx, "alert tcp any any -> any any (content:\"GET\"; http_method; content:\"dummy2\"; http_cookie; content:\"Body two\"; http_user_agent; sid:2; rev:1;)"); + FAIL_IF_NULL(s); + + SigGroupBuild(de_ctx); + DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); + + int r = AppLayerParserParse( + NULL, alp_tctx, &f, ALPROTO_HTTP1, STREAM_TOSERVER, httpbuf1, httplen1); + FAIL_IF_NOT(r == 0); + + /* do detect */ + SigMatchSignatures(&th_v, de_ctx, det_ctx, p); + FAIL_IF(PacketAlertCheck(p, 1)); + + r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_HTTP1, STREAM_TOSERVER, httpbuf2, httplen2); + FAIL_IF_NOT(r == 0); + + /* do detect */ + SigMatchSignatures(&th_v, de_ctx, det_ctx, p); + FAIL_IF(PacketAlertCheck(p, 1)); + + r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_HTTP1, STREAM_TOSERVER, httpbuf3, httplen3); + FAIL_IF_NOT(r == 0); + + /* do detect */ + SigMatchSignatures(&th_v, de_ctx, det_ctx, p); + FAIL_IF_NOT(PacketAlertCheck(p, 1)); + p->alerts.cnt = 0; + + r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_HTTP1, STREAM_TOSERVER, httpbuf4, httplen4); + FAIL_IF_NOT(r == 0); + + /* do detect */ + SigMatchSignatures(&th_v, de_ctx, det_ctx, p); + FAIL_IF(PacketAlertCheck(p, 1)); + FAIL_IF(PacketAlertCheck(p, 2)); + + r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_HTTP1, STREAM_TOSERVER, httpbuf5, httplen5); + FAIL_IF_NOT(r == 0); + + /* do detect */ + SigMatchSignatures(&th_v, de_ctx, det_ctx, p); + FAIL_IF(PacketAlertCheck(p, 1)); + FAIL_IF(PacketAlertCheck(p, 2)); + + SCLogDebug("sending data chunk 7"); + + r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_HTTP1, STREAM_TOSERVER, httpbuf6, httplen6); + FAIL_IF_NOT(r == 0); + + /* do detect */ + SigMatchSignatures(&th_v, de_ctx, det_ctx, p); + FAIL_IF(PacketAlertCheck(p, 1)); + FAIL_IF_NOT(PacketAlertCheck(p, 2)); + p->alerts.cnt = 0; + + HtpState *htp_state = f.alstate; + FAIL_IF_NULL(htp_state); + FAIL_IF_NOT(AppLayerParserGetTxCnt(&f, htp_state) == 2); + + AppLayerParserThreadCtxFree(alp_tctx); + DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx); + DetectEngineCtxFree(de_ctx); + + StreamTcpFreeConfig(true); + FLOW_DESTROY(&f); + UTHFreePacket(p); + PASS; +} + +static void DetectHttpUARegisterTests(void) +{ + UtRegisterTest("DetectEngineHttpUATest01", DetectEngineHttpUATest01); + UtRegisterTest("DetectEngineHttpUATest02", DetectEngineHttpUATest02); + UtRegisterTest("DetectEngineHttpUATest03", DetectEngineHttpUATest03); + UtRegisterTest("DetectEngineHttpUATest04", DetectEngineHttpUATest04); + UtRegisterTest("DetectEngineHttpUATest05", DetectEngineHttpUATest05); + UtRegisterTest("DetectEngineHttpUATest06", DetectEngineHttpUATest06); + UtRegisterTest("DetectEngineHttpUATest07", DetectEngineHttpUATest07); + UtRegisterTest("DetectEngineHttpUATest08", DetectEngineHttpUATest08); + UtRegisterTest("DetectEngineHttpUATest09", DetectEngineHttpUATest09); + UtRegisterTest("DetectEngineHttpUATest10", DetectEngineHttpUATest10); + UtRegisterTest("DetectEngineHttpUATest11", DetectEngineHttpUATest11); + UtRegisterTest("DetectEngineHttpUATest12", DetectEngineHttpUATest12); + UtRegisterTest("DetectEngineHttpUATest13", DetectEngineHttpUATest13); + UtRegisterTest("DetectEngineHttpUATest14", DetectEngineHttpUATest14); + UtRegisterTest("DetectEngineHttpUATest15", DetectEngineHttpUATest15); + UtRegisterTest("DetectEngineHttpUATest16", DetectEngineHttpUATest16); + UtRegisterTest("DetectEngineHttpUATest17", DetectEngineHttpUATest17); + + UtRegisterTest("DetectHttpUATest01", DetectHttpUATest01); + UtRegisterTest("DetectHttpUATest02", DetectHttpUATest02); + UtRegisterTest("DetectHttpUATest03", DetectHttpUATest03); + UtRegisterTest("DetectHttpUATest04", DetectHttpUATest04); + UtRegisterTest("DetectHttpUATest05", DetectHttpUATest05); + UtRegisterTest("DetectHttpUATest06", DetectHttpUATest06); + UtRegisterTest("DetectHttpUATest07", DetectHttpUATest07); + UtRegisterTest("DetectHttpUATest08", DetectHttpUATest08); + UtRegisterTest("DetectHttpUATest09", DetectHttpUATest09); + UtRegisterTest("DetectHttpUATest10", DetectHttpUATest10); + UtRegisterTest("DetectHttpUATest11", DetectHttpUATest11); + UtRegisterTest("DetectHttpUATest12", DetectHttpUATest12); + UtRegisterTest("DetectHttpUATest13", DetectHttpUATest13); + UtRegisterTest("DetectHttpUATest14", DetectHttpUATest14); +} + +/** + * @} + */ |