Opera Website - Cross Site Scripting Vulnerability

🗓️ 23 Jan 2012 00:00:00Reported by Vulnerability Research Laboratory - Ucha Gobejishvili (longrifle0x)Type
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Opera Website - XSS Vulnerabilit
Document Title:
===============
Opera Website - Cross Site Scripting Vulnerability


References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=369


Release Date:
=============
2012-01-23


Vulnerability Laboratory ID (VL-ID):
====================================
369


Common Vulnerability Scoring System:
====================================
3.3


Product & Service Introduction:
===============================
Opera is a web browser and Internet suite developed by Opera Software with over 200 million users worldwide. The browser handles 
common Internet-related tasks such as displaying web sites, sending and receiving e-mail messages, managing contacts,
 chatting on IRC, downloading files via BitTorrent, and reading web feeds. Opera is offered free of charge for personal 
computers and mobile phones.

(Copy of the Vendor Homepage:  http://en.wikipedia.org/wiki/Opera_%28web_browser%29 )


Abstract Advisory Information:
==============================
The Vulnerability-Lab researcher discovered a non persistant cross site scripting vulnerability on the Opera website.


Vulnerability Disclosure Timeline:
==================================
2011-12-27:	Vendor Notification
2011-12-30:	Vendor Response/Feedback
2012-01-18:	Vendor Fix/Patch 
2012-01-24:	Public or Non-Public Disclosure


Discovery Status:
=================
Published


Affected Product(s):
====================

Exploitation Technique:
=======================
Remote


Severity Level:
===============
Low


Technical Details & Description:
================================
A non persistant cross site scripting vulnerability is detected on the Opera website. The vulnerability allows remote
attackers to hijack users sessions via cross site scripting. Successful exploitation of the client-side vulnerability 
can result in session hijacking & account steal.

Vulnerable Module(s):
                                                                  [+] ID

Picture(s):
                                                                  ../1.png


Proof of Concept (PoC):
=======================
The vulnerability can be exploited by remote attackers with user inter action. For demonstration or reproduce ...

PoC:
<html><head><body>
<title>client-side opera website vulnerability</title>
<iframe src=http://www.opera.com/download/get.pl?id=%22%3E%3Cscript%3Ealert%28document.cookie%29%3C/script%3E&id=&location=378&thanks=&sub=>
</body></head></html>


Solution - Fix & Patch:
=======================
Restrict & parse the vulnerable id request input & implement a new own exception-handling to prevent against future client-side web attacks.


Security Risk:
==============
The security risk of the persistent cross site scripting vulnerability is estimated as medium(-).


Credits & Authors:
==================
Vulnerability Research Laboratory -  Ucha Gobejishvili (longrifle0x)


Disclaimer & Information:
=========================
The information provided in this advisory is provided as it is without any warranty. Vulnerability-Lab disclaims all warranties, 
either expressed or implied, including the warranties of merchantability and capability for a particular purpose. Vulnerability-
Lab or its suppliers are not liable in any case of damage, including direct, indirect, incidental, consequential loss of business 
profits or special damages, even if Vulnerability-Lab or its suppliers have been advised of the possibility of such damages. Some 
states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation 
may not apply. We do not approve or encourage anybody to break any vendor licenses, policies, deface websites, hack into databases 
or trade with fraud/stolen material.

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    				   	Copyright © 2012 | Vulnerability Laboratory
23 Jan 2012 00:00Current
7.1High risk
Vulners AI Score7.1