LinkedIn Persistent Cross Site Scripting

`Title:  
======  
Linkedin Social Network - Persistent Web Vulnerability  
  
  
Date:  
=====  
2013-06-08  
  
  
References:  
===========  
http://www.vulnerability-lab.com/get_content.php?id=962  
  
Linkedin Security Ticket ID: 130429-005211  
  
  
VL-ID:  
=====  
962  
  
  
Common Vulnerability Scoring System:  
====================================  
3.8  
  
  
Introduction:  
=============  
LinkedIn is a social networking website for people in professional occupations. Founded in December 2002 and launched on May 5, 2003,   
it is mainly used for professional networking. As of January 2013, LinkedIn reports more than 200 million acquired users in more than   
200 countries and territories.  
  
The site is available in English, French, German, Italian, Portuguese, Spanish, Dutch, Swedish, Romanian, Russian, Turkish, Japanese,   
Czech, Polish, Korean, Indonesian, and Malay. Quantcast reports LinkedIn has 21.4 million monthly unique U.S. visitors and 47.6 million   
globally.[10] In June 2011, LinkedIn had 33.9 million unique visitors, up 63 percent from a year earlier and surpassing MySpace.   
LinkedIn filed for an initial public offering in January 2011 and traded its first shares on May 19, 2011, under the NYSE symbol \\\"LNKD\\\".  
  
(Copy of the Homepage: http://en.wikipedia.org/wiki/LinkedIn )  
  
  
Abstract:  
=========  
An independent Vulnerability Laboratory Researcher (Ismail Kaleem) discovered a persistent vulnerability in the Linkedin Social Network Community.  
  
  
Report-Timeline:  
================  
2013-04-28: Researcher Notification & Coordination  
2013-04-29: Vendor Notification  
2013-08-30: Vendor Response/Feedback  
2013-05-23: Vendor Fix/Patch  
2013-06-08: Public Disclosure  
  
  
Status:  
========  
Published  
  
  
Affected Products:  
==================  
Linkedin  
Product: Social Network Application 2013 Q2  
  
  
Exploitation-Technique:  
=======================  
Remote  
  
  
Severity:  
=========  
Medium  
  
  
Details:  
========  
A persistent script code injection web vulnerability is detected in the groups name add function of the linkedin social network application.  
The web-server does not use HTTP only cookies so it is possible for an attacker to hijackcookies or inject frames with malicious context or malware.  
  
  
  
Solution:  
=========  
2013-05-23: Vendor Fix/Patch  
  
  
Risk:  
=====  
The security risk of the persistent web vulnerability in the social network is estimated as medium(+).  
  
  
Credits:  
========  
Ismail Kaleem - Senior Security Developer | IT Security Department  
National Centre for Information Technology | Republic of Maldives  
  
  
Disclaimer:  
===========  
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.  
  
Domains: www.vulnerability-lab.com - www.vuln-lab.com - www.vulnerability-lab.com/register  
Contact: [email protected] - [email protected] - [email protected]  
Section: video.vulnerability-lab.com - forum.vulnerability-lab.com - news.vulnerability-lab.com  
Social: twitter.com/#!/vuln_lab - facebook.com/VulnerabilityLab - youtube.com/user/vulnerability0lab  
Feeds: vulnerability-lab.com/rss/rss.php - vulnerability-lab.com/rss/rss_upcoming.php - vulnerability-lab.com/rss/rss_news.php  
  
Any modified copy or reproduction, including partially usages, of this file requires authorization from Vulnerability Laboratory.   
Permission to electronically redistribute this alert in its unmodified form is granted. All other rights, including the use of other   
media, are reserved by Vulnerability-Lab Research Team or its suppliers. All pictures, texts, advisories, source code, videos and   
other information on this website is trademark of vulnerability-lab team & the specific authors or managers. To record, list (feed),   
modify, use or edit our material contact ([email protected] or [email protected]) to get a permission.  
  
Copyright © 2013 | Vulnerability Laboratory  
  
  
  
--   
VULNERABILITY RESEARCH LABORATORY  
LABORATORY RESEARCH TEAM  
CONTACT: [email protected]  
  
`