SecWorm.net - Advisory http://SecWorm.net/ Steam XSS Vulnerability ---------------------------------------------------------------------------------- 1. Advisory Information: ---------------------------------------------------------------------------------- Title:- Cross Site Scripting vulnerability in Scribd.com Advisory ID:- SecWorm_Network_2009-3 Advisory URL:- http://secworm.net/showthread.php?tid=87 ---------------------------------------------------------------------------------- 2. Vulnerability Information: ---------------------------------------------------------------------------------- Class:- Cross Site Scripting Injection Remotely Exploitable:- Yes Locally Exploitable:- Yes FIXED :- NO ---------------------------------------------------------------------------------- 3. Vulnerability Description: ---------------------------------------------------------------------------------- In the search function of Scribd.com, html entities are not sanitized properly, thus it allows any javascript to be executed in it. This causes a non-persistent XSS vulnerability in the search function of Scribd.com. An attacker can inject malicious javascript into the search function which could be used for several types of attacks. An attacker can also hijack the cookies of any user which will compromise the authentication. ---------------------------------------------------------------------------------- 4. POC [Proof of Concept]: ---------------------------------------------------------------------------------- Example:- http://www.scribd.com/search?cat=solr&q=...Fscript> Screenshot:- : http://secworm.net/poc/scribd-xss.jpg ---------------------------------------------------------------------------------- 5. Credits: This vulnerability was discovered by Nishant Soni (brainst0rm) from SecWorm Network. ---------------------------------------------------------------------------------- 6. Report Timeline: ---------------------------------------------------------------------------------- December 29, 2009- Nishant Soni from SecWorm Network leaves an Email to Scribd.com Site feedback. Reply awaited. ---------------------------------------------------------------------------------- 7. About SecWorm Network: ---------------------------------------------------------------------------------- SecWorm Network is a group of Security Researchers & Ethical hackers with the motto of security awareness and helping others to secure themselves. Everyone can reach to us at http://www.SecWorm.net/ ---------------------------------------------------------------------------------- 8. Disclaimer & Copyright: ---------------------------------------------------------------------------------- The contents of this advisory are copyright © 2009 SecWorm Network, and may be distributed freely provided that proper credits are given.
