Facebook Vulnerability Allows to Video-Call Mark Zuckerberg!

Have you ever desired to Video-Call the Founder of Facebook?
Well, with this Vulnerability it’s still possible!.

The following used vulnerability allows with a GET (In-URI) CSRF Parameter to avoid the Video-Calling blocks into Mark Zuckerberg Privacy Setting’s.

First let me introduce what a CSRF Vulnerability IS:

“A Cross-Site Request Forgery (CSRF) Vulnerability is a type of attack that occurs when a malicious Web site, email, blog, instant message, or program causes a user?s Web browser to perform an unwanted action on a trusted site for which the user is currently authenticated.” (*)

Now, Let’s start analyzing it!
First we start from this URL (like we are actually Video-Calling one of our Friends):


When we’ve identified the Vulnerable GET Parameter, we may apply it as below!


After the peer_id= parameter, we’ll insert Mark Zuckerberg ID (which is id=4)

So, definitely, the Complete URL, will look like this below:


Regarding this Bug, Facebook Security Team have not yet released a FIX, on the fact continuing to allow Attackers to use this flaw against the whole Social Community!.

Reference: OWASP CSRF Guide

SOURCE: http://cur.lv/hq8xd
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