Document Title:
===============
Facebook BBP - Session ID & CSRF Vulnerability


References:
===========
http://www.vulnerability-lab.com/get_content.php?id=1433

Video: https://www.youtube.com/watch?v=SAr2AGLrBkQ

Advisory: http://www.vulnerability-lab.com/get_content.php?id=1432

Vulnerability Magazine: http://magazine.vulnerability-db.com/?q=articles/2015/02/03/facebook-security-12500-bug-bounty-reward-security-researcher



Release Date:
=============
2015-02-03


Vulnerability Laboratory ID (VL-ID):
====================================
1433


Common Vulnerability Scoring System:
====================================
9.1


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


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


Severity Level:
===============
Critical


Technical Details & Description:
================================
The indepndent vulnerbaility researcher joe ballhis discovered a critical issue in the facebook framework in 2014. The issue has been discovered due to the 
participation in the official bug bounty program. The vulnerability allows to manipulate the comment id and legacy id session data.
The attacker tampers the session and intercept the vulnerable values to compromise the application. Result is that the attacker was able to delete any 
users comments or posts.
Facebook whitehat program rewards the researcher with 12.500$ bug bounty in 2014Q4. The release of the issue has been set to 2015 Q1.


Credits & Authors:
==================
Joe Balhis (https://www.facebook.com/joe.balhis)


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=========================
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