Facebook #26 - Bypass & Exception Redirect Vulnerability

Document Title:
===============
Facebook #26 - Bypass & Exception Redirect Vulnerability


References:
===========
http://www.vulnerability-lab.com/get_content.php?id=1484

Video View: https://www.youtube.com/watch?v=I65zFWF-pMg

Advisory: http://www.vulnerability-lab.com/get_content.php?id=1483



Release Date:
=============
2015-05-09


Vulnerability Laboratory ID (VL-ID):
====================================
1484


Common Vulnerability Scoring System:
====================================
5.6


Abstract Advisory Information:
==============================
The Vulnerability Laboratory Core Research Team discovered a filter bypass and open redirect web vulnerability in the official Facebook online-service framework.


Vulnerability Disclosure Timeline:
==================================
2015-05-09: Public Disclosure (Vulnerability Laboratory)


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


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

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


Severity Level:
===============
Medium


Technical Details & Description:
================================
The video demonstrates how to evade the filter validation of the message context that is delivered by a url link. The researcher demonstrates how to bypass 
the basic encoding by preparing a valid exception with unauthorized redirect.


Credits & Authors:
==================
Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri ([email protected]) [www.vulnerability-lab.com]


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