Facebook - Instagram Business Access Token Vulnerability

Document Title:
===============
Facebook - Instagram Business Access Token Vulnerability


References:
===========
https://www.vulnerability-lab.com/get_content.php?id=2152

URL: https://www.youtube.com/watch?v=tdLKRky1Da4

News & Press:
https://www.forbes.com/sites/richardwindsoreurope/2018/09/28/facebook-hack-shows-yet-another-facebook-move-fast-service-that-broke/#3569ddb17ed3
https://www.stern.de/panorama/weltgeschehen/news--facebook-muss-sicherheitsluecke-bei-50-millionen-konten-zugeben-8379228.html
https://www.heise.de/newsticker/meldung/Fast-50-Millionen-Facebook-Nutzer-von-Hacker-Angriff-betroffen-4178529.html
https://www.welt.de/wirtschaft/article181706120/Soziales-Netzwerk-Hacker-greifen-50-Millionen-Facebook-Nutzerkonten-an.html
https://www.merkur.de/wirtschaft/sicherheitsluecke-bei-facebook-50-millionen-nutzer-betroffen-zr-10284362.html
https://winfuture.de/news,105295.html
http://www.faz.net/aktuell/feuilleton/aus-dem-maschinenraum/facebook-hat-eine-gravierende-sicherheitsluecke-15814748.html



Release Date:
=============
2018-10-01


Vulnerability Laboratory ID (VL-ID):
====================================
2152


Common Vulnerability Scoring System:
====================================
9.3


Vulnerability Class:
====================
Privilege Escalation


Current Estimated Price:
========================
80.000€ - 100.000€


Vulnerability Disclosure Timeline:
==================================
2018-10-02: Public Disclosure (Vulnerability Laboratory)


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


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


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


Authentication Type:
====================
Restricted Authentication (Guest Privileges)


User Interaction:
=================
No User Interaction


Disclosure Type:
================
Full Disclosure


Technical Details & Description:
================================
The vulnerability was identified by Lawrence amer in a sub-function of the Facebook core services. Subsequently, vulnerability 
reporting by benjamin kunz mejri and lawrence amerikan was prepared for submission to the Facebook Whitehat program in 2017 Q3. 
Several times reported in 2017 Q3 & 2017 Q4 by the core Vulnerbaility Lab team. After several discussions, Facebook technicians 
were unable to understand the impact of the vulnerability, reliably assess the risks, and reproduce the vulnerabilities themselves. 
The reason was that there was a communication with Facebook that mainly excluded the agreement of facts from all parties involved. 
That's why they refused to pay our researchers a bug bounty. Then some international criminals probably found the same security 
problem and put over 50 million access token credentials at risk.


Credits & Authors:
==================
Lawrence Amer [[email protected]] - https://www.vulnerability-lab.com/show.php?user=Lawrence+Amer


Disclaimer & Information:
=========================
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 licenses, policies, deface websites, hack into databases or trade with stolen data.

Domains:    www.vulnerability-lab.com		www.vuln-lab.com				www.vulnerability-db.com
Services:   magazine.vulnerability-lab.com	paste.vulnerability-db.com 			infosec.vulnerability-db.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
Programs:   vulnerability-lab.com/submit.php 	vulnerability-lab.com/register.php  vulnerability-lab.com/list-of-bug-bounty-programs.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, modify, use or 
edit our material contact (admin@ or research@) to get a ask permission.

				    Copyright © 2018 | Vulnerability Laboratory - [Evolution Security GmbH]™