Title:
======
Facebook Game Store - SQL Injection Vulnerability


Date:
=====
2012-02-04


References:
===========
http://www.vulnerability-lab.com/get_content.php?id=408


VL-ID:
=====
408


Introduction:
=============
The application is currently included and viewable by all facebook users.
The service is an external 3rd party application sponsored by the Facebook Game Store Development Team.

(Copy from the Vendors Homepage: http://apps.facebook.com/game_store/)

Facebook is a social networking service and website launched in February 2004, operated and privately owned 
by Facebook, Inc. As of July 2011, Facebook has more than 750 million active users. Users may create 
a personal profile, add other users as friends, and exchange messages, including automatic notifications when 
they update their profile. Facebook users must register before using the site. Additionally, users may join 
common-interest user groups, organized by workplace, school or college, or other characteristics. 

(Copy of the Vendor Website: http://en.wikipedia.org/wiki/Facebook)


Abstract:
=========
Vulnerability-Lab researcher discovered a remote SQL Injection vulnerability on the 3rd party web
application - Facebook Game Store (apps.facebook.com).


Report-Timeline:
================
2012-02-02:  Vendor Notification
2012-02-02:  Developer Notification
2012-02-04:  Public or Non-Public Disclosure


Status:
========
Published


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


Severity:
=========
High


Details:
========
A remote SQL Injection vulnerability is detected on the Facebook Game Store application (apps.facebook).
The vulnerability allows an attacker (remote) to inject/execute own sql statements on the affected fb application dbms.

Vulnerable Module(s): 
                                  [+] Game Store - Facebook 3rd Party Application

Vulnerable Param(s)/File(s): 
                                  [+] game_detail.php 


Affected Application: 
                                  [+] apps.facebook.com/game_store/


--- SQL Error Logs --- Heading Tabs
Facebook User  06 December 11 04:41:pm
user: test
--
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for 
the right syntax to use near / at line 1
  
    
Picture(s):
            ../1.png


Proof of Concept:
=================
The vulnerability can be exploited by remote attackers. For demonstration or reproduce ...

URL:  http://apps.facebook.com/
Path:  /game_store/
File:  game_detail.php


Example:
http://[APP-SERVER]/[SERVICE-APP]/[FILE].[PHP]?=[SQL Injection]


PoC:
http://apps.facebook.com/game_store/game_detail.php?gameid=13959[SQL-Injection]&Act=en[SQL-Injection]


Risk:
=====
The security risk of the application sql injection vulnerabilities are estimated as high(+).


Credits:
========
Vulnerability Research Laboratory - Benjamin Kunz Mejri (Rem0ve)


Disclaimer:
===========
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. Any modified copy or reproduction, including partially usages, of this file requires authorization from Vulnerability-
Lab. 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 or its suppliers.

                Copyright © 2012|Vulnerability-Lab




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