Document Title:
===============
Facebook Global Football - SQL Injection Vulnerability


References (Source):
====================
http://vulnerability-lab.com/get_content.php?id=339


Release Date:
=============
2011-12-22


Vulnerability Laboratory ID (VL-ID):
====================================
339


Common Vulnerability Scoring System:
====================================
7.5


Product & Service Introduction:
===============================
The application is currently included and viewable by all facebook users.
The service is an external 3rd party application called Global Football

(Vendors Homepage: http://apps.facebook.com/globalfootball/)

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 Advisory Information:
==============================
A Vulnerability-Lab researcher discovered a remote SQL Injection vulnerability on the 3rd party web application - Global Football (apps.facebook.com).


Vulnerability Disclosure Timeline:
==================================
2011-11-11:	Vendor Notification
2011-11-12:	Vendor Response/Feedback
2011-12-23:	Public or Non-Public Disclosure



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


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

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


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


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

Vulnerable Module(s): 
			                           [+] Global Football - Facebook 3rd Party Application

Vulnerable File(s): 
			                           [+] ?selliga=true&liga=18` (prob index.php)

Affected Application: 
			                           [+] http://apps.facebook.com/globalfootball/


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

URL:	apps.facebook.com
Path:	/globalfootball/
File:	?selliga=true&liga=18


Example:
http://[APP-SERVER]/[SERVICE-APP]/?=[x]


PoC:
http://apps.facebook.com/globalfootball/?selliga=true&liga=18'


Solution - Fix & Patch:
=======================
Use the prepared statement class to fix the sql injection vulnerability & filter sql error requests.
Set error(0) to prevent against information disclosure via exceptions or error reports.



Security Risk:
==============
The security risk of the application sql injection vulnerability is estimated as high(+).


Credits & Authors:
==================
Vulnerability Research Laboratory - Ucha Gobejishvili (longrifle0x) 


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