Title:
======
Facebook NYClubs - Multiple Web Vulnerabilities


Date:
=====
2012-02-17


References:
===========
http://www.vulnerability-lab.com/get_content.php?id=440


VL-ID:
=====
440


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

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

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 multiple web vulnerabilities on the 3rd party web application - Facebook NYClubs (apps.facebook.com).


Report-Timeline:
================
2012-02-15:  Vendor Notification
2012-02-16:  Vendor Response/Feedback
2012-02-16:  Developer Notification by Facebook Security
2012-02-17:  Public or Non-Public Disclosure


Status:
========
Published


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


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


Details:
========
1.1
A remote SQL Injection Vulnerability is detected on the Facebook NYClubs application (apps.facebook).
The vulnerability allows an attacker (remote) to inject/execute own sql statements on the affected fb application dbms.
Successful exploitation can result in a stable application, service or dbms compromise.

Vulnerable Application(s): 
                                  [+] NYClubs - Facebook 3rd Party Application

Vulnerable Module(s): 
                                  [+] Messagebox


Affected Service(s): 
                                  [+] apps.facebook.com/nyclubs/


--- Exception/Error Logs ---
INSERT INTO reviews (club_id, ip, name, fbid, location, email, rating, content, active, approved) VALUES (652,`121.112.203.222 ` 
Sven R-m,100001940496405,`x014831@gmail.com`,10,`>` iiiiiiiii-(Rated 9/10)

Picture(s):
                                  ../1.png



1.2
A client side Cross Site Scripting Vulnerability is detected on the Facebook NYClubs application (apps.facebook).
The vulnerability allows an attacker (remote) to hijack sessions & manipulate client-side application requests with 
high required user inter action.

Vulnerable Module(s): 
                                  [+] ?r=sregion&d=


Picture(s):
                                  ../2.png


Proof of Concept:
=================
The vulnerabilities can be exploited with & without high required user inter action. For demonstration or 

reproduce ...

1.1
Vulnerable:  [MessageBox Input] ---> Include a frame to the local app website & extract the error log

Tables:   club_id, ip, name, fbid, location, email, rating, content, active, approved
IP:    121.112.203.222
NAME:    Sven R-m
Mail:    x014831@gmail.com
Limit:    10--
Type:    Order by Injection


Reference(s):
                                  ../652.htm


1.2
http://apps.facebook.com/nyclubs/?r=sregion&d=%3Ciframe%20src=http://vulnerability-lab.com

%20width=750%20height=700%3E


Reference(s):
                                  ../NYClubs on Facebook.htm


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


Credits:
========
Vulnerability Research Laboratory -   N/A   Anonymous


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-
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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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