08 February 2012

[Bug] Facebook Profile Sticker SQL Injection


Bài viết liên quan:

Date: 2012-02-03

References: http://www.vulnerability-lab.com/get_content.php?id=409

VL-ID: 409


Introduction:

The application is currently included and viewable by all facebook users.
The service is an external 3rd party application sponsored by the Facebook Profile Sticker Development Team.

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

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 Profile Sticker (apps.facebook.com).


Report-Timeline:

2012-02-03: Public or Non-Public Disclosure

Status: Published


Exploitation-Technique:
Remote
Severity:

High

Details:

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

Vulnerable Module(s):
[+] Profile Sticker - Facebook 3rd Party Application

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

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

--- SQL Error Logs ---
Fatal error: Uncaught exception DbQueryFailure with message 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 -9 , 9 at line 1 SELECT * FROM stickers where active = 1 and user > 0 order by times_added desc limit -9 , 9 in var/www/html/profilestickers/lib/classes/Db.php:47
Stack trace: #0 /var/www/html/profilestickers/ajax_scripts/get_stickers.php(69): Db->query( SELECT * FROM s... ) #1
/var/www/html/profilestickers/index.php(297): include_once( /var/www/html/p... ) #2 {main} thrown in /var/www/html
/profilestickers/lib/classes/Db.php on line 47

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: /myprofilestickers/
File: index.php


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

PoC:
http://apps.facebook.com/myprofilestickers/index.php?page=-1'[SQL-Injection]

Risk:

The security risk of the application sql injection vulnerability is estimated as high.

Credits:
Vulnerability Research Laboratory - Benjamin Kunz Mejri

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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