Joomla com_fabrik - Remote File Upload Vulnerability

Document Title:
===============
Joomla com_fabrik - Remote File Upload Vulnerability



Release Date:
=============
2011-11-26


Vulnerability Laboratory ID (VL-ID):
====================================
342


Product & Service Introduction:
===============================
Joomla is a free and open source content management system (CMS) for publishing content on the World
Wide Web and intranets and a model–view–controller (MVC) Web application framework that can also be
used independently.
Joomla is written in PHP, uses object-oriented programming (OOP) techniques and software design
patterns, stores data in a MySQL database, and includes features such as page caching,
RSS feeds, printable versions of pages, news flashes, blogs, polls, search, and support for language
internationalization.
Joomla had been downloaded 23 million times. Between March 2007 and February 2011 there had been
more than 21 million downloads. As of November 2011, there are over 8,600 free and commercial
extensions available from the official Joomla! Extension Directory and more available from other sources.

(Copy of the Vendor Homepage: http://en.wikipedia.org/wiki/Joomla)


Abstract Advisory Information:
==============================
A Vulnerability-Lab researcher discovered a remote file upload vulnerability on the com_fabrik module of the joomla CMS.


Vulnerability Disclosure Timeline:
==================================
2011-11-26:	Public or Non-Public Disclosure


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


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


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


Technical Details & Description:
================================
A remote file upload vulnerability is detected on the the com_fabrik module of the joomla CMS, The bug allows an remote attacker 
to upload any file with any extension. Successful exploitation of the bug can lead to website & server compromise.

Vulnerable Module(s):
			                         	[+] com_fabrik

Vulnerable Param(s):
			                         	[+] import


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

PoC: 
http://<site>/<Joomla Installation Path>/ index.php?option=com_fabrik&c=import&view=import&filetype=csv&tableid=1

The uploaded file will be located here :
http://<site>/<Joomla Installation Path>/media/<uploaded_file>


Full: (reproduce)
http://geoinfo.uneca.org/ggim/index.php?option=com_fabrik&c=import&view=import&filetype=csv&tableid=1


Security Risk:
==============
The security risk of the remote file upload vulnerability is estimated as high(+).



Credits & Authors:
==================
Vulnerability Research Laboratory -  Ismail Kaleem


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