H - Security Labs
    Falt4 CMS (RC4 10.9.2007) Security Report /Advisory
    ID : HSEC#20071012

General Information
--------------------------
Name                           : Falt4Extreme CMS (RC4 10.9.2007)
Vendor HomePage       :http://sourceforge.net/projects/falt4/
Platforms                     : PHP && MySQL
Vulnerability Type       : Input Validation Errors
Disclosure Timeline
-------------------------
04 December  2007  -- Vendor Contacted 
04 December  2007  -- Vendor Replied
05 December  2007  -- Fix Released 
10 December  2007  -- Pulic Disclosure

What is Falt4Extreme
------------------------
Falt4 CMS is a business approved Content Management System (CMS) under the LGPL. The CMS is feature-rich and has a clean administration area. The ultimate CMS with functions for the professional, usable by everyone.CMS modules are available.
Overview of Vulnerabilities
------------------------
The script is vulnerable to both of XSS and Blind SQL Injection attacks.
Details of Vulnerabilities
------------------------
1-Blind SQL Injection Vulnerability:
http://www.EXAMPLE.com/falt4/
index.php?handler=cat&nav_ID=1'%20and%20'1'='1
nav_ID parameter is not sanitized properly and can be used for Blind SQL Injection attacks.
2-Cross Site Scripting Vulnerabilities
i.http://www.EXAMPLE.com/falt4/
index.php?handler=>"><script>alert(3)</script>&nav_ID=1
Input passed to the 'handler' parameter is not sanitized properly before using and can be used by malicious people to perform XSS attacks.
ii .http://www.EXAMPLE.com/falt4/
modules/feed/feed.php?type=rss&lang=1&topic=>"><script>alert(2)</script>
Input passed to the 'topic' parameter is not sanitized properly before using and can be used by malicious people to perform XSS attacks.
Solution
-----------------------
Re-download falt4 from sourceforge:
http://downloads.sourceforge.net/falt4/falt4extreme.zip?use_mirror=osdn
Replace these files:
/yourfalt4/index.php
/yourfalt4/modules/feed.php
/yourfalt4/admin/index.php
-----------------------
The vulnerabilities found on 04 December 2007
by Mesut Timur <mesut@h-labs.org>
H - Security Labs , http://www.h-labs.org
Gebze Institue of Technology, Computer Engineering, http://www.gyte.edu.tr
References
-----------------------
Vendor Confirmation : http://sourceforge.net/forum/forum.php?forum_id=762931
Original Advisory        : http://www.h-labs.org/blog/2007/12/05/falt4_cms_security_report_advisory.html
http://sourceforge.net/projects/falt4/
http://www.h-labs.org