427BB Authentication Bypass Vulnerability

Bugtraq ID:	16178
Class:	Access Validation Error
CVE:
Remote:	Yes
Local:	No
Published:	Jan 09 2006 12:00AM
Updated:	Jan 09 2006 12:00AM
Credit:	Aliaksandr Hartsuyeu is credited with the discovery of this vulnerability.
Vulnerable:	427BB fourtwosevenbb 2.2.1 427BB fourtwosevenbb 2.2
Not Vulnerable:

427BB Authentication Bypass Vulnerability

427BB is prone to an authentication bypass vulnerability. This issue is due to a failure in the application to properly validate user-supplied data.

An attacker can exploit this issue to bypass the authentication mechanism and gain access to the affected application as an administrative user. This may facilitate a compromise of the underlying system; other attacks are also possible.

This issue affects version 2.2 and 2.2.1; other versions may also be vulnerable.

427BB Authentication Bypass Vulnerability

No exploit is required.

The following demonstrates cookie-data sufficient to exploit this issue:
username=admin;
authenticated=1;
usertype=admin;

427BB Authentication Bypass Vulnerability

Solution:
Currently we are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

427BB Authentication Bypass Vulnerability

References:

• 427BB Homepage (427BB)
  
• 427BB Multiple Vulnerabilities (Cookie-based Authentication Bypass, SQL Injectio (eVuln)
  
• 427BB Multiple Vulnerabilities (Cookie-based Authentication Bypass, SQL Injectio (eVuln)