MyGuestbook user_modif.php Authentication Failure Vulnerability

BID:6911

Info

MyGuestbook user_modif.php Authentication Failure Vulnerability

Bugtraq ID: 6911
Class: Access Validation Error
CVE:
Remote: Yes
Local: No
Published: Feb 21 2003 12:00AM
Updated: Feb 21 2003 12:00AM
Credit: Discovery of this vulnerability has been credited to: "Frog Man" <[email protected]>.
Vulnerable: tefonline.net Myguestbook 3.0
Not Vulnerable:

Discussion

MyGuestbook user_modif.php Authentication Failure Vulnerability

It has been reported that in some cases MyGuestbook fails to validate the authenticity of a remote user before taking privileged actions.

The attacker may attain the ability to modify data contained in a guest book without the software sufficiently checking whether the operation is permitted for the user.

This vulnerability has been reported for MyGuestbook version 3.0, previous versions may also be affected.

Exploit / POC

MyGuestbook user_modif.php Authentication Failure Vulnerability

There is no exploit code required.

Solution / Fix

MyGuestbook user_modif.php Authentication Failure 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]>.

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