TITLE:
phpBB Knowledge Base Mod File Inclusion Vulnerability

SECUNIA ADVISORY ID:
SA19892

VERIFY ADVISORY:
http://secunia.com/advisories/19892/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
Knowledge Base Mod 2.x (module for phpBB)
http://secunia.com/product/9638/

DESCRIPTION:
[Oo] has discovered a vulnerability Knowledge Base Mod for phpBB,
which can be exploited by malicious people to compromise a vulnerable
system.

Input passed to the "module_root_path" parameter in
/includes/kb_constants.php isn't properly verified, before it is used
to include files. This can be exploited to include arbitrary files
from external and local resources.

Successful exploitation requires that "register_globals" is enabled.

The vulnerability has been confirmed in version 2.0.2. Other versions
may also be affected.

SOLUTION:
Edit the source code to ensure that input is properly sanitised.

PROVIDED AND/OR DISCOVERED BY:
[Oo]

ORIGINAL ADVISORY:
http://milw0rm.com/exploits/1728

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