From: Secunia Security Advisories (sec-advsecunia.com)
Date: Thu Sep 28 2006 - 10:17:06 CDT

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TITLE:
Comdev Guestbook "path[docroot]" Parameter File Inclusion

SECUNIA ADVISORY ID:
SA22147

VERIFY ADVISORY:
http://secunia.com/advisories/22147/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
From remote

SOFTWARE:
Comdev Guestbook 3.x
http://secunia.com/product/12145/

DESCRIPTION:
rUnViRuS has reported a vulnerability in Comdev Guestbook, which can
be exploited by malicious people to compromise a vulnerable system.

Input passed to the "path[docroot]" parameter in include.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 reported in version 3.1. Other versions
may also be affected.

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

Set "register_globals" to "Off".

PROVIDED AND/OR DISCOVERED BY:
rUnViRuS

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