[SA19730] TotalCalendar "inc_dir" File Inclusion Vulnerability

TITLE:
TotalCalendar "inc_dir" File Inclusion Vulnerability

SECUNIA ADVISORY ID:
SA19730

VERIFY ADVISORY:
http://secunia.com/advisories/19730/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
TotalCalendar 2.x
http://secunia.com/product/9415/

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

Input passed to the "inc_dir" parameter in "about.php" and "auth.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.

Some other scripts may also be affected.

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

PROVIDED AND/OR DISCOVERED BY:
VietMafia

ORIGINAL ADVISORY:
http://pridels.blogspot.com/2006/04/totalcalendar-remote-code-execution.html

About:
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everybody keeping their systems up to date against the latest
vulnerabilities.

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