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TITLE:
WebCalendar "assistant_edit.php" Security Bypass

SECUNIA ADVISORY ID:
SA15788

VERIFY ADVISORY:
http://secunia.com/advisories/15788/

CRITICAL:
Less critical

IMPACT:
Security Bypass, Exposure of system information

WHERE:
>From remote

SOFTWARE:
WebCalendar 0.9.x
http://secunia.com/product/1901/

DESCRIPTION:
A security issue has been reported in WebCalendar, which can be
exploited by malicious people to bypass certain security
restrictions.

The problem is caused due to an error where the "assistant_edit.php"
script can be accessed without proper permissions. This can be
exploited to change assistants and display all users in the system
even when the "Public access can view other users" setting has been
disabled.

It is also possible to disclose the full path to "view_entry.php" by
accessing it directly.

SOLUTION:
Update to version 1.0.0.
http://www.k5n.us/webcalendar.php?topic=Download

PROVIDED AND/OR DISCOVERED BY:
Reported by vendor.

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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