search menu icon-carat-right cmu-wordmark

CERT Coordination Center

Sun Java System Portal Server fails to properly handle changes to display options

Vulnerability Note VU#881254

Original Release Date: 2004-07-23 | Last Revised: 2004-07-23


There is a vulnerability in the Sun Java System Portal Server, which could allow a remote, authenticated user to gain access to the administrative credentials of the Calendar server.


The Sun Java System Portal Server is a content management system that provides centralized login capabilities and administration. The Calendar Server is an optional product that can be used by the portal server to provide users the ability to collaboratively manage schedules and share resources. A vulnerability exists in the way changes to the display options are handled by the Sun Java System Portal Server. By changing the display options to a non-default view, a user could gain access to the administrative credentials on the Calendar Server.

According to the Sun Security Alert, this vulnerability only occurs if the following two conditions are true:

    • Admin Proxy Authentication is configured on the Calendar Server
    • Calendar access is via the "Portal" communication channel and not the "Unified Web Client" or the "Calendar Web Client"
Note: This issue only affects the calendar component. The calendar configuration information is not affected.


A remote, authenticated user could gain access to the administrative credentials of the Calendar server.


Apply Patch
Sun has released an advisory which addresses this issue. For more information on patches available for your system, please refer to Sun Security Alert: 57586.

Restrict Access
Sun recommends that you not allow end users the ability to edit the calendar channels "calendar" or "view" display profile properties when Admin Proxy Authentication is enabled.

Vendor Information


Sun Microsystems Inc. Affected

Updated:  July 23, 2004



Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.


Please refer to Sun Security Alert ID: 57586.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

CVSS Metrics

Group Score Vector



This vulnerability was reported by Sun Microsystems.

This document was written by Damon Morda.

Other Information

CVE IDs: None
Severity Metric: 1.31
Date Public: 2004-07-21
Date First Published: 2004-07-23
Date Last Updated: 2004-07-23 15:13 UTC
Document Revision: 17

Sponsored by CISA.