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             AUSCERT External Security Bulletin Redistribution

              ESB-2005.0951 -- Sun Alert Notification 102017
Security Vulnerability With Java Management Extensions in the Java Runtime
       Environment may Allow Untrusted Applet to Elevate Privileges
                             30 November 2005

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Java 2 Platform, Standard Edition
Publisher:         Sun Microsystems
Operating System:  Windows
                   UNIX variants
                   Linux variants
Impact:            Increased Privileges
Access:            Remote/Unauthenticated

Original Bulletin: http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-26-102017-1

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Sun(sm) Alert Notification
     * Sun Alert ID: 102017
     * Synopsis: Security Vulnerability With Java Management Extensions
       in the Java Runtime Environment may Allow Untrusted Applet to
       Elevate Privileges
     * Category: Security
     * Product: Java 2 Platform, Standard Edition
     * BugIDs: 6268876
     * Avoidance: Upgrade
     * State: Resolved
     * Date Released: 28-Nov-2005
     * Date Closed: 28-Nov-2005
     * Date Modified: 

1. Impact

   A vulnerability with the Java Management Extensions (JMX)
   implementation included with the Java Runtime Environment (JRE) may
   allow an untrusted applet to elevate its privileges. For example an
   applet may grant itself permissions to read and write local files or
   execute local applications that are accessible to the user running the
   untrusted applet.

   Sun acknowledges, with thanks, Adam Gowdiak, for bringing this issue
   to our attention.

2. Contributing Factors

   This issue can occur in the following releases:

   Java 2 Platform Standard Edition
     * JDK and JRE 5.0 Update 3 (for Windows, Solaris and Linux)or
       earlier

   Note: SDK and JRE 1.4.2_xx and earlier, and 1.3.1_xx and earlier are
   not affected. All Java Management Extensions (JMX) reference
   implementations and all releases of the Java Dynamic Management Kit
   (JDMK) are not affected by this issue.

   To determine the default version of the JRE on a system:

   for Windows:
    Click "Start"
    Select "Run"
    Type "cmd"
    At the prompt, type "java -fullversion"

   for Solaris and Linux:
    % java -fullversion
    java full version "1.5.0_02-b09"

   Note: The above command only determines the default version. Other
   versions may also be installed on the system.

3. Symptoms

   There are no reliable symptoms that would show the described issue has
   been exploited. 

4. Relief/Workaround

   There is no workaround. Please see Resolution section below.

5. Resolution

   This issue is addressed in the following releases:

   Java 2 Platform Standard Edition
     * JDK and JRE 5.0 Update 4 (for for Windows, Solaris, and Linux) or
       later

   J2SE 5.0 is available for download at the following links,
   http://java.sun.com/j2se/1.5.0/download.jsp and http://java.com.

   Note: It is recommended that affected versions be removed from your
   system. For more information, see the installation notes on the
   respective java.sun.com download pages.


   This Sun Alert notification is being provided to you on an "AS IS"
   basis. This Sun Alert notification may contain information provided by
   third parties. The issues described in this Sun Alert notification may
   or may not impact your system(s). Sun makes no representations,
   warranties, or guarantees as to the information contained herein. ANY
   AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
   WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
   NON-INFRINGEMENT, ARE HEREBY DISCLAIMED. BY ACCESSING THIS DOCUMENT
   YOU ACKNOWLEDGE THAT SUN SHALL IN NO EVENT BE LIABLE FOR ANY DIRECT,
   INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES THAT ARISE
   OUT OF YOUR USE OR FAILURE TO USE THE INFORMATION CONTAINED HEREIN.
   This Sun Alert notification contains Sun proprietary and confidential
   information. It is being provided to you pursuant to the provisions of
   your agreement to purchase services from Sun, or, if you do not have
   such an agreement, the Sun.com Terms of Use. This Sun Alert
   notification may only be used for the purposes contemplated by these
   agreements.

   Copyright 2000-2005 Sun Microsystems, Inc., 4150 Network Circle, Santa
   Clara, CA 95054 U.S.A. All rights reserved

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