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             AUSCERT External Security Bulletin Redistribution

                    ESB-2005.0962 -- [Win][*nix][Linux]
       Security Vulnerabilities in the Java Runtime Environment May
            Allow an Untrusted Applet to Elevate Its Privileges
                              6 December 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:            Execute Arbitrary Code/Commands
                   Increased Privileges
Access:            Remote/Unauthenticated

Original Bulletin: http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-26-102003-1

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Sun(sm) Alert Notification
     * Sun Alert ID: 102003
     * Synopsis: Security Vulnerabilities in the Java Runtime Environment
       May Allow an Untrusted Applet to Elevate Its Privileges
     * Category: Security
     * Product: Java 2 Platform, Standard Edition
     * BugIDs: 6263857, 6277266, 6277659
     * Avoidance: Upgrade
     * State: Resolved
     * Date Released: 28-Nov-2005
     * Date Closed: 28-Nov-2005
     * Date Modified: 

1. Impact

   Three (3) security vulnerabilities with the use of "reflection" APIs
   in the Java Runtime Environment (JRE) may (independently) allow an
   untrusted applet to elevate its privileges. For example, an untrusted
   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 these issues
   to our attention.

2. Contributing Factors

   The first issue can occur in the following releases (for Windows,
   Solaris and Linux):
     * SDK and JRE 1.3.1_15 and earlier
     * SDK and JRE 1.4.2_08 and earlier
     * JDK and JRE 5.0 Update 3 and earlier

   The second and third issues can occur in the following releases (for
   Windows, Solaris and Linux):
     * SDK and JRE 1.4.2_08 and earlier
     * JDK and JRE 5.0 Update 3 and earlier

   Note: SDK and JRE 1.3.1_xx and earlier are not affected for the second
   and third issues.

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

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

   For Windows:

   Click "Start" on the desktop menu

   Select "Run" from the menu panel

   Type "cmd" and click "OK"

   At the prompt, type "java -fullversion"

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

3. Symptoms

   There are no reliable symptoms that would indicate the described
   issues have been exploited. 

4. Relief/Workaround

   There is no workaround for this issue. Please see the Resolution
   section below.

5. Resolution

   The first issue is addressed in the following releases:
     * SDK and JRE 1.3.1_16 and later
     * SDK and JRE 1.4.2_09 and later
     * JDK and JRE 5.0 Update 4 and later

   The second and third issues are addressed in the following releases:
     * SDK and JRE 1.4.2_09 and later
     * JDK and JRE 5.0 Update 4 and later

   J2SE 1.4.2 is available for download at
   http://java.sun.com/j2se/1.4.2/download.html

   J2SE 5.0 is available for download at
   http://java.sun.com/j2se/1.5.0/download.jsp

   and at http://java.com

   Note: It is recommended that affected versions be removed from your
   system. For more information, please 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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