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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2006.0601 -- [Win][Linux][Solaris] Java Plug-in and Java Web Start May Allow Applets and Applications to Run With Unpatched JRE 23 August 2006 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Java Plug-in 1.4.x (J2SE 5 Update 5 & prior) Java Plug-in 1.3.1(J2SE 5 Update 5 & prior) Java Plug-in 1.3.0_02 & later (J2SE 5 Update 5 & prior) Java Web Start 1.4.2 (J2SE 5 Update 5 & prior) Java Web Start 1.2 Java Web Start 1.0.2 Java Web Start 1.0.1 Java Web Start 1.0 Publisher: Sun Microsystems Operating System: Solaris Linux variants Windows Impact: Reduced Security Access: Remote/Unauthenticated Original Bulletin: http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-26-102557-1 Comment: This advisory references vulnerabilties in products which run on platforms other than Solaris. It is recommended that administrators running Java check for an updated version of the software for their operating system at: http://java.com - --------------------------BEGIN INCLUDED TEXT-------------------- Sun(sm) Alert Notification * Sun Alert ID: 102557 * Synopsis: Java Plug-in and Java Web Start May Allow Applets and Applications to Run With Unpatched JRE * Category: Security * Product: Java 2 Platform, Standard Edition * BugIDs: 6281384 * Avoidance: Patch, Upgrade, Workaround * State: Resolved * Date Released: 21-Aug-2006 * Date Closed: 21-Aug-2006 * Date Modified: 1. Impact The Java Plug-in and Java Web Start both allow applets and applications to specify the version of the Java Runtime Environment (JRE) to run with. However, the versions of Java Web Start and the Java Plug-in listed in Section 2 below may allow applets or applications to run with a specified version of the JRE that does not have the latest security fixes. 2. Contributing Factors This issue can occur in the following releases (for Solaris, Linux and Windows platforms): * Java Plug-in included with J2SE 5.0 Update 5 and earlier, 1.4.x, 1.3.1, and 1.3.0_02 and later * Java Web Start included with J2SE 5.0 Update 5 and earlier, and 1.4.2 * Java Web Start 1.2, 1.0.2, 1.0.1, and 1.0 To determine the default version of the JRE on a system for Solaris and Linux, the following command can be run: % java -version Note: The above command only determines the default version. Other versions may also be installed on the system. To determine the default version of the JRE on a system for Windows: 1. Click "Start" 2. Select "Run" 3. Type "cmd" (starts a command-line) 4. At the prompt, type "java -version" 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 indicate that a specific release of the JRE is being used if that specified release of the JRE is already installed on the system and accessible by the Java Plug-in or Java Web Start. If the specified release of the JRE is not already installed, the end user may be prompted to download a JRE. 4. Relief/Workaround To work around the described issue for the Java Plug-in on the Solaris and Linux platforms, use the latest JRE releases available from Sun and remove all symbolic links of earlier versions of Java Plug-in from the browser "plugins" directory. 5. Resolution This issue is addressed in the following J2SE releases: Java Plug-in: * Java Plug-in 5.0 Update 6 and later for Windows Notes: 1. Prior to 5.0 Update 6, an applet could specify the version of the JRE on which it would run. With 5.0 Update 6 and later installed on the Windows platform, all applets are executed with the latest version of the JRE. 2. For Solaris and Linux, please see the "Relief/Workaround" section above. Java Web Start: * Java Web Start 5.0 Update 6 and later for Windows, Solaris, and Linux Note: Prior to 5.0 Update 6, an application could specify the version of the JRE on which it would run. With 5.0 Update 6 and later installed, unsigned Java Web Start applications that specify a version other than the latest installed will trigger a warning, requiring explicit user permission before the application will run. Signed Java Web Start applications are not affected. J2SE 5.0 is available for download at the following links: * http://java.sun.com/j2se/1.5.0/download.jsp * http://java.com J2SE 5.0 for Solaris is available in the following patches: * J2SE 5.0: update 7 (as delivered in patch 118666-06) * J2SE 5.0: update 7 (as delivered in patch 118667-06 (64bit)) * J2SE 5.0_x86: update 7 (as delivered in patch 118668-06) * J2SE 5.0_x86: update 7 (as delivered in patch 118669-06 (64bit)) 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 2000-2006 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, CA 95054 U.S.A. All rights reserved - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: http://www.auscert.org.au/render.html?it=3192 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBROvQFyh9+71yA2DNAQLbdQP/TV8arS2IVlzhMzurbE24xDb+YKkbsvea KH0bCMsa1dhNHlCVgY+ZrVtDWwuTgw0ipdSdgXPqUyIAwlcF5/UT0GmorVuTxeCj IHh69W/7sk2ONyvU4Q2UXhykdAyxrNh4zlHnpBQXYis1pPpUZE4Orxx/5ilct0bQ IGvfH8bSWr4= =KUr+ -----END PGP SIGNATURE-----