===================================================================== CERT-Renater Note d'Information No. 2007/VULN310 _____________________________________________________________________ DATE : 20/07/2007 HARDWARE PLATFORM(S) : / OPERATING SYSTEM(S) : Systems running Java 2 Platform, Standard Edition. ====================================================================== Sun(sm) Alert Notification * Sun Alert ID: 102995 * Synopsis: A Security Vulnerability in the Java Runtime Environment May Allow an Untrusted Applet to Circumvent Network Access Restrictions * Category: Security * Product: Java 2 Platform, Standard Edition * BugIDs: 6509141 * Avoidance: Patch, Upgrade * State: Resolved * Date Released: 18-Jul-2007 * Date Closed: 18-Jul-2007 * Date Modified: 1. Impact A security vulnerability in the Java Runtime Environment Applet Class Loader may allow an untrusted applet that is loaded from a remote system to circumvent network access restrictions and establish socket connections to certain services running on the local host, as if it were loaded from the system that the applet is running on. This may allow the untrusted remote applet the ability to exploit any security vulnerabilities existing in the services it has connected to. Sun acknowledges with thanks, John Heasman of NGSSoftware, for bringing this issue to our attention. 2. Contributing Factors This issue can occur in the following releases (for Windows, Solaris, and Linux): * JDK and JRE 6 Update 1 and earlier * JDK and JRE 5.0 Update 11 and earlier * SDK and JRE 1.4.2_14 and earlier 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 the described issue has been exploited to elevate privileges. 4. Relief/Workaround There is no workaround. Please see the "Resolution" section below. 5. Resolution This issue is addressed in the following releases (for Windows, Solaris, and Linux): * JDK and JRE 6 Update 2 or later * JDK and JRE 5.0 Update 12 or later * SDK and JRE 1.4.2_15 or later Java SE 6 Update 2 is available for download at: * http://java.sun.com/javase/downloads/index.jsp * http://java.com Java SE 6 Update 2 for Solaris is available in the following patches: * Java SE 6: update 2 (as delivered in patch 125136-02 or later) * Java SE 6: update 2 (as delivered in patch 125137-02 or later (64bit)) * Java SE 6_x86: update 2 (as delivered in patch 125138-02 or later) * Java SE 6_x86: update 2 (as delivered in patch 125139-02 or later (64bit)) Java SE 5.0 Update 12 is available for download at: * http://java.sun.com/javase/downloads/index_jdk5.jsp Java SE 5.0 Update 12 for Solaris is available in the following patches: * Java SE 5.0: update 12 (as delivered in patch 118666-12 or later) * Java SE 5.0: update 12 (as delivered in patch 118667-12 or later (64bit)) * Java SE 5.0_x86: update 12 (as delivered in patch 118668-12 or later) * Java SE 5.0_x86: update 12 (as delivered in patch 118669-12 or later (64bit)) SDK and JRE 1.4.2_15 is available for download at: http://java.sun.com/j2se/1.4.2/download.html Note: When installing a new version of the product from a source other than a Solaris patch, it is recommended that the old affected versions be removed from your system. To remove old affected versions on the Windows platform, please see: * http://java.com/en/download/help/uninstall_java.xml 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 ====================================================================== ========================================================= Les serveurs de référence du CERT-Renater http://www.urec.fr/securite http://www.cru.fr/securite http://www.renater.fr ========================================================= + CERT-RENATER | tel : 01-53-94-20-44 + + 151 bd de l'Hopital | fax : 01-53-94-20-41 + + 75013 Paris | email: certsvp@renater.fr + =========================================================