__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN Vulnerability in Java Runtime Environment Virtual Machine [Sun Alert ID: 103112] October 24, 2007 21:00 GMT Number S-028 ______________________________________________________________________________ PROBLEM: A vulnerability in the Virtual Machine of the Java Runtime Environment may allow an untrusted applet to elevate its privileges. PLATFORM: This issue can occur in the following releases (for Windows, Solaris, and Linux): JDK and JRE 6 Update 2 and earlier JDK and JRE 5.0 Update 12 and earlier SDK and JRE 1.4.2_15 and earlier SDK and JRE 1.3.1_20 and earlier DAMAGE: May allow an untrusted applet to elevate its privileges granting itself permissions to read and write local files or execute local applications that are accessible to the user running the untrusted applet. SOLUTION: Upgrade to the appropriate version. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. May allow an untrusted applet to elevate ASSESSMENT: its privileges granting itself permissions to read and write local files or execute local applications that are accessible to the user running the untrusted applet. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/s-028.shtml ORIGINAL BULLETIN: http://sunsolve.sun.com/search/document.do?assetkey=1-26-103112-1 ______________________________________________________________________________ [***** Start Sun Alert ID: 103112 *****] Sun(sm) Alert Notification Sun Alert ID: 103112 Synopsis: Vulnerability in Java Runtime Environment Virtual Machine May Allow Untrusted Application or Applet to Elevate Privileges Category: Security Product: Java 2 Platform, Standard Edition BugIDs: 6571539 Avoidance: Patch, Upgrade State: Resolved Date Released: 22-Oct-2007 Date Closed: 22-Oct-2007 Date Modified: 1. Impact A vulnerability in the Virtual Machine of the Java Runtime Environment 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, Azul Systems, Inc., 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 2 and earlier JDK and JRE 5.0 Update 12 and earlier SDK and JRE 1.4.2_15 and earlier SDK and JRE 1.3.1_20 and earlier To determine the default version of the JRE that Internet Explorer uses: Click "Tools" in the Menu Bar at the top of the browser Select "Sun Java Console" The first two lines in the console display the version of Java Plug-in and JRE that Internet Explorer uses. To determine the default version of the JRE that Mozilla or Firefox browsers use, visit the URL "about:plugins". The browser will display a page called "Installed plug-ins" which lists the version of the Java Plug-in: Java(TM) Plug-in 1.5.0_11-b03 The above example indicates that the version of the JRE that the browser uses is 1.5.0_11. 3. Symptoms There are no predictable symptoms that would indicate the issue described is being exploited. Solution Summary Top 4. Relief/Workaround There is no workaround for this issue. 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 3 or later JDK and JRE 5.0 Update 13 or later SDK and JRE 1.4.2_16 or later This issue is addressed in the following release for Windows and Solaris 8: SDK and JRE 1.3.1_21 or later JDK and JRE 6 Update 3 is available for download at the following links: http://java.sun.com/javase/downloads/index.jsp http://java.com JDK 6 Update 3 for Solaris is available in the following patches: Java SE 6 Update 3 (as delivered in patch 125136-04 or later) Java SE 6 Update 3 (as delivered in patch 125137-04 or later (64bit)) Java SE 6_x86 Update 3 (as delivered in patch 125138-04 or later) Java SE 6_x86 Update 3 (as delivered in patch 125139-04 or later (64bit)) JDK and JRE 5.0 Update 13 is available for download at the following link: http://java.sun.com/javase/downloads/index_jdk5.jsp JDK 5.0 Update 13 for Solaris is available in the following patches: J2SE 5.0 Update 13 (as delivered in patch 118666-14) J2SE 5.0 Update 13 (as delivered in patch 118667-14 (64bit)) J2SE 5.0_x86 Update 13 (as delivered in patch 118668-14) J2SE 5.0_x86 Update 13 (as delivered in patch 118669-14 (64bit)) SDK and JRE 1.4.2 is available for download at: http://java.sun.com/j2se/1.4.2/download.html SDK and JRE 1.3.1 for Solaris 8 is available for download at: http://java.sun.com/j2se/1.3/download.html SDK and JRE 1.3.1 has completed the Sun End of Life (EOL) process and is only supported for customers with Solaris 8 and Vintage Support Offering support contracts (see http://java.sun.com/j2se/1.3/download.html). Sun strongly recommends that users upgrade to the latest releases. 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. [***** End Sun Alert ID: 103112 *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Sun Microsystems for the information contained in this bulletin. _______________________________________________________________________________ CIAC, the Computer Incident Advisory Capability, is the computer security incident response team for the U.S. Department of Energy (DOE) and the emergency backup response team for the National Institutes of Health (NIH). CIAC is located at the Lawrence Livermore National Laboratory in Livermore, California. CIAC is also a founding member of FIRST, the Forum of Incident Response and Security Teams, a global organization established to foster cooperation and coordination among computer security teams worldwide. CIAC services are available to DOE, DOE contractors, and the NIH. CIAC can be contacted at: Voice: +1 925-422-8193 (7x24) FAX: +1 925-423-8002 STU-III: +1 925-423-2604 E-mail: ciac@ciac.org Previous CIAC notices, anti-virus software, and other information are available from the CIAC Computer Security Archive. World Wide Web: http://www.ciac.org/ Anonymous FTP: ftp.ciac.org PLEASE NOTE: Many users outside of the DOE, ESnet, and NIH computing communities receive CIAC bulletins. If you are not part of these communities, please contact your agency's response team to report incidents. Your agency's team will coordinate with CIAC. The Forum of Incident Response and Security Teams (FIRST) is a world-wide organization. A list of FIRST member organizations and their constituencies can be obtained via WWW at http://www.first.org/. This document was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor the University of California nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation or favoring by the United States Government or the University of California. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or the University of California, and shall not be used for advertising or product endorsement purposes. 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