__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN Sun Java System Web Proxy Server Vulnerability [Sun Alert ID: 57763] April 20, 2005 18:00 GMT Number P-187 ______________________________________________________________________________ PROBLEM: A buffer overflow vulnerability was discovered in Sun Java System Web Proxy Server (Formerly Sun ONE Proxy Server). PLATFORM: Sun Java System Web Proxy Server 3.6 Service Pack 6 DAMAGE: Exploiting this vulnerability may allow a remote unprivileged user to execute arbitrary code on the system running the Web Proxy Server with the privileges of the server process. Note that the default UID for the Web Proxy Server is "nobody", however, the administrator may have used a different UID from the default during installation or configuration. SOLUTION: Apply available security updates. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. A remote unprivileged user may execute ASSESSMENT: arbitrary code and cause the Web Proxy Server to crash. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/p-187.shtml ORIGINAL BULLETIN: http://www.sunsolve.sun.com/search/printfriendly.do? assetkey=1-26-57763-1 ______________________________________________________________________________ [***** Start Sun Alert ID: 57763 *****] Sun(sm) Alert Notification * Sun Alert ID: 57763 * Synopsis: Buffer Overflow Vulnerabilities in Sun Java System Web Proxy Server * Category: Security * Product: Sun Java System Web Proxy Server 3.6 Service Pack 6 * BugIDs: 5109863 * Avoidance: Upgrade * State: Resolved * Date Released: 19-Apr-2005 * Date Closed: 19-Apr-2005 * Date Modified: 1. Impact A buffer overflow vulnerability in the Sun Java System Web Proxy Server (Formerly Sun ONE Proxy Server) may allow a remote unprivileged user to execute arbitrary code on the system running the Web Proxy Server with the privileges of the server process. Note: The default UID for the Web Proxy Server is "nobody", however, the administrator may have used a different UID from the default during instalation or configuration. 2. Contributing Factors This issue can occur in the following releases for all platforms: * Sun Java System Web Proxy Server 3.6 Service Pack 6 and earlier Note: For supported architectures and OS versions see http://www.sun.com/software/products/web_proxy/home_web_proxy.xml 3. Symptoms The Web Proxy Server may crash if the described buffer overflow vulnerabilities have been exploited. Solution Summary Top 4. Relief/Workaround There is no workaround. Please see the "Resolution" section below. 5. Resolution This issue is addressed in the following release: * Sun Java System Web Proxy Server 3.6 Service Pack 7 and later which can be downloaded at http://www.sun.com/download/index.jsp under the "Web and Proxy Servers" selection. 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. [***** End Sun Alert ID: 57763 *****] _______________________________________________________________________________ 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. LAST 10 CIAC BULLETINS ISSUED (Previous bulletins available from CIAC) P-177: Vulnerabilities in TCP-IP (893066) P-178: Vulnerability in Message Queuing (892944) P-179: Vulnerability in Windows Shell (893086) P-180: Vulnerabilities in Windows Kernel (890859) P-181: Cisco Products Vulnerable to DoS via Crafted ICMP Messages P-182: Oracle Critical Patch Update - April 2005 P-183: The Sun ONE and JES Directory Server Contain a Buffer Overflow involving LDAP P-184: libexif P-185: Apple Mac OS X v10.3.9 Security Update P-186: Possible Network Port Theft in Solaris