__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN Sun Java System Web Proxy Server Buffer Overflow Vulnerability [Sun Alert ID: 57606] November 1, 2004 22:00 GMT Number P-027 ______________________________________________________________________________ PROBLEM: Buffer overflows may allow a remote unprivileged user to crash either the Web Proxy Server or the Admin Server (of the Web Proxy Server) or execute arbitrary code with the privileges of the respective server process. PLATFORM: Sun Java System Web Proxy Server 3.6 SP4 and earlier. DAMAGE: The recommended UIDs for the Web Proxy Server and Admin Server are "nobody" and "root" respectively. It may be possible for a remote unprivileged user to execute arbitrary code as "root". SOLUTION: Apply the available package updates. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. Best practices would have restricted access ASSESSMENT: to the Admin Server to only trusted users, and have the Web Proxy Server' UID set to "nobody". ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/p-027.shtml ORIGINAL BULLETIN: http://sunsolve.sun.com/search/document.do? assetkey=1-26-57606-1&searchclause=security ______________________________________________________________________________ [***** Start Sun Alert ID: 57606 *****] Document Audience: PUBLIC Document ID: 57606 Title: Document ID 57606 Synopsis: Buffer Overflow Vulnerabilities in Sun Java System Web Proxy Server Update Date: 2004-10-29 ----------------------------------------------------------------------------- Description Top Sun(sm) Alert Notification Sun Alert ID: 57606 Synopsis: Buffer Overflow Vulnerabilities in Sun Java System Web Proxy Server Category: Security Product: Sun Java System Web Proxy Server BugIDs: 4973815, 4973816 Avoidance: Upgrade State: Resolved Date Released: 29-Oct-2004 Date Closed: 29-Oct-2004 Date Modified: 1. Impact Buffer overflow vulnerabilities in the Sun Java System Web Proxy Server may allow a remote unprivileged user to crash either the Web Proxy Server or the Admin Server (of the Web Proxy Server) or execute arbitrary code with the privileges of the respective server processes. Note: The recommended UIDs for the Web Proxy Server and Admin Server are "nobody" and "root" respectively, at installation time. However, the administrator may have used different UIDs from the recommended ones during installation. Sun acknowledges with thanks, Matt Moore of Pentest Limited, for bringing these issues to our attention. 2. Contributing Factors These issues can occur in the following release on all platforms: Sun Java System Web Proxy Server 3.6 Service Pack 4 and earlier For supported architectures and OS versions see http://wwws.sun.com/software/download/products/4096ba15.html. 3. Symptoms There are no reliable symptoms that would indicate the described issues have been exploited to execute arbitrary code. The Web Proxy Server or Admin Server may crash if the buffer overflow vulnerabilities have been exploited. Solution 4. Relief/Workaround There is no workaround. Please see the "Resolution" section below. 5. Resolution These issues are addressed in the following release: Sun Java System Web Proxy Server 3.6 Service Pack 5 or later Sun Java System Web Server releases are available for download at http://wwws.sun.com/software/download/products/4149bc42.html. 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 2000-2004 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, CA 95054 U.S.A. All rights reserved. [***** End Sun Alert ID: 57606 *****] _______________________________________________________________________________ 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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