__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN "in.rwhod" Daemon Vulnerability [Sun Security Alert ID: 57659] December 7, 2004 18:00 GMT Number P-050 ______________________________________________________________________________ PROBLEM: A vulnerability was found in in.rwhod, a system status server. It is the server that maintains the database used by rwho(1) and ruptime(1) programs. It is not enabled by default. PLATFORM: SPARC Platform Solaris 7 without patch 118239-01 Solaris 8 without patch 116984-01 Solaris 9 without patch 117455-01 x86 Platform Solaris 7 without patch 118240-01 Solaris 8 without patch 116985-01 Solaris 9 without patch 117456-01 DAMAGE: A remote privileged attacker may execute arbitrary code when the in.rwhod(1M) daemon is enabled on the system. SOLUTION: Apply available security updates. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. A remote privileged attacker may gain root ASSESSMENT: privileges. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/p-050.shtml ORIGINAL BULLETIN: http://www.sunsolve.sun.com/search/document.do?assetkey= 1-26-57659-1&searchclause=%22category:security%22 ______________________________________________________________________________ [***** Start Sun Security Alert ID: 57659 *****] Sun(sm) Alert Notification Sun Alert ID: 57659 Synopsis: Security Vulnerability in the in.rwhod(1M) Daemon Category: Security Product: Solaris BugIDs: 4705157 Avoidance: Patch State: Resolved Date Released: 06-Dec-2004 Date Closed: 06-Dec-2004 Date Modified: 1. Impact A security vulnerability in the in.rwhod(1M) daemon may allow a remote privileged user to execute arbitrary code with "root" privileges when the in.rwhod(1M) daemon is enabled on the system. Note: in.rwhod(1M) is not enabled by default. 2. Contributing Factors This issue can occur in the following releases: SPARC Platform Solaris 7 without patch 118239-01 Solaris 8 without patch 116984-01 Solaris 9 without patch 117455-01 x86 Platform Solaris 7 without patch 118240-01 Solaris 8 without patch 116985-01 Solaris 9 without patch 117456-01 A system is only vulnerable to this issue if the in.rwhod(1M) daemon is enabled. This can be determined by using the pgrep(1) command which will only generate output if the daemon is enabled, as in the following example: $ pgrep -lf in.rwhod 17157 /usr/sbin/in.rwhod -m 3. Symptoms There are no predictable symptoms that would indicate the described issue has occurred. Solution Summary Top 4. Relief/Workaround To work around the described issue, in.rwhod(1M) can be disabled by running the following command: # pkill in.rwhod 5. Resolution This issue is addressed in the following releases: SPARC Platform Solaris 7 with patch 118239-01 or later Solaris 8 with patch 116984-01 or later Solaris 9 with patch 117455-01 or later x86 Platform Solaris 7 with patch 118240-01 or later Solaris 8 with patch 116985-01 or later Solaris 9 with patch 117456-01 or later 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 Security Alert ID: 57659 *****] _______________________________________________________________________________ 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-040: Security Vulnerability with Java Plug-in in JRE/SDK P-041: F-Secure Zip Archive Bypasses Scanning P-042: Sudo Missing Input Santising P-043: "cyrus-imapd" Buffer Overflow P-044: Samba - Arbitrary File Access Vulnerability P-045: Sun Security Vulnerability in Ping(1M) P-046: Microsoft Cumulative Security Update for Internet Explorer P-047: Red Hat Updated Kernel Packages P-048: HP Ignite-UX Vulnerability P-049: Apple Security Update 2004-12-02