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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2007.0366 -- [Solaris] A Security Vulnerability in the Solaris 10 inetd(1M) Service May Lead to a Denial of Service (DoS) Condition 7 June 2007 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: inetd Publisher: Sun Microsystems Operating System: Solaris 10 Impact: Denial of Service Access: Remote/Unauthenticated CVE Names: CVE-2007-2990 Original Bulletin: http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-26-102921-1 Revision History: June 7 2007: Added CVE reference May 31 2007: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- Sun(sm) Alert Notification * Sun Alert ID: 102921 * Synopsis: A Security Vulnerability in the Solaris 10 inetd(1M) Service May Lead to a Denial of Service (DoS) Condition * Category: Security * Product: Solaris 10 Operating System * BugIDs: 6553649 * Avoidance: Patch * State: Resolved * Date Released: 29-May-2007 * Date Closed: 29-May-2007 * Date Modified: 1. Impact A security vulnerability in the inetd(1M) service may allow a local unprivileged user the ability to shut down the inetd daemon process, causing a Denial of Service (DoS) to all internet services managed by the inetd(1M) process on the system. 2. Contributing Factors This issue can occur in the following releases: SPARC Platform: * Solaris 10 without patch 121288-03 x86 Platform: * Solaris 10 without patch 121289-04 NOTE: Solaris 8 and 9 are not affected by this issue. This issue affects all Solaris 10 systems with the inetd service enabled (svc:/network/inetd:default). To determine if the inetd service is enabled on a system, the following command can be run: $ svcs inetd STATE STIME FMRI online 11:23:16 svc:/network/inetd:default If the command returns the state of the inetd service as 'online' (as in the above example) then the inetd service is enabled on the system. 3. Symptoms Repeated attempts by unprivileged users to stop the inetd server may transition the inetd service to the "maintenance" state, thereby moving all internet services managed by inetd(1M) to the "offline" state. To determine the state of the inetd service, the following command can be run: $ svcs inetd STATE STIME FMRI maintenance 12:00:23 svc:/network/inetd:default 4. Relief/Workaround To prevent this issue from occurring until the patches listed in section 5 can be applied, the Unix domain socket file "/var/run/.inetd.uds" may be deleted after the inetd server starts. If this file has been deleted, the following commands must be run (as 'root' user) to restart or disable the inetd service: To restart the inetd service: # pkill inetd To disable the inetd service: # svcadm disable inetd # pkill inetd 5. Resolution This issue is addressed in the following releases: SPARC Platform * Solaris 10 with patch 121288-03 or later x86 Platform * Solaris 10 with patch 121289-04 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 2000-2006 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, CA 95054 U.S.A. All rights reserved - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: http://www.auscert.org.au/render.html?it=3192 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBRmeRUih9+71yA2DNAQLwYgP/feNEG5/XbQqBzcl7Y+GQEcPfh3yZltxZ 8CEnfbpoFpfcigoaPWhhaFegSGSiSl2KcweB4JKHVHh5GPxyNSWOjflRBgRbNgKi z1hN5WeidZTPj7CCRWn4i7wYJkm8F6V5YjzRpd05xiaMoH83dY3bIzZRLb1lQ/hs bSpNtk7a08Y= =cpOZ -----END PGP SIGNATURE-----