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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2008.0581 -- [Solaris] rpc.ypupdated(1M) may allow execution of Arbitrary Code when run in Insecure Mode 5 December 2008 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: rpc.ypupdated Publisher: Sun Microsystems Operating System: Solaris Impact: Root Compromise Access: Remote/Unauthenticated Original Bulletin: http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-66-238365-1 Revision History: December 5 2008: Patches released June 25 2008: x86 ISR patch released June 4 2008: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- Solution Type: Sun Alert Solution 238365 : A Security Vulnerability in rpc.ypupdated(1M) May Allow Execution of Arbitrary Code When Run in Insecure Mode Bug ID: 6679204 Product Solaris 8 Operating System, Solaris 9 Operating System, Solaris 10 Operating System Date of Workaround Release: 02-Jun-2008 Date of Resolved Release: 03-Dec-2008 SA Document Body A Security Vulnerability in rpc.ypupdated(1M) May Allow Execution of Arbitrary Code When Run in Insecure Mode 1. Impact A security vulnerability in the rpc.ypupdated(1M) daemon, when configured to run in the insecure mode via the "-i" option, may allow local or remote unprivileged users to execute arbitrary code with root privileges. 2. Contributing Factors This issue can occur in the following releases: SPARC Platform: * Solaris 8 without patch 138885-01 * Solaris 9 without patch 138575-01 * Solaris 10 without patch 139481-01 * OpenSolaris based upon builds snv_01 through snv_89 x86 Platform: * Solaris 8 without patch 138886-01 * Solaris 9 without patch 138576-01 * Solaris 10 without patch 139482-01 * OpenSolaris based upon builds snv_01 through snv_89 Note: Only OpenSolaris installations including the affected binary listed below are affected by this issue : /usr/lib/netsvc/yp/rpc.ypupdated Note: OpenSolaris distributions may include additional bug fixes above and beyond the base build from which it was derived. The base build can be derived as follows: $ uname -a SunOS phys-node-1 5.11 snv_86 i86pc i386 i86pc 3. Symptoms There are no predictable symptoms to indicate the described issue has been exploited to execute arbitrary code. 4. Workaround To work around the described issue, do not run rpc.ypupdated(1M) using the "-i" option (insecure mode). 5. Resolution This issue is addressed in the following releases: SPARC Platform * Solaris 8 with patch 138885-01 or later * Solaris 9 with patch 138575-01 or later * Solaris 10 with patch 139481-01 or later * OpenSolaris based upon build snv_90 or later x86 Platform * Solaris 8 with patch 138886-01 or later * Solaris 9 with patch 138576-01 or later * Solaris 10 with patch 139482-01 or later * OpenSolaris based upon build snv_90 or later For more information on Security Sun Alerts, see Technical Instruction ID 213557. 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 2000-2008 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 iQCVAwUBSTiF4Ch9+71yA2DNAQJ+OAQAlRk8kf2pwzQygb+g9p0cubj9atP6lpsm h2yEhkyPX+7igdyzoSySdZogMMcmxdc6y7l1cYHhc0JRbkbzfj0yu5vK8kXhNsM/ VW+U6TGIjfJdMEJCt6TlI0ncRuYSI/63lkOi34qoDPcLh0764lWuZAtHUNkTTyc4 9B/RFMDNkuc= =/gbn -----END PGP SIGNATURE-----