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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2007.0564 -- [Solaris] Security Vulnerability in Solaris 10 BIND: Susceptible to Cache Poisoning Attack 6 September 2007 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: BIND named(1M) Publisher: Sun Microsystems Operating System: Solaris 10 Impact: Reduced Security Provide Misleading Information Access: Remote/Unauthenticated CVE Names: CVE-2007-2926 Ref: AL-2007.0089 Original Bulletin: http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-26-103018-1 Revision History: September 6 2007: Updated resolution information August 27 2007: Final patches released for Solaris 10 August 10 2007: Preliminary patches released for Solaris 10 July 27 2007: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- Sun(sm) Alert Notification * Sun Alert ID: 103018 * Synopsis: Security Vulnerability in Solaris 10 BIND: Susceptible to Cache Poisoning Attack * Category: Security * Product: Solaris 10 Operating System * BugIDs: 6582717 * Avoidance: Patch * State: Resolved * Date Released: 25-Jul-2007, 22-Aug-2007 * Date Closed: 22-Aug-2007 * Date Modified: 08-Aug-2007, 22-Aug-2007, 04-Sep-2007 1. Impact Remote unprivileged users may cause named(1M) to ultimately return incorrect addresses for Internet hosts thereby redirecting end users to unintended hosts and or services. This issue is also referenced in the following documents: * CVE-2007-2926 (CERT-US VU#553201) at: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2926 * Internet Systems Consortium Security bulletin at: http://www.isc.org/sw/bind/bind-security.php 2. Contributing Factors This issue can occur in the following releases: SPARC Platform * Solaris 10 without patch 119783-05 x86 Platform * Solaris 10 without patch 119784-05 Note: Solaris 8 and Solaris 9 are not impacted by this issue. Only systems with the BIND named(1M) service enabled are impacted by this issue. To verify if the DNS service instance is enabled under smf(5), use the svcs(1) command as follows: $ svcs -l svc:/network/dns/server:default | grep enabled enabled true 3. Symptoms There are no reliable symptoms that would indicate the described issue has occurred. 4. Relief/Workaround There is no workaround. Please see the Resolution section below. 5. Resolution This issue is addressed in the following releases: SPARC Platform * Solaris 10 with patch 119783-05 or later x86 Platform * Solaris 10 with patch 119784-05 or later Note: The resolution provides BIND 9.3.4-P1 as provided by the custodians of BIND; the Internet Systems Consortium (ISC). After the patch has been installed, it is recommended that BIND administrators familiarize themselves with the "/usr/share/doc/bind/migration.txt" document. Further information on BIND 9.3 is available in the BIND 9.3 Advanced Reference Manual (ARM) available on the ISC web site at: * http://www.isc.org/sw/bind/arm93/index.php Change History 08-Aug-2007: * Updated Relif/Workaround section 22-Aug-2007: * State: Resolved * Updated Contributing Factors, Relief/Workaround, and Resolution sections. 04-Sep-2007: * Updated Resolution section 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. 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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 iQCVAwUBRt8/lSh9+71yA2DNAQJ+fwP8Cn/2wBHwI3Xmc+Zyou0pu3a92d6gRWIV UxFGS20zLRx4qiXOvkvOliCT2PrbOdKlAe83lZkS3UsR6CRzO/IR/AAE0D7bSolL g5YxX/vjqNun0AAKKB4Y32Nvtt6fMx+1iKh1ssnAKzqB/yVhtzdin4hwtjSiWZvF hNiNK8g8pM0= =q/QN -----END PGP SIGNATURE-----