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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2009.0621 -- [Solaris][OpenSolaris] Virtual Network Terminal Server Daemon (vntsd(1M)): Increased Privileges 2 July 2009 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Virtual Network Terminal Server Daemon (vntsd(1M)) Publisher: Sun Microsystems Operating System: Solaris OpenSolaris Impact: Increased Privileges Inappropriate Access Access: Existing Account CVE Names: CVE-2009-2282 Original Bulletin: http://sunsolve.sun.com/search/document.do?assetkey=1-66-262708-1 Revision History: July 2 2009: Added CVE Reference June 29 2009: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- Solution Type Sun Alert Solution 262708 : Security Vulnerability in the Virtual Network Terminal Server Daemon (vntsd(1M)) for Logical Domains (LDoms) May Allow Unauthorized Access to Guest Domain Console Bug ID: 6781539 Product: Solaris 10 Operating System OpenSolaris Date of Resolved Release: 25-Jun-2009 SA Document Body Security Vulnerability in the Virtual Network Terminal Server Daemon (vntsd(1M)) ... see below: 1. Impact A security vulnerability in the Solaris Virtual Network Terminal Server daemon (vntsd(1M)) for Logical Domains (LDoms) may allow local unprivileged users within the control domain to gain unauthorized access to the console of a guest domain. 2. Contributing Factors SPARC Platform * Solaris 10 without patch 141778-01 * OpenSolaris based upon builds snv_41 through snv_108 Notes: Solaris 8 and Solaris 9 are not affected as they do not support LDoms. Solaris on the x86 Platform is not affected by this issue as Logical Domains (LDoms) software is supported only on the SPARC Platform. 3. Symptoms There are no predictable symptoms to indicate that this issue has been exploited to gain unauthorized console access to guest domains. 4. Workaround Until the resolution patches are applied, it is possible to workaround this issue via one of the following options: 1. Disable console access to the guest domains. This may be done by executing the following command: ldmctrl:#> svcadm disable vntsd 2. Allow console access to guest domains only from a separate sparse root zone. This may be done by executing the following commands: ldmctrl:#> svcadm disable vntsd ldmctrl:#> svccfg -s vntsd setprop vntsd/listen_addr = <IP-address-of-sparse-root-zone> ldmctrl:#> svcadm refresh vntsd ldmctrl:#> svcadm enable vntsd Firewall rules may be required to allow access only from the sparse root zone to the ports used by the vntsd(1M) daemon. Refer to firewall documentation for more information on configuring the tool. 5. Resolution This issue is addressed in the following releases: SPARC Platform * Solaris 10 with patch 141778-01 or later * OpenSolaris based upon builds snv_109 or later For more information on Security Sun Alerts, see Technical Instruction ID 213557 - --------------------------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. 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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 iD8DBQFKTCobNVH5XJJInbgRAgzrAJ0W1TX0dOonfGic9is9/Ra5y1BY/gCfb1MO YgwWZD6ZfLZOxPW4vZKTO9o= =fG5b -----END PGP SIGNATURE-----