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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.0041 VMware ESXi, Workstation, Player, and Fusion updates address important guest privilege escalation vulnerability 8 January 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: VMware ESXi VMware Workstation Player VMware Fusion Publisher: VMWare Operating System: Windows UNIX variants (UNIX, Linux, OSX) VMware ESX Server Impact/Access: Increased Privileges -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2015-6933 Original Bulletin: https://www.vmware.com/security/advisories/VMSA-2016-0001.html - --------------------------BEGIN INCLUDED TEXT-------------------- VMSA-2016-0001 VMware ESXi, Fusion, Player, and Workstation updates address important guest privilege escalation vulnerability VMware Security Advisory Advisory ID: VMSA-2016-0001 Synopsis: VMware ESXi, Fusion, Player, and Workstation updates address important guest privilege escalation vulnerability Issue date: 2016-01-07 Updated on: 2016-01-07 (Initial Advisory) CVE numbers: CVE-2015-6933 1. Summary VMware ESXi, Fusion, Player, and Workstation updates address important guest privilege escalation vulnerability 2. Relevant Releases VMware ESXi 6.0 without patch ESXi600-201512102-SG VMware ESXi 5.5 without patch ESXi550-201512102-SG VMware ESXi 5.1 without patch ESXi510-201510102-SG VMware ESXi 5.0 without patch ESXi500-201510102-SG VMware Workstation prior to 11.1.2 VMware Player prior to 7.1.2 VMware Fusion prior to 7.1.2 3. Problem Description Important Windows-based guest privilege escalation in VMware Tools A kernel memory corruption vulnerability is present in the VMware Tools "Shared Folders" (HGFS) feature running on Microsoft Windows. Successful exploitation of this issue could lead to an escalation of privilege in the guest operating system. VMware would like to thank Dmitry Janushkevich from the Secunia Research Team for reporting this issue to us. Note: This vulnerability does not allow for privilege escalation from the guest operating system to the host. Host memory can not be manipulated from the guest operating system by exploiting this flaw. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the identifier CVE-2015-6933 to this issue. Workarounds Removing the "Shared Folders" (HGFS) feature from previously installed VMware Tools will remove the possibility of exploitation. Column 4 of the following table lists the action required to remediate the vulnerability in each release, if a solution is available. VMware Product Product Version Running on Replace with/ Apply Patch* VMware ESXi 6.0 ESXi ESXi600-201512102-SG** VMware ESXi 5.5 ESXi ESXi550-201512102-SG** VMware ESXi 5.1 ESXi ESXi510-201510102-SG** VMware ESXi 5.0 ESXi ESXi500-201510102-SG** VMware Workstation 12.x.x Any not affected VMware Workstation 11.x.x Any 11.1.2 VMware Player 12.x.x Any not affected VMware Player 7.x.x Any 7.1.2 VMware Fusion 8.x.x OSX not affected VMware Fusion 7.x.x OSX 7.1.2 *After the update or patch is applied, VMware Tools must also be updated in any Windows-based guests that include the "Shared Folders" (HGFS) feature to resolve CVE-2015-6933. **VMware Tools installations initiated via vSphere (ESXi/vCenter) do not include the affected "Shared Folders" (HGFS) feature unless a "Complete" feature set was specified during the initial installation. 4. Solution Please review the patch/release notes for your product and version and verify the checksum of your downloaded file. VMware ESXi 6.0 Downloads: https://www.vmware.com/patchmgr/findPatch.portal Documentation: http://kb.vmware.com/kb/2135123 VMware ESXi 5.5 Downloads: https://www.vmware.com/patchmgr/findPatch.portal Documentation: http://kb.vmware.com/kb/2135796 VMware ESXi 5.1 Downloads: https://www.vmware.com/patchmgr/findPatch.portal Documentation: http://kb.vmware.com/kb/2126488 VMware ESXi 5.0 Downloads: https://www.vmware.com/patchmgr/findPatch.portal Documentation: http://kb.vmware.com/kb/2120210 VMware Workstation 11.1.2 Downloads and Documentation: https://www.vmware.com/go/downloadworkstation VMware Player 7.1.2 Downloads and Documentation: https://www.vmware.com/go/downloadplayer VMware Fusion 7.1.2 https://www.vmware.com/go/downloadfusion 5. References http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6933 6. Change log 2016-01-07 VMSA-2016-0001 Initial security advisory in conjunction with the release of VMware ESXi 6.0 patches on 2016-01-07. 7. Contact E-mail list for product security notifications and announcements: http://lists.vmware.com/cgi-bin/mailman/listinfo/security-announce This Security Advisory is posted to the following lists: security-announce at lists.vmware.com bugtraq at securityfocus.com fulldisclosure at seclists.org E-mail: security at vmware.com PGP key at: http://kb.vmware.com/kb/1055 VMware Security Advisories http://www.vmware.com/security/advisories Consolidated list of VMware Security Advisories http://kb.vmware.com/kb/2078735 VMware Security Response Policy https://www.vmware.com/support/policies/security_response.html VMware Lifecycle Support Phases https://www.vmware.com/support/policies/lifecycle.html Twitter https://twitter.com/VMwareSRC Copyright 2016 VMware Inc. 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 =========================================================================== 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). 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