==================================================================== CERT-Renater Note d'Information No. 2016/VULN001 _____________________________________________________________________ DATE : 07/01/2016 HARDWARE PLATFORM(S): / OPERATING SYSTEM(S): Systems running VMware ESXi versions 6.0, 5.5, 5.1, 5.0, VMware Fusion versions prior to 7.1.2, VMware Player versions prior to 7.1.2, VMware Workstation versions prior to 11.1.2. ====================================================================== http://lists.vmware.com/pipermail/security-announce/2016/000316.html _____________________________________________________________________ - ------------------------------------------------------------------------ VMware Security Advisory Advisory ID: VMSA-2016-0001 Synopsis: VMware ESXi, Workstation, Player, and Fusion updates address important guest privilege escalation vulnerability Issue date: 2016-01-07 Updated on: 2016-01-07 (Initial Advisory) CVE number: 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 Running Replace with/ Product Version on 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 8.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. 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