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AUSCERT External Security Bulletin Redistribution
ESB-2015.2956
EMC Isilon OneFS Privilege Escalation Vulnerability
27 November 2015
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AusCERT Security Bulletin Summary
---------------------------------
Product: EMC Isilon OneFS
Publisher: EMC
Operating System: Virtualisation
Impact/Access: Root Compromise -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2015-6848
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ESA-2015-164: EMC Isilon OneFS Privilege Escalation Vulnerability
EMC Identifier: ESA-2015-164
CVE Identifier: CVE-2015-6848
Severity Rating: CVSS v2 Base Score: 8.5 (AV:N/AC:M/Au:S/C:C/I:C/A:C)
Affected products:
EMC Isilon OneFS 7.2.1.0
EMC Isilon OneFS 7.2.0.0 - 7.2.0.2
EMC Isilon OneFS 7.1.1.0 - 7.1.1.4
EMC Isilon OneFS 7.1.0.x
Summary:
EMC Isilon OneFS is affected by a privilege escalation vulnerability that may
potentially be exploited by attackers to compromise the affected system.
Details:
EMC Isilon OneFS is affected by a privilege escalation vulnerability. The
vulnerability may grant Active Directory (AD) users in trusted domains
root-level access to EMC Isilon clusters if RFC 2307 is enabled on the
cluster, and if Windows Services for UNIX (SFU) is not configured on the
trusted domain.
Resolution:
The following versions of EMC Isilon OneFS resolve this vulnerability:
EMC Isilon OneFS 7.2.1.1
EMC Isilon OneFS 7.2.0.3
EMC Isilon OneFS 7.1.1.5
EMC strongly recommends that all customers upgrade to a version containing the
resolution at the earliest opportunity.
Workaround:
If upgrading is not an option, customers can perform the following workaround:
Do not enable RFC 2307 for AD authentication on your cluster unless your
domain and all trusted domains have SFU enabled and configured for all domain
users.
Link to remedies:
Registered EMC Online Support customers can download OneFS installation files
from the Downloads for Isilon OneFS page of the EMC Online Support site at
https://support.emc.com/downloads/15209_Isilon-OneFS.
If you have any questions, please contact EMC Support.
Read and use the information in this EMC Security Advisory to assist in
avoiding any situation that might arise from the problems described herein. If
you have any questions regarding this product alert, contact EMC Software
Technical Support at 1-877-534-2867.
For an explanation of Severity Ratings, refer to EMC Knowledgebase solution
emc218831. EMC recommends all customers take into account both the base score
and any relevant temporal and environmental scores which may impact the
potential severity associated with particular security vulnerability.
EMC Corporation distributes EMC Security Advisories, in order to bring to the
attention of users of the affected EMC products, important security
information. EMC recommends that all users determine the applicability of this
information to their individual situations and take appropriate action. The
information set forth herein is provided "as is" without warranty of any kind.
EMC disclaims all warranties, either express or implied, including the
warranties of merchantability, fitness for a particular purpose, title and
non-infringement. In no event, shall EMC or its suppliers, be liable for any
damages whatsoever including direct, indirect, incidental, consequential, loss
of business profits or special damages, even if EMC or its suppliers have been
advised of the possibility of such damages. Some states do not allow the
exclusion or limitation of liability for consequential or incidental damages,
so the foregoing limitation may not apply.
EMC Product Security Response Center
security_alert@emc.com
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