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ESA-2016-061: EMC Isilon OneFS SMB Signing Vulnerability
EMC Identifier: ESA-2016-061
CVE Identifier: CVE-2016-0907
Severity Rating: CVSSv3 Base Score: 5.9 (AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N)
Affected products:
EMC IsilonSD Edge OneFS 8.0.x
EMC Isilon OneFS 8.0.x
EMC Isilon OneFS 7.2.1.x
EMC Isilon OneFS 7.2.0.x
EMC Isilon OneFS 7.1.1.x
EMC Isilon OneFS 7.1.0.x
Summary:
EMC Isilon OneFS and EMC IsilonSD Edge include an implementation of the SMB
protocol. This implementation is vulnerable to a man-in-the-middle attack that
could compromise the affected systems.
Details:
The Isilon implementation of the SMB client does not require SMB signing within
a DCERPC session over ncacn_np, which may allow man-in-the-middle attackers to
spoof SMB clients by modifying the client-server data stream. This is similar
to CVE-2016-2115 in Samba implementation. More information can be found at
https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-2115.
Resolution:
This issue is resolved in the following versions of OneFS:
EMC IsilonSD Edge OneFS 8.0.0.1
EMC Isilon OneFS 8.0.0.1
EMC Isilon OneFS 7.2.1.3
In addition, patches are available for the following versions of OneFS:
Version Patch
OneFS 8.0.0.0 Patch-169836
IsilonSD Edge OneFS 8.0.0.0 Patch-169836
OneFS 7.2.1.1 - 7.2.1.2 Patch-169835
OneFS 7.1.1.8 - 7.1.1.9 Patch-169833
EMC recommends that all customers install the appropriate patch at the earliest
opportunity. If you are not running a version for which a patch is available,
EMC recommends that you upgrade to a target code version, and then install the
patch.
Isilon Engineering is also working to validate a code fix for the following
product family. This code fix will be available in an upcoming maintenance
release:
EMC Isilon OneFS 7.1.1.x
This ESA will be updated when the code fix becomes available.
Link to remedies:
Registered EMC Online Support customers can download the patches from the
following locations:
Patch-169836: https://download.emc.com/downloads/DL70407
Patch-169835: https://download.emc.com/downloads/DL70405
Patch-169833: https://download.emc.com/downloads/DL70402
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_al...@emc.com
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