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ESA-2016-061: EMC Isilon OneFS SMB Signing Vulnerability



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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_alert@xxxxxxx
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