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ESA-2015-006: EMC Avamar Missing Certificate Validation Vulnerability

EMC Identifier: ESA-2015-006
 
CVE Identifier:  CVE-2014-4632 

Severity Rating: CVSSv2 Base Score: 7.9 (AV:A/AC:M/Au:N/C:C/I:C/A:C)

Affected products: 
•  EMC Avamar Data Store (ADS) and Avamar Virtual Edition (AVE) 6.x and 7.0.x.

Summary: 
EMC Avamar contains a security vulnerability that may potentially be leveraged by a malicious user to obtain sensitive information when performing a backup or restore operation relating to the vCenter Server.

Details: 
EMC Avamar VMware image and File Level Restore  (FLR) proxies do not verify SSL certificates properly when presented by vCenter and may be vulnerable to man-in-the-middle attacks. This vulnerability may potentially be exploited to obtain sensitive information when performing backup and restore operations relating to the vCenter Server.

Resolution: 
Customers can apply one of the following resolutions:

•  Upgrade the proxy to EMC Avamar proxy client 7.1.101-141 and apply Hotfix 222547
•  Upgrade the proxy to EMC Avamar proxy client 7.1.100-370 and apply Hotfix 222536
•  Upgrade the proxy to EMC Avamar proxy client 7.0.102-47 and apply HotFix 222535
•  If the EMC Avamar proxy client is already at 7.0.102-43, then apply hotfix 222535, which is compatible with either proxy client versions 7.0.102-43 or 7.0.102-47


Credits:
EMC would like to thank Thorsten Tüllmann (researcher at KIT, Germany) and KIT-CERT for reporting this issue.

Link to remedies:
See https://support.emc.com/kb/194809 for remedy instructions. 
For any questions regarding this advisory please contact EMC customer support at https://support.emc.com. 


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.
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