ESA-2015-163: EMC VPLEX Sensitive Information Exposure Vulnerability

[Security Alert <Security_Alert@xxxxxxx>]

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ESA-2015-163: EMC VPLEX Sensitive Information Exposure Vulnerability

EMC Identifier: ESA-2015-163

CVE Identifier: CVE-2015-6847

Severity Rating: CVSS v2 Base Score: 6.8 (AV:L/AC:L/Au:S/C:C/I:C/A:C)

Affected products: 
EMC VPLEX GeoSynchrony 5.4 Service Pack 1
EMC VPLEX GeoSynchrony 5.4 Service Pack 1 Patch 1

Summary: 
EMC VPLEX GeoSynchrony code levels 5.4 SP1 and 5.4 SP1 P1 contain a 
vulnerability that allows a user password to be logged in plaintext when the 
user attempts to login via the NAVISPEHERE Graphical User Interface (GUI) that 
could potentially be exploited by malicious users.

Details: 
The default log level setting of the affected VPLEX releases logged passwords 
in plain text for all VPLEX users that attempt to login through the GUI. Any 
malicious user with access to the log files can obtain these passwords and 
access the VPLEX server with privileges of the compromised user(s). In case of 
VPLEX systems configured with an external directory server (LDAP/AD), 
unauthorized access can also be gained to other systems, if the system is 
accessible utilizing the compromised LDAP/AD user account.

Resolution:  
The following VPLEX GeoSynchrony code releases contain a resolution for this 
vulnerability:
?       EMC VPLEX GeoSynchrony 5.4 SP1 P3 has the fix for this vulnerability. 
Upgrading to this version will remove exposed passwords from existing log files 
and prevent plain text logging in the future for all log levels.
?       EMC VPLEX GeoSynchrony 5.5 does not have the complete fix. It only 
modifies the log level setting of the affected log files. Upgrading to this 
version will only prevent plain text logging in the future for all log levels, 
it does not remove exposed passwords and the pre-existing log level file is 
still vulnerable to exposure.  To remove existing affected log files, customers 
must follow the instructions in the KB Article ?EMC VPLEX Sensitive Information 
Exposure Vulnerability? prior to upgrading to 5.5. 

Note: VS1 customers cannot upgrade to 5.5, only VS2 hardware is capable of 
running 5.5.  VS1 customers must upgrade to 5.4 SP1 P3, and VS2 customers can 
go to either 5.4 SP1 P3, or 5.5.
EMC recommends all customers to upgrade to one of the above listed versions at 
their earliest opportunity.  Customers are also strongly advised to reset 
passwords for all affected users to fully mitigate the risk.

Workaround:
Please follow the instructions in ?EMC VPLEX Sensitive Information Exposure 
Vulnerability ? to change the log level to an unaffected one and remove the 
existing affected log files. 

This workaround WILL NOT prevent logging plaintext passwords if the log level 
is changed back to the affected one. 

Link to remedies:
Customers must follow the KB and can download the script mentioned in the KB 
from EMC?s On-Line 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.

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