DSA-2020-124: Dell EMC Isilon OneFS Security Update for Multiple Vulnerabilities


alert-notice

Medium

First published:  18 May 2020
Last updated:  13 Jul 2020

CVE ID(s)

Overview

Severity Rating (CVSS Base Score)

View details below for individual CVSS Score for each CVE.

Summary:    
Dell EMC Isilon OneFS contains fixes for multiple security vulnerabilities that may be exploited by malicious users to compromise the affected system.

Details

Filled_Alert_Notice_Symbol   Severity Disclaimer

For an explanation of Severity Ratings, refer to Dell EMC Knowledgebase article 468307. Dell 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.

Read and use the information in this Dell 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 Dell EMC Software Technical Support at 1-877-534-2867. Dell EMC distributes Dell EMC Security Advisories, in order to bring to the attention of users of the affected Dell EMC products, important security information. Dell 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. Dell 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 Dell EMC or its suppliers, be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Dell 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.

Recommendations

Affected products:    
Dell EMC Isilon OneFS versions 9.0.0 and earlier.

Remediation:    
For Dell EMC Isilon OneFS versions 9.0.0 and earlier, see the Workarounds section below.


Workarounds:     
For SNMP 
There are two options:    

  • Modify the SNMPv2 community string

  • Disable the SNMPv2 interface

Note: The first option is recommended. However, if you do not need SNMPv2, it is recommended that you disable it.

To modify the SNMPv2 community string through the command line interface:    

  1. Open a secure shell (SSH) connection to any node in the cluster and log in as root.

  2. Edit the :    
    isi snmp settings modify --read-only-community=


To disable the SNMPv2 interface:    
To disable the SNMPv2 interface on the OneFS web administration interface:     

  1. On the webUI, click Cluster Management > General Settings > SNMP Monitoring.

  2. In the SNMP Service Settings, uncheck the Enable SNMP Service check box. The SNMP service is enabled by default.

  3. If your protocol is SNMPv2, ensure that the Allow SNMPv2 Access check box is unchecked. SNMPv2 is selected by default.

To disable the SNMPv2 interface through the command line interface:    

  1. Open a secure shell (SSH) connection to any node in the cluster and log in as root.

  2. Run the following command:   
    isi snmp settings modify --snmp-v1-v2c-access=false


For the default Remotesupport account:     
There are two options:   

  • Change the password

  • Disable the account

Note: If you change the remotesupport password and you utilize TSE services with this account, you must provide the updated password whenever contacting Support so that a technical support engineer can still access the functions, as necessary.


Through the OneFS web administration interface:     
To change the password:     

  1. On the webUI, go to Access > Membership and roles  > Users > Providers: "FILE: System" remotesupport user > View/Edit > Edit user > password field

  2. Click Save Changes

To disable the account:     

  1. On the webUI, go to Access > Membership and roles > Users > Providers: "FILE: System" remotesupport user > Disable 


Command line interface:     
To change the password:     

  1. Open a secure shell (SSH) connection to any node in the cluster and log in as root.

  2. Run the following command:   
    isi auth users modify remotesupport –set-password

To disable the account:   

  1. Open a secure shell (SSH) connection to any node in the cluster and log in as root.

  2. Run the following command:     
    isi auth users modify remotesupport --enabled false

Credit

Dell would like to thank Andre Protas with Apple Information Security for reporting this issue.

Read and use the information in this Dell 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 Dell EMC Software Technical Support at 1-877-534-2867. Dell EMC distributes Dell EMC Security Advisories, in order to bring to the attention of users of the affected Dell EMC products, important security information. Dell 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. Dell 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 Dell EMC or its suppliers, be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Dell 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.