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Article Number: 000153855


DSA-2020-155: Dell EMC Isilon OneFS and Dell EMC PowerScale Security Update for a Permissions Vulnerability

Summary: Dell EMC Isilon OneFS contains a remediation for a file permissions vulnerability that may be exploited by malicious users to compromise the affected system.

Article Content


Impact

High

Details

Incorrect Permission Assignment Vulnerability

CVE-2020-5371

Dell EMC Isilon OneFS contains a file permissions vulnerability. An attacker, with network or local file access, could take advantage of insufficiently applied file permissions or gain unauthorized access to files.

CVSS v3.1 Base Score:8.0 (CVSS 3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H)

Incorrect Permission Assignment Vulnerability

CVE-2020-5371

Dell EMC Isilon OneFS contains a file permissions vulnerability. An attacker, with network or local file access, could take advantage of insufficiently applied file permissions or gain unauthorized access to files.

CVSS v3.1 Base Score:8.0 (CVSS 3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H)

Dell Technologies recommends all customers consider both the CVSS base score and any relevant temporal and environmental scores that may impact the potential severity associated with a particular security vulnerability.

Affected Products and Remediation

Affected products:        

  • Dell EMC Isilon OneFS versions 8.2.2 and earlier.

  • Dell EMC PowerScale OneFS versions 9.2.0 and earlier.

Remediation:      
See Workarounds and Mitigations section.


Affected products:        

  • Dell EMC Isilon OneFS versions 8.2.2 and earlier.

  • Dell EMC PowerScale OneFS versions 9.2.0 and earlier.

Remediation:      
See Workarounds and Mitigations section.


Workarounds and Mitigations

To preserve administrative write permissions, change the permissions on /ifs as follows:     

chmod 755 /ifs /ifs/data
chmod +a# 1 group admin allow generic_write,delete_child,std_write_dac /ifs /ifs/data
chmod +a# 1 user compadmin allow generic_write,delete_child,std_write_dac /ifs /ifs/data

NOTE: The additional path /ifs/data on each `chmod` line.

Revision History

RevisionDateDescription
2.02021-02-15Workaround Updated
1.02020-06-18Initial Publication

Related Information

Dell Security Advisories and Notices
Dell Vulnerability Response Policy
CVSS Scoring Guide


Article Properties


Affected Product

PowerScale OneFS

Product

Product Security Information

Last Published Date

15 Feb 2021

Version

3

Article Type

Dell Security Advisory