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.

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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 & 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 & 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

Legal Disclaimer

Affected Products

PowerScale OneFS

Products

Product Security Information
Article Properties
Article Number: 000153855
Article Type: Dell Security Advisory
Last Modified: 23 Sep 2024
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