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V-254195

CAT III (Low)

Nutanix AOS must define default permissions for all authenticated users in such a way that the user can only read and modify their own files.

Rule ID

SV-254195r991590_rule

STIG

Nutanix AOS 5.20.x OS Security Technical Implementation Guide

Version

V1R2

CCIs

CCI-000366

Discussion

Setting the most restrictive default permissions ensures that when new accounts are created they do not have unnecessary access.

Check Content

Confirm Nutanix AOS defines default permissions for all authenticated users in such a way that the user can only read and modify their own files.

$ sudo grep -i umask /etc/login.defs
UMASK 077

If the value for the "UMASK" parameter is not "077", or the "UMASK" parameter is missing or is commented out, this is a finding.

Fix Text

Configure Nutanix AOS default permissions UMASK to 077 by running the following command.

salt-call state.sls security/CVM/shellCVM