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V-258856

CAT II (Medium)

The Photon operating system 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-258856r933629_rule

STIG

VMware vSphere 8.0 vCenter Appliance Photon OS 4.0 Security Technical Implementation Guide

Version

V1R1

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

At the command line, run the following command to verify the default umask configuration:

# grep '^UMASK' /etc/login.defs

Expected result:

UMASK 077

If the "UMASK" option is not set to "077", is missing or commented out, this is a finding.

Fix Text

Navigate to and open:

/etc/login.defs

Add or update the following line:

UMASK 077