The Photon operating system must set the "umask" parameter correctly.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-256583	PHTN-30-000114	SV-256583r918968_rule		Medium

Description
The "umask" value influences the permissions assigned to files when they are created. The "umask" setting in "login.defs" controls the permissions for a new user's home directory. By setting the proper "umask", home directories will only allow the new user to read and write files there.

STIG	Date
VMware vSphere 7.0 vCenter Appliance Photon OS Security Technical Implementation Guide	2023-12-01

Details

Check Text ( C-60258r918967_chk )
At the command line, run the following command: # grep ^UMASK /etc/login.defs Example result: UMASK 077 If "UMASK" is not configured to "077", this a finding. Note: "UMASK" should only be specified once in login.defs.

Fix Text (F-60201r887422_fix)
Navigate to and open: /etc/login.defs Ensure the "UMASK" line is uncommented and set to the following: UMASK 077