RHEL 10 must define default permissions for all authenticated users in such a way that the user can read and modify only their own files.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-281082 | RHEL-10-400325 | SV-281082r1195406_rule | CCI-000213 | medium |
| Description | ||||
| Setting the most restrictive default permissions ensures that when new accounts are created, they do not have unnecessary access. | ||||
| STIG | Date | |||
| Red Hat Enterprise Linux 10 Security Technical Implementation Guide | 2026-03-11 | |||
Details
Check Text (C-281082r1195406_chk)
Verify RHEL 10 defines default permissions for all authenticated users in such a way that the user can only read and modify their own files with the following command:
Note: If the value of the "umask" parameter is set to "000" in "/etc/login.defs" file, the Severity is raised to a CAT I.
$ 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 (F-85548r1195405_fix)
Configure RHEL 10 to define default permissions for all authenticated users in such a way that the user can read and modify only their own files.
Add or edit the lines for the "umask" parameter in the "/etc/login.defs" file to "077":
umask 077