STIGQter: STIG Summary: Red Hat Enterprise Linux 10 Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 01 Jul 2026:

RHEL 10 must define default permissions for the c shell.

DISA Rule

SV-281081r1184682_rule

Vulnerability Number

V-281081

Group Title

SRG-OS-000080-GPOS-00048

Rule Version

RHEL-10-400320

Severity

CAT II

CCI(s)

• CCI-000213 - Enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies.

Weight

10

Fix Recommendation

Configure RHEL 10 to define default permissions for all authenticated users using the c shell.

Add or edit the lines for the "umask" parameter in the "/etc/csh.cshrc" file to "077":

umask 077

Check Contents

Verify the RHEL 10 "umask" setting is configured correctly in the "/etc/csh.cshrc" file with the following command:

Note: If the value of the "umask" parameter is set to "000" in the "/etc/csh.cshrc" file, the Severity is raised to a CAT I.

$ sudo grep umask /etc/csh.cshrc
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.

Vulnerability Number

V-281081

Documentable

False

Rule Version

RHEL-10-400320

Severity Override Guidance

Verify the RHEL 10 "umask" setting is configured correctly in the "/etc/csh.cshrc" file with the following command:

Note: If the value of the "umask" parameter is set to "000" in the "/etc/csh.cshrc" file, the Severity is raised to a CAT I.

$ sudo grep umask /etc/csh.cshrc
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.

Check Content Reference

M

Target Key

5733