STIGQter STIGQter: STIG Summary: Red Hat Enterprise Linux 9 Security Technical Implementation Guide Version: 2 Release: 9 Benchmark Date: 01 Jul 2026:

RHEL 9 must define default permissions for the bash shell.

DISA Rule

SV-258072r1184320_rule

Vulnerability Number

V-258072

Group Title

SRG-OS-000480-GPOS-00228

Rule Version

RHEL-09-412055

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Configure RHEL 9 to define default permissions for all authenticated users using the bash shell.

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

umask 077

Check Contents

Verify the "umask" setting is configured correctly in the "/etc/bashrc" file with the following command:

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

$ grep umask /etc/bashrc

[ `umask` -eq 0 ] && 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-258072

Documentable

False

Rule Version

RHEL-09-412055

Severity Override Guidance

Verify the "umask" setting is configured correctly in the "/etc/bashrc" file with the following command:

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

$ grep umask /etc/bashrc

[ `umask` -eq 0 ] && 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

5551