STIGQter STIGQter: STIG Summary: Cloud Linux AlmaLinux OS 9 Security Technical Implementation Guide Version: 1 Release: 7 Benchmark Date: 01 Jul 2026:

AlmaLinux OS 9 must define default permissions for PAM users.

DISA Rule

SV-269236r1050118_rule

Vulnerability Number

V-269236

Group Title

SRG-OS-000480-GPOS-00228

Rule Version

ALMA-09-017730

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Configure AlmaLinux OS 9 to define default permissions for all authenticated users so the user can only read and modify their own files.

Add or edit the following line at the top of /etc/pam.d/postlogin:

session optional pam_umask.so silent

Check Contents

Verify that the "pam_umask" module is enabled with the following command:

$ grep -i umask /etc/pam.d/*

/etc/pam.d/postlogin:session optional pam_umask.so silent umask=0022

If a "pam_umask.so" line is not returned, this is a finding.

If the "umask" setting is set to anything other than "0077", this is a finding.

Note: If the "umask" setting is not found, it will use the default UMASK entry in /etc/login.defs.

Vulnerability Number

V-269236

Documentable

False

Rule Version

ALMA-09-017730

Severity Override Guidance

Verify that the "pam_umask" module is enabled with the following command:

$ grep -i umask /etc/pam.d/*

/etc/pam.d/postlogin:session optional pam_umask.so silent umask=0022

If a "pam_umask.so" line is not returned, this is a finding.

If the "umask" setting is set to anything other than "0077", this is a finding.

Note: If the "umask" setting is not found, it will use the default UMASK entry in /etc/login.defs.

Check Content Reference

M

Target Key

5664