STIGQter: STIG Summary: Oracle Linux 9 Security Technical Implementation Guide Version: 1 Release: 6 Benchmark Date: 01 Jul 2026:

OL 9 must set the umask value to 077 for all local interactive user accounts.

DISA Rule

SV-271848r1184224_rule

Vulnerability Number

V-271848

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

OL09-00-003060

Severity

CAT II

CCI(s)

CCI-000366 - Implement the security configuration settings.

Weight

Fix Recommendation

Remove the umask statement from all local interactive user's initialization files.

If the account is for an application, the requirement for a umask less restrictive than "077" can be documented with the information system security officer, but the user agreement for access to the account must specify that the local interactive user must log on to their account first and then switch the user to the application account with the correct option to gain the account's environment variables.

Check Contents

Verify OL 9 configures the default umask for all local interactive users to be "077".

Identify the locations of all local interactive user home directories by looking at the "/etc/passwd" file.

Check all local interactive user initialization files for interactive users with the following command:

Note: The example is for a system that is configured to create users home directories in the "/home" directory.

$ grep -ri umask /home/
/home/disauser/.bash_history:grep -i umask /etc/bashrc /etc/csh.cshrc /etc/profile
/home/disauser/.bash_history:grep -i umask /etc/login.defs

If any local interactive user initialization files are found to have a umask statement that sets a value less restrictive than "077", this is a finding.

Vulnerability Number

V-271848

Documentable

False

Rule Version

OL09-00-003060

Severity Override Guidance

Check Content Reference

Target Key

5680