STIGQter STIGQter: STIG Summary: Oracle Linux 8 Security Technical Implementation Guide Version: 2 Release: 9 Benchmark Date: 01 Jul 2026:

OL 8 default permissions must be defined in such a way that all authenticated users can read and modify only their own files.

DISA Rule

SV-248719r991590_rule

Vulnerability Number

V-248719

Group Title

SRG-OS-000480-GPOS-00228

Rule Version

OL08-00-020351

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Configure OL 8 to define the default permissions for all authenticated users in such a way that the user can read and modify only their own files.

Edit the "UMASK" parameter in the "/etc/login.defs" file to match the example below:

UMASK 077

Check Contents

Verify OL 8 defines default permissions for all authenticated users in such a way that the user can read and modify only their own files with the following command:

$ sudo grep -i "umask" /etc/login.defs

UMASK 077

If the "UMASK" variable is set to "000", this is a finding with the severity raised to a CAT I.

If the value of "UMASK" is not set to "077", "UMASK" is commented out, or "UMASK" is missing completely, this is a finding.

Vulnerability Number

V-248719

Documentable

False

Rule Version

OL08-00-020351

Severity Override Guidance

Verify OL 8 defines default permissions for all authenticated users in such a way that the user can read and modify only their own files with the following command:

$ sudo grep -i "umask" /etc/login.defs

UMASK 077

If the "UMASK" variable is set to "000", this is a finding with the severity raised to a CAT I.

If the value of "UMASK" is not set to "077", "UMASK" is commented out, or "UMASK" is missing completely, this is a finding.

Check Content Reference

M

Target Key

5416