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

OL 9 /etc/shadow file must have mode 0000 to prevent unauthorized access.

DISA Rule

SV-271817r1092163_rule

Vulnerability Number

V-271817

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

OL09-00-002555

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Change the mode of the file "/etc/shadow" to "0000" by running the following command:

$ sudo chmod 0000 /etc/shadow

Check Contents

Verify that OL 9 configures the "/etc/shadow" file to have a mode of "0000" with the following command:

$ stat -c "%a %n" /etc/shadow
0 /etc/shadow

If a value of "0" is not returned, this is a finding.

Vulnerability Number

V-271817

Documentable

False

Rule Version

OL09-00-002555

Severity Override Guidance

Verify that OL 9 configures the "/etc/shadow" file to have a mode of "0000" with the following command:

$ stat -c "%a %n" /etc/shadow
0 /etc/shadow

If a value of "0" is not returned, this is a finding.

Check Content Reference

M

Target Key

5680