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

OL 9 SSH server configuration file must have mode 0600 or less permissive.

DISA Rule

SV-271778r1092046_rule

Vulnerability Number

V-271778

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

OL09-00-002509

Severity

CAT II

CCI(s)

• CCI-000366 - Implement the security configuration settings.

Weight

10

Fix Recommendation

Configure the "/etc/ssh/sshd_config" permissions to be "0600" with the following command:

$ sudo chmod 0600 /etc/ssh/sshd_config

Check Contents

Verify that OL 9 configures permissions of the "/etc/ssh/sshd_config" file with the following command:

$ ls -al /etc/ssh/sshd_config
rw-------. 1 root root 3669 Feb 22 11:34 /etc/ssh/sshd_config

If the "/etc/ssh/sshd_config" permissions are not "0600", this is a finding.

Vulnerability Number

V-271778

Documentable

False

Rule Version

OL09-00-002509

Severity Override Guidance

Verify that OL 9 configures permissions of the "/etc/ssh/sshd_config" file with the following command:

$ ls -al /etc/ssh/sshd_config
rw-------. 1 root root 3669 Feb 22 11:34 /etc/ssh/sshd_config

If the "/etc/ssh/sshd_config" permissions are not "0600", this is a finding.

Check Content Reference

M

Target Key

5680