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V-271778

CAT II (Medium)

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

Rule ID

SV-271778r1092046_rule

STIG

Oracle Linux 9 Security Technical Implementation Guide

Version

V1R5

CCIs

CCI-000366

Discussion

Service configuration files enable or disable features of their respective services that if configured incorrectly can lead to insecure and vulnerable configurations. Therefore, service configuration files should be owned by the correct group to prevent unauthorized changes.

Check Content

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.

Fix Text

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

$ sudo chmod 0600 /etc/ssh/sshd_config