Verify Permissions on SSH Server config file
An XCCDF Rule
Description
To properly set the permissions of /etc/ssh/sshd_config, run the command:
$ sudo chmod 0600 /etc/ssh/sshd_config
Rationale
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.
- ID
- xccdf_org.ssgproject.content_rule_file_permissions_sshd_config
- Severity
- Medium
- References
- Updated
Remediation - Shell Script
# Remediation is applicable only in certain platforms
if [ ! -f /.dockerenv ] && [ ! -f /run/.containerenv ]; then
chmod u-xs,g-xwrs,o-xwrt /etc/ssh/sshd_config
else
Remediation - Ansible
- name: Test for existence /etc/ssh/sshd_config
stat:
path: /etc/ssh/sshd_config
register: file_exists
when: ansible_virtualization_type not in ["docker", "lxc", "openvz", "podman", "container"]
tags: