Verify User Who Owns /etc/chrony.keys File

An XCCDF Rule

Description

To properly set the owner of /etc/chrony.keys, run the command:

$ sudo chown root /etc/chrony.keys

Rationale

The ownership of the /etc/chrony.keys file by the chrony user is important because this file hosts chrony cryptographic keys. Protection of this file is critical for system security. Assigning the ownership to chrony ensures exclusive control of the chrony cryptographic keys.

ID: xccdf_org.ssgproject.content_rule_file_owner_etc_chrony_keys
Severity: Medium
References: R50
Updated: 5 days ago

- name: Gather the package facts
  package_facts:
    manager: auto
  tags:
  - configure_strategy
  - file_owner_etc_chrony_keys  - low_complexity
  - low_disruption
  - medium_severity
  - no_reboot_needed

- name: Test for existence /etc/chrony.keys
  stat:
    path: /etc/chrony.keys
  register: file_exists
  when: '"kernel" in ansible_facts.packages'
  tags:
  - configure_strategy
  - file_owner_etc_chrony_keys
  - low_complexity
  - low_disruption
  - medium_severity
  - no_reboot_needed

- name: Ensure owner 0 on /etc/chrony.keys
  file:
    path: /etc/chrony.keys
    owner: '0'
  when:
  - '"kernel" in ansible_facts.packages'
  - file_exists.stat is defined and file_exists.stat.exists
  tags:
  - configure_strategy
  - file_owner_etc_chrony_keys
  - low_complexity
  - low_disruption
  - medium_severity
  - no_reboot_needed

# Remediation is applicable only in certain platforms
if rpm --quiet -q kernel; then

chown 0 /etc/chrony.keys

else    >&2 echo 'Remediation is not applicable, nothing was done'
fi

Verify User Who Owns /etc/chrony.keys File

Description

Rationale

Remediation - Ansible

Remediation - Shell Script