Verify ownership of System Login Banner

Description

To properly set the owner of /etc/issue, run the command:

$ sudo chown root /etc/issue 

Rationale

Display of a standardized and approved use notification before granting access to the operating system ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance.

Proper ownership will ensure that only root user can modify the banner.

Remediation

Shell script

The following script can be run on the host to remediate the issue.

chown 0 /etc/issue

Ansible playbook

The following playbook can be run with Ansible to remediate the issue.

- name: Test for existence /etc/issue
 stat:
 path: /etc/issue
 register: file\_exists
 tags:
 - configure\_strategy
 - file\_owner\_etc\_issue
 - low\_complexity
 - low\_disruption
 - medium\_severity
 - no\_reboot\_needed

- name: Ensure owner 0 on /etc/issue
 file:
 path: /etc/issue
 owner: '0'
 when: file\_exists.stat is defined and file\_exists.stat.exists
 tags:
 - configure\_strategy
 - file\_owner\_etc\_issue
 - low\_complexity
 - low\_disruption
 - medium\_severity
 - no\_reboot\_needed