RHEL 6 DISA STIG

Configure RHEL 6 to be DISA STIG compliant. CAT I findings will be corrected by default. CAT II and CAT III findings can be corrected by setting the appropriate variable to enable those tasks.

Not all findings can be remediated automatically, or they require more complex automation specific to your environment in order to be remediated appropriately. See comments in tasks/cat1.yml, tasks/cat2.yml, tasks/cat3.yml for these findings.

This role will make changes to the system that could break things. This is not an auditing tool but rather a remediation tool to be used for system hardening before or after an audit has been conducted.

Installing from Ansible Galaxy

To install this role with ansible-galaxy use the following command:

ansible-galaxy install -p roles nousdefions.STIG-RHEL6

Based on Red Hat Enterprise Linux 6 STIG Version 1 Release 18 - 2018-01-26.

This repo originated from work done by Sam Doran

Requirements

You should have a general understanding of the nature of the changes this role will make to the system. See the DISA IASE site for details.

Role Variables

There are many role variables defined in defaults/main.yml. Here are the most important ones. Feel free to look through defaults/main.yml to see what other configuration options are available.

Dependencies

python-jmespath

Example Playbooks

Correct CAT I and CAT II findings but don't apply all updates.

- hosts: all
  become: yes

  vars:
    rhel6stig_update_all_packages: no

  roles:
    - role: nousdefions.STIG-RHEL6
      rhel6stig_cat1: yes
      rhel6stig_cat2: yes
      rhel6stig_cat3: no
      when:
          - ansible_os_family == 'RedHat'
          - ansible_distribution_major_version | version_compare('6', '=')

Prompt for the GRUB password.

- hosts: servers
  become: yes

  vars:
    rhel6stig_update_all_packages: no

  vars:
    rhel6stig_cat1: yes
    rhel6stig_cat2: yes
    rhel6stig_cat3: no

  vars_prompt:
    name: "rhel6stig_bootloader_password"
    prompt: "Enter the bootloader password: "
    private: yes
    confirm: yes

  roles:
     - role: nousdefions.STIG-RHEL6

Tags

Each task is tagged with its category, severity, whether or not it is a patch or audit task, and the finding ID, e.g., V-38462. In addition to these four basic tags that all tasks have, there are human-friendly tags such as "ssh" or "dod_logon_banner".

A number of preliminary tasks that do things such as enumerate services on the system and check for the existence of various files will always run unless explicitly skipped by using --skip tags prelim_tasks.

Some examples of using tags:

# Only run tasks that secure ssh
ansible-playbook site.yml --tags ssh

# Don't change SNMP or postfix
ansible-playbook site.yml --skip-tags postfix,mail,snmp

License

MIT