diff --git a/defaults/main.yml b/defaults/main.yml index fbe81eb..f620a72 100644 --- a/defaults/main.yml +++ b/defaults/main.yml @@ -802,6 +802,8 @@ rhel9cis_tftp_client: false ## Control 3.1.1 - Ensure IPv6 status is identified # This variable governs whether ipv6 is enabled or disabled. rhel9cis_ipv6_required: true +# rhel9cis_ipv6_disable defines the method of disabling IPv6, sysctl vs kernel +rhel9cis_ipv6_disable_method: "sysctl" ## Control 3.1.2 - Ensure wireless interfaces are disabled # if wireless adapter found allow network manager to be installed diff --git a/tasks/section_3/cis_3.1.x.yml b/tasks/section_3/cis_3.1.x.yml index a20c0e9..ff9ec46 100644 --- a/tasks/section_3/cis_3.1.x.yml +++ b/tasks/section_3/cis_3.1.x.yml @@ -16,15 +16,30 @@ - rule_3.1.1 - NIST800-53R5_CM-7 block: - - name: "3.1.1 | PATCH | Ensure IPv6 status is identified | refresh" + - name: "3.1.1 | PATCH | Ensure IPv6 status is identified | Set vars for sysctl template" + when: "'sysctl' in rhel9cis_ipv6_disable_method" ansible.builtin.set_fact: rhel9cis_sysctl_update: true rhel9cis_flush_ipv6_route: true - - name: "3.1.1 | PATCH | Ensure IPv6 status is identified | disable" + - name: "3.1.1 | AUDIT | Ensure IPv6 status is identified | Message out implementation info" + when: "'sysctl' in rhel9cis_ipv6_disable_method" ansible.builtin.debug: msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-disable_ipv6.conf" + - name: "3.1.1 | AUDIT | Ensure IPv6 status is identified | Find IPv6 status" + when: "'kernel' in rhel9cis_ipv6_disable_method" + ansible.builtin.command: grubby --info=ALL + changed_when: false + failed_when: false + register: discovered_rhel9cis_3_1_1_ipv6_status + + - name: "3.1.1 | PATCH | Ensure IPv6 status is identified | Disable IPV6 via Kernel" + when: + - "'kernel' in rhel9cis_ipv6_disable_method" + - "'ipv6.disable=1' not in discovered_rhel9cis_3_1_1_ipv6_status.stdout" + ansible.builtin.shell: grubby --update-kernel=ALL --args="ipv6.disable=1" + - name: "3.1.2 | PATCH | Ensure wireless interfaces are disabled" when: - rhel9cis_rule_3_1_2 diff --git a/templates/etc/sysctl.d/60-disable_ipv6.conf.j2 b/templates/etc/sysctl.d/60-disable_ipv6.conf.j2 index bdded40..b4b5318 100644 --- a/templates/etc/sysctl.d/60-disable_ipv6.conf.j2 +++ b/templates/etc/sysctl.d/60-disable_ipv6.conf.j2 @@ -4,4 +4,7 @@ {% if rhel9cis_rule_3_1_1 and not rhel9cis_ipv6_required %} net.ipv6.conf.all.disable_ipv6 = 1 net.ipv6.conf.default.disable_ipv6 = 1 +{% for interface in ansible_interfaces %} +net.ipv6.conf.{{ interface }}.disable_ipv6 = 1 +{% endfor %} {% endif %}