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RHEL9-CIS/tasks/section_3/cis_3.3.x.yml
Mark Bolwell 2de8a39cdc
updated yamllint, company naming, linting and spacing 
Signed-off-by: Mark Bolwell <mark.bollyuk@gmail.com>
2024-12-04 12:00:12 +00:00

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---
- name: "3.3.1 | PATCH | Ensure IP forwarding is disabled"
when:
- not rhel9cis_is_router
- rhel9cis_rule_3_3_1
tags:
- level1-server
- level1-workstation
- sysctl
- patch
- rule_3.3.1
- NIST800-53R5_CM-1
- NIST800-53R5_CM-2
- NIST800-53R5_CM-6
- NIST800-53R5_CM-7
- NIST800-53R5_IA-5
block:
- name: "3.3.1 | PATCH | Ensure IP forwarding is disabled | Disable IPv4 forwarding | Set Fact"
ansible.builtin.set_fact:
rhel9cis_sysctl_update: true
rhel9cis_flush_ipv4_route: true
- name: "3.3.1 | PATCH | Ensure IP forwarding is disabled | Disable IPv4 forwarding"
ansible.builtin.debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv4_sysctl.conf"
- name: "3.3.1 | PATCH | Ensure IP forwarding is disabled | IPv6"
when: rhel9cis_ipv6_required
block:
- name: "3.3.1 | PATCH | Ensure IP forwarding is disabled | Disable IPv6 forwarding | Set Fact"
ansible.builtin.set_fact:
rhel9cis_flush_ipv6_route: true
- name: "3.3.1 | PATCH | Ensure IP forwarding is disabled | Disable IPv6 forwarding"
ansible.builtin.debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv6_sysctl.conf"
- name: "3.3.2 | PATCH | Ensure packet redirect sending is disabled"
when:
- not rhel9cis_is_router
- rhel9cis_rule_3_3_2
tags:
- level1-server
- level1-workstation
- patch
- sysctl
- rule_3.3.2
- NIST800-53R5_CM-1
- NIST800-53R5_CM-2
- NIST800-53R5_CM-6
- NIST800-53R5_CM-7
- NIST800-53R5_IA-5
block:
- name: "3.3.2 | PATCH | Ensure packet redirect sending is disabled | Set Fact"
ansible.builtin.set_fact:
rhel9cis_sysctl_update: true
rhel9cis_flush_ipv4_route: true
- name: "3.3.2 | PATCH | Ensure packet redirect sending is disabled"
ansible.builtin.debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv4_sysctl.conf"
- name: "3.3.3 | PATCH | Ensure bogus ICMP responses are ignored"
when: rhel9cis_rule_3_3_3
tags:
- level1-server
- level1-workstation
- sysctl
- patch
- rule_3.3.3
- NIST800-53R5_CM-1
- NIST800-53R5_CM-2
- NIST800-53R5_CM-6
- NIST800-53R5_CM-7
- NIST800-53R5_IA-5
block:
- name: "3.3.3 | PATCH | Ensure bogus ICMP responses are ignored | Set Fact"
ansible.builtin.set_fact:
rhel9cis_sysctl_update: true
rhel9cis_flush_ipv4_route: true
- name: "3.3.3 | PATCH | Ensure bogus ICMP responses are ignored"
ansible.builtin.debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv4_sysctl.conf"
- name: "3.3.4 | PATCH | Ensure broadcast ICMP requests are ignored"
when: rhel9cis_rule_3_3_4
tags:
- level1-server
- level1-workstation
- sysctl
- patch
- rule_3.3.4
- NIST800-53R5_CM-1
- NIST800-53R5_CM-2
- NIST800-53R5_CM-6
- NIST800-53R5_CM-7
- NIST800-53R5_IA-5
block:
- name: "3.3.4 | PATCH | Ensure broadcast ICMP requests are ignored | Set Fact"
ansible.builtin.set_fact:
rhel9cis_sysctl_update: true
rhel9cis_flush_ipv4_route: true
- name: 3.3.4 | PATCH | Ensure broadcast ICMP requests are ignored"
ansible.builtin.debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv4_sysctl.conf"
- name: "3.3.5 | PATCH | Ensure ICMP redirects are not accepted"
when: rhel9cis_rule_3_3_5
tags:
- level1-server
- level1-workstation
- sysctl
- patch
- rule_3.3.5
- NIST800-53R5_CM-1
- NIST800-53R5_CM-2
- NIST800-53R5_CM-6
- NIST800-53R5_CM-7
- NIST800-53R5_IA-5
block:
- name: "3.3.5 | PATCH | Ensure ICMP redirects are not accepted | Set Fact"
ansible.builtin.set_fact:
rhel9cis_sysctl_update: true
rhel9cis_flush_ipv4_route: true
- name: "3.3.5 | PATCH | Ensure ICMP redirects are not accepted"
ansible.builtin.debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv4_sysctl.conf"
- name: "3.3.5 | PATCH | Ensure ICMP redirects are not accepted | IPv6"
when: rhel9cis_ipv6_required
block:
- name: "3.3.5 | PATCH | Ensure ICMP redirects are not accepted | IPv6 | Set Fact"
ansible.builtin.set_fact:
rhel9cis_flush_ipv6_route: true
- name: "3.3.5 | PATCH | Ensure ICMP redirects are not accepted | IPv6"
ansible.builtin.debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv6_sysctl.conf"
- name: "3.3.6 | PATCH | Ensure secure ICMP redirects are not accepted"
when: rhel9cis_rule_3_3_6
tags:
- level1-server
- level1-workstation
- sysctl
- patch
- rule_3.3.6
- NIST800-53R5_CM-1
- NIST800-53R5_CM-2
- NIST800-53R5_CM-6
- NIST800-53R5_CM-7
- NIST800-53R5_IA-5
block:
- name: "3.3.6 | PATCH | Ensure secure ICMP redirects are not accepted | IPv4 | Set Fact"
ansible.builtin.set_fact:
rhel9cis_sysctl_update: true
rhel9cis_flush_ipv4_route: true
- name: "3.3.6 | PATCH | Ensure secure ICMP redirects are not accepted | IPv4"
ansible.builtin.debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv4_sysctl.conf"
- name: "3.3.6 | PATCH | Ensure secure ICMP redirects are not accepted | IPv6"
when: rhel9cis_ipv6_required
block:
- name: "3.3.6 | PATCH | Ensure secure ICMP redirects are not accepted | IPv6 | Set Fact"
ansible.builtin.set_fact:
rhel9cis_flush_ipv6_route: true
- name: "3.3.6 | PATCH | Ensure secure ICMP redirects are not accepted | IPv6"
ansible.builtin.debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv6_sysctl.conf"
- name: "3.3.7 | PATCH | Ensure Reverse Path Filtering is enabled"
when: rhel9cis_rule_3_3_7
tags:
- level1-server
- level1-workstation
- sysctl
- patch
- rule_3.3.7
- NIST800-53R5_CM-1
- NIST800-53R5_CM-2
- NIST800-53R5_CM-6
- NIST800-53R5_CM-7
- NIST800-53R5_IA-5
block:
- name: "3.3.7 | PATCH | Ensure Reverse Path Filtering is enabled | Set Fact"
ansible.builtin.set_fact:
rhel9cis_sysctl_update: true
rhel9cis_flush_ipv4_route: true
- name: "3.3.7 | PATCH | Ensure Reverse Path Filtering is enabled"
ansible.builtin.debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv4_sysctl.conf"
- name: "3.3.8 | PATCH | Ensure source routed packets are not accepted"
when: rhel9cis_rule_3_3_8
tags:
- level1-server
- level1-workstation
- sysctl
- patch
- rule_3.3.8
- NIST800-53R5_CM-1
- NIST800-53R5_CM-2
- NIST800-53R5_CM-6
- NIST800-53R5_CM-7
- NIST800-53R5_IA-5
block:
- name: "3.3.8 | PATCH | Ensure source routed packets are not accepted | IPv4 | Set Fact"
ansible.builtin.set_fact:
rhel9cis_sysctl_update: true
rhel9cis_flush_ipv4_route: true
- name: "3.3.8 | PATCH | Ensure source routed packets are not accepted | IPv4"
ansible.builtin.debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv4_sysctl.conf"
- name: "3.3.8 | PATCH | Ensure source routed packets are not accepted | IPv6"
when: rhel9cis_ipv6_required
block:
- name: "3.3.8 | PATCH | Ensure source routed packets are not accepted | IPv6 | Set Fact"
ansible.builtin.set_fact:
rhel9cis_flush_ipv6_route: true
- name: "3.3.8 | PATCH | Ensure source routed packets are not accepted | IPv6"
ansible.builtin.debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv6_sysctl.conf"
- name: "3.3.9 | PATCH | Ensure suspicious packets are logged"
when: rhel9cis_rule_3_3_9
tags:
- level1-server
- level1-workstation
- sysctl
- patch
- rule_3.3.9
- NIST800-53R5_AU-3
block:
- name: "3.3.4 | PATCH | Ensure suspicious packets are logged | Set Fact"
ansible.builtin.set_fact:
rhel9cis_sysctl_update: true
rhel9cis_flush_ipv4_route: true
- name: "3.3.4 | PATCH | Ensure suspicious packets are logged"
ansible.builtin.debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv4_sysctl.conf"
- name: "3.3.10 | PATCH | Ensure TCP SYN Cookies is enabled"
when: rhel9cis_rule_3_3_10
tags:
- level1-server
- level1-workstation
- sysctl
- patch
- rule_3.3.10
- NIST800-53R5_CM-1
- NIST800-53R5_CM-2
- NIST800-53R5_CM-6
- NIST800-53R5_CM-7
- NIST800-53R5_IA-5
block:
- name: "3.3.10 | PATCH | Ensure TCP SYN Cookies is enabled | Set Fact"
ansible.builtin.set_fact:
rhel9cis_sysctl_update: true
rhel9cis_flush_ipv4_route: true
- name: "3.3.10 | PATCH | Ensure TCP SYN Cookies is enabled"
ansible.builtin.debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv4_sysctl.conf"
- name: "3.3.11 | PATCH | Ensure IPv6 router advertisements are not accepted"
when:
- rhel9cis_ipv6_required
- rhel9cis_rule_3_3_11
tags:
- level2-server
- level2-workstation
- sysctl
- patch
- rule_3.3.11
- NIST800-53R5_CM-1
- NIST800-53R5_CM-2
- NIST800-53R5_CM-6
- NIST800-53R5_CM-7
- NIST800-53R5_IA-5
block:
- name: "3.3.11 | PATCH | Ensure IPv6 router advertisements are not accepted | IPv6 | Set Fact"
ansible.builtin.set_fact:
rhel9cis_sysctl_update: true
rhel9cis_flush_ipv6_route: true
- name: "3.3.11 | PATCH | Ensure IPv6 router advertisements are not accepted | IPv6"
ansible.builtin.debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv6_sysctl"
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