forked from ansible-lockdown/RHEL9-CIS
136 lines
4.3 KiB
YAML
136 lines
4.3 KiB
YAML
---
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- name: "3.4.4.2.1 | L1 | PATCH | Ensure ip6tables default deny firewall policy"
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block:
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- name: "3.4.4.2.1 | L1 | Ensure ip6tables default deny firewall policy | Configure ssh to be allowed"
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iptables:
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chain: INPUT
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protocol: tcp
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destination_port: "22"
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jump: ACCEPT
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ip_version: ipv6
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- name: "3.4.4.2.1 | L1 | PATCH | Ensure ip6tables default deny firewall policy | Set drop items"
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iptables:
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policy: DROP
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chain: "{{ item }}"
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ip_version: ipv6
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with_items:
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- INPUT
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- FORWARD
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- OUTPUT
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when:
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- rhel9cis_firewall == "iptables"
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- rhel9cis_rule_3_4_4_2_1
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- rhel9cis_ipv6_required
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tags:
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- level1-server
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- level1-workstation
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- patch
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- rule_3.4.4.2.1
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- name: "3.4.4.2.2 | L1 | PATCH | Ensure ip6tables loopback traffic is configured"
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block:
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- name: "3.4.4.2.2 | L1 | PATCH | Ensure ip6tables loopback traffic is configured | INPUT Loopback ACCEPT"
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iptables:
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action: append
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chain: INPUT
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in_interface: lo
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jump: ACCEPT
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ip_version: ipv6
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- name: "3.4.4.2.2 | L1 | PATCH | Ensure ip6tables loopback traffic is configured | OUTPUT Loopback ACCEPT"
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iptables:
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action: append
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chain: OUTPUT
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out_interface: lo
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jump: ACCEPT
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ip_version: ipv6
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- name: "3.4.4.2.2 | L1 | PATCH | Ensure ip6tables loopback traffic is configured | INPUT Loopback 127.0.0.0/8"
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iptables:
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action: append
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chain: INPUT
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source: ::1
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jump: DROP
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ip_version: ipv6
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when:
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- rhel9cis_firewall == "iptables"
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- rhel9cis_rule_3_4_4_2_2
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- rhel9cis_ipv6_required
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tags:
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- level1-server
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- level1-workstation
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- patch
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- rule_3.4.4.2.2
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- name: "3.4.4.2.3 | L1 | PATCH | Ensure ip6tables outbound and established connections are configured"
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iptables:
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action: append
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chain: '{{ item.chain }}'
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protocol: '{{ item.protocol }}'
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match: state
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ctstate: '{{ item.ctstate }}'
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jump: ACCEPT
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ip_version: ipv6
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with_items:
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- { chain: OUTPUT, protocol: tcp, ctstate: 'NEW,ESTABLISHED' }
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- { chain: OUTPUT, protocol: udp, ctstate: 'NEW,ESTABLISHED' }
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- { chain: OUTPUT, protocol: icmp, ctstate: 'NEW,ESTABLISHED' }
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- { chain: INPUT, protocol: tcp, ctstate: ESTABLISHED }
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- { chain: INPUT, protocol: udp, ctstate: ESTABLISHED }
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- { chain: INPUT, protocol: icmp, ctstate: ESTABLISHED }
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when:
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- rhel9cis_firewall == "iptables"
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- rhel9cis_rule_3_4_4_2_3
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- rhel9cis_ipv6_required
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tags:
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- level1-server
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- level1-workstation
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- patch
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- rule_3.4.4.2.3
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- name: "3.4.4.2.4 | L1 | PATCH | Ensure ip6tables firewall rules exist for all open ports"
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block:
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- name: "3.4.4.2.4 | L1 | AUDIT | Ensure ip6tables firewall rules exist for all open ports | Get list of TCP6 open ports"
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shell: netstat -ant |grep "tcp6.*LISTEN" | awk '{ print $4 }'| sed 's/.*://'
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changed_when: false
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failed_when: false
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register: rhel9cis_3_4_4_2_4_otcp
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- name: "3.4.4.2.4 | L1 | PATCH |Ensure ip6tables firewall rules exist for all open ports| Adjust open tcp6 ports"
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iptables:
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action: append
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chain: INPUT
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protocol: tcp
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destination_port: "{{ item }}"
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match: state
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ctstate: NEW
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jump: ACCEPT
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ip_version: ipv6
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with_items:
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- "{{ rhel9cis_3_4_4_2_4_otcp.stdout_lines }}"
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when: rhel9cis_3_4_4_2_4_otcp.stdout is defined
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when:
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- rhel9cis_firewall == "iptables"
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- rhel9cis_rule_3_4_4_2_4
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- rhel9cis_ipv6_required
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tags:
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- level1-server
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- level1-workstation
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- patch
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- rule_3.4.4.2.4
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- name: "3.4.4.2.5 | L1 | PATCH | Ensure ip6tables service is enabled and active | Check if ip6tables is enabled"
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service:
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name: ip6tables
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enabled: yes
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state: started
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when:
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- rhel9cis_firewall == "iptables"
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- rhel9cis_rule_3_4_4_2_5
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tags:
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- level1-server
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- level1-workstation
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- patch
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- rule_3.4.4.2.5
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