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removed iptables - not valid in rh9

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Signed-off-by: Mark Bolwell <mark.bollyuk@gmail.com>
This commit is contained in:
Mark Bolwell 2022-04-06 17:29:57 +01:00
parent 82d1d18504
commit b8bb7912a1
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GPG key ID: F734FDFC154B83FB
6 changed files with 2 additions and 426 deletions
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18
defaults/main.yml
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@ -205,21 +205,7 @@ rhel9cis_rule_3_4_2_8: true
rhel9cis_rule_3_4_2_9: true
rhel9cis_rule_3_4_2_10: true
rhel9cis_rule_3_4_2_11: true
rhel9cis_rule_3_4_3_1_1: true
rhel9cis_rule_3_4_3_1_2: true
rhel9cis_rule_3_4_3_1_3: true
rhel9cis_rule_3_4_3_2_1: true
rhel9cis_rule_3_4_3_2_2: true
rhel9cis_rule_3_4_3_2_3: true
rhel9cis_rule_3_4_3_2_4: true
rhel9cis_rule_3_4_3_2_5: true
rhel9cis_rule_3_4_3_2_6: true
rhel9cis_rule_3_4_3_3_1: true
rhel9cis_rule_3_4_3_3_2: true
rhel9cis_rule_3_4_3_3_3: true
rhel9cis_rule_3_4_3_3_4: true
rhel9cis_rule_3_4_3_3_5: true
rhel9cis_rule_3_4_3_3_6: true
# Section 4 rules
rhel9cis_rule_4_1_1_1: true
@ -490,8 +476,6 @@ rhel9cis_nft_tables_autonewtable: true
rhel9cis_nft_tables_tablename: filter
rhel9cis_nft_tables_autochaincreate: true
#### iptables
rhel9cis_iptables_firewalld_state: masked
# Warning Banner Content (issue, issue.net, motd)
rhel9cis_warning_banner: |

59
tasks/section_3/cis_3.4.3.1.x.yml
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@ -1,59 +0,0 @@
---
- name: "3.4.3.1.1 | PATCH | Ensure iptables packages are installed"
package:
name:
- iptables
- iptables-services
state: present
when:
- rhel9cis_rule_3_4_3_1_1
tags:
- level1-server
- level1-workstation
- automated
- patch
- iptables
- rule_3.4.3.1.1
- name: "3.4.3.1.2 | PATCH | Ensure nftables is not installed with iptables"
package:
name: nftables
state: absent
when:
- rhel9cis_rule_3_4_3_1_2
tags:
- level1-server
- level1-workstation
- automated
- patch
- iptables
- rule_3.4.3.1.2
# The control allows the service it be masked or not installed
# We have chosen not installed
- name: "3.4.3.1.3 | PATCH | Ensure firewalld is either not installed or masked with iptables"
block:
- name: "3.4.3.1.3 | PATCH | Ensure firewalld is either not installed or masked with iptables | mask service"
systemd:
name: firewalld
masked: true
state: stopped
when:
- rhel9cis_iptables_firewalld_state == "masked"
- name: "3.4.3.1.3 | PATCH | Ensure firewalld is either not installed or masked with iptables | mask service"
package:
name: firewalld
state: absent
when:
- rhel9cis_iptables_firewalld_state == "absent"
when:
- rhel9cis_rule_3_4_3_1_3
tags:
- level1-server
- level1-workstation
- automated
- patch
- iptables
- rule_3.4.3.1.3

163
tasks/section_3/cis_3.4.3.2.x.yml
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@ -1,163 +0,0 @@
---
- name: "3.4.3.2.1 | PATCH | Ensure iptables loopback traffic is configured"
block:
- name: "3.4.3.2.1 | PATCH | Ensure iptables loopback traffic is configured | INPUT Loopback ACCEPT"
iptables:
action: append
chain: INPUT
in_interface: lo
jump: ACCEPT
- name: "3.4.3.2.1 | PATCH | Ensure iptables loopback traffic is configured | OUTPUT Loopback ACCEPT"
iptables:
action: append
chain: OUTPUT
out_interface: lo
jump: ACCEPT
- name: "3.4.3.2.1 | PATCH | Ensure iptables loopback traffic is configured | INPUT Loopback 127.0.0.0/8"
iptables:
action: append
chain: INPUT
source: 127.0.0.0/8
jump: DROP
when:
- rhel9cis_rule_3_4_3_2_1
tags:
- level1-server
- level1-workstation
- automated
- patch
- iptables
- rule_3.4.3.2.1
- name: "3.4.3.2.2 | PATCH | Ensure iptables outbound and established connections are configured"
iptables:
action: append
chain: '{{ item.chain }}'
protocol: '{{ item.protocol }}'
match: state
ctstate: '{{ item.ctstate }}'
jump: ACCEPT
with_items:
- { chain: OUTPUT, protocol: tcp, ctstate: 'NEW,ESTABLISHED' }
- { chain: OUTPUT, protocol: udp, ctstate: 'NEW,ESTABLISHED' }
- { chain: OUTPUT, protocol: icmp, ctstate: 'NEW,ESTABLISHED' }
- { chain: INPUT, protocol: tcp, ctstate: ESTABLISHED }
- { chain: INPUT, protocol: udp, ctstate: ESTABLISHED }
- { chain: INPUT, protocol: icmp, ctstate: ESTABLISHED }
when:
- rhel9cis_rule_3_4_3_2_2
tags:
- level1-server
- level1-workstation
- manual
- patch
- iptables
- rule_3.4.3.2.2
- name: "3.4.3.2.3 | PATCH | Ensure iptables rules exist for all open ports"
block:
- name: "3.4.3.2.3 | AUDIT | Ensure iptables rules exist for all open ports | Get list of TCP open ports"
shell: netstat -ant |grep "tcp.*LISTEN" | awk '{ print $4 }'| sed 's/.*://'
changed_when: false
failed_when: false
register: rhel9cis_3_4_3_2_3_otcp
- name: "3.4.3.2.3 | AUDIT | Ensure iptables rules exist for all open ports | Get the list of udp open ports"
shell: netstat -ant |grep "udp.*LISTEN" | awk '{ print $4 }'| sed 's/.*://'
changed_when: false
failed_when: false
register: rhel9cis_3_4_3_2_3_oudp
- name: "3.4.3.2.3 | PATCH | Ensure iptables rules exist for all open ports | Adjust open tcp ports"
iptables:
action: append
chain: INPUT
protocol: tcp
destination_port: "{{ item }}"
match: state
ctstate: NEW
jump: ACCEPT
with_items:
- "{{ rhel9cis_3_4_3_2_3_otcp.stdout_lines }}"
when: rhel9cis_3_4_3_2_3_otcp.stdout is defined
- name: "3.4.3.2.3 | PATCH | Ensure iptables rules exist for all open ports | Adjust open udp ports"
iptables:
action: append
chain: INPUT
protocol: udp
destination_port: "{{ item }}"
match: state
ctstate: NEW
jump: ACCEPT
with_items:
- "{{ rhel9cis_3_4_3_2_3_oudp.stdout_lines }}"
when: rhel9cis_3_4_3_2_3_otcp.stdout is defined
when:
- rhel9cis_rule_3_4_3_2_3
tags:
- level1-server
- level1-workstation
- automated
- patch
- iptables
- rule_3.4.3.2.3
- name: "3.4.3.2.4 | PATCH | Ensure iptables default deny firewall policy"
block:
- name: "3.4.3.2.4 | PATCH | Ensure iptables default deny firewall policy | Configure ssh to be allowed"
iptables:
chain: INPUT
protocol: tcp
destination_port: "22"
jump: ACCEPT
- name: "3.4.3.2.4 | PATCH | Ensure iptables default deny firewall policy | Set drop items"
iptables:
policy: DROP
chain: "{{ item }}"
with_items:
- INPUT
- FORWARD
- OUTPUT
when:
- rhel9cis_rule_3_4_3_2_4
tags:
- level1-server
- level1-workstation
- automated
- patch
- iptables
- rule_3.4.3.2.4
- name: "3.4.3.2.5 | PATCH | Ensure iptables rules are saved"
iptables_state:
state: saved
path: /etc/sysconfig/iptables
when:
- rhel9cis_rule_3_4_3_2_5
tags:
- level1-server
- level1-workstation
- automated
- patch
- iptables
- rule_3.4.3.2.5
- name: "3.4.3.2.6 | PATCH | Ensure iptables service is enabled and active"
service:
name: iptables
enabled: yes
state: started
when:
- rhel9cis_rule_3_4_3_2_6
tags:
- level1-server
- level1-workstation
- automated
- patch
- iptables
- rule_3.4.3.2.6

152
tasks/section_3/cis_3.4.3.3.x.yml
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@ -1,152 +0,0 @@
---
- name: "3.4.3.3.1 | PATCH | Ensure ip6tables loopback traffic is configured"
block:
- name: "3.4.3.3.1 | PATCH | Ensure ip6tables loopback traffic is configured | INPUT Loopback ACCEPT"
iptables:
action: append
chain: INPUT
in_interface: lo
jump: ACCEPT
ip_version: ipv6
- name: "3.4.3.3.1 | PATCH | Ensure ip6tables loopback traffic is configured | OUTPUT Loopback ACCEPT"
iptables:
action: append
chain: OUTPUT
out_interface: lo
jump: ACCEPT
ip_version: ipv6
- name: "3.4.3.3.1 | PATCH | Ensure ip6tables loopback traffic is configured | INPUT Loopback 127.0.0.0/8"
iptables:
action: append
chain: INPUT
source: ::1
jump: DROP
ip_version: ipv6
when:
- rhel9cis_rule_3_4_3_3_1
tags:
- level1-server
- level1-workstation
- automated
- patch
- ip6tables
- rule_3.4.3.3.1
- name: "3.4.3.3.2 | PATCH | Ensure ip6tables outbound and established connections are configured"
iptables:
action: append
chain: '{{ item.chain }}'
protocol: '{{ item.protocol }}'
match: state
ctstate: '{{ item.ctstate }}'
jump: ACCEPT
ip_version: ipv6
with_items:
- { chain: OUTPUT, protocol: tcp, ctstate: 'NEW,ESTABLISHED' }
- { chain: OUTPUT, protocol: udp, ctstate: 'NEW,ESTABLISHED' }
- { chain: OUTPUT, protocol: icmp, ctstate: 'NEW,ESTABLISHED' }
- { chain: INPUT, protocol: tcp, ctstate: ESTABLISHED }
- { chain: INPUT, protocol: udp, ctstate: ESTABLISHED }
- { chain: INPUT, protocol: icmp, ctstate: ESTABLISHED }
when:
- rhel9cis_rule_3_4_3_3_2
tags:
- level1-server
- level1-workstation
- manual
- patch
- ip6tables
- rule_3.4.3.3.2
- name: "3.4.3.3.3 | PATCH | Ensure ip6tables firewall rules exist for all open ports"
block:
- name: "3.4.3.3.3 | AUDIT | Ensure ip6tables firewall rules exist for all open ports | Get list of TCP6 open ports"
shell: netstat -ant |grep "tcp6.*LISTEN" | awk '{ print $4 }'| sed 's/.*://'
changed_when: false
failed_when: false
register: rhel9cis_3_4_3_3_3_otcp
- name: "3.4.3.3.3 | PATCH |Ensure ip6tables firewall rules exist for all open ports| Adjust open tcp6 ports"
iptables:
action: append
chain: INPUT
protocol: tcp
destination_port: "{{ item }}"
match: state
ctstate: NEW
jump: ACCEPT
ip_version: ipv6
with_items:
- "{{ rhel9cis_3_4_3_3_3_otcp.stdout_lines }}"
when: rhel9cis_3_4_3_3_3_otcp.stdout is defined
when:
- rhel9cis_rule_3_4_3_3_3
tags:
- level1-server
- level1-workstation
- automated
- patch
- ip6tables
- rule_3.4.3.3.3
- name: "3.4.3.3.4 | PATCH | Ensure ip6tables default deny firewall policy"
block:
- name: "3.4.3.3.4 | PATCH | Ensure ip6tables default deny firewall policy | Configure ssh to be allowed"
iptables:
chain: INPUT
protocol: tcp
destination_port: "22"
jump: ACCEPT
ip_version: ipv6
- name: "3.4.3.3.4 | PATCH | Ensure ip6tables default deny firewall policy | Set drop items"
iptables:
policy: DROP
chain: "{{ item }}"
ip_version: ipv6
with_items:
- INPUT
- FORWARD
- OUTPUT
when:
- rhel9cis_rule_3_4_3_3_4
tags:
- level1-server
- level1-workstation
- automated
- patch
- ip6tables
- rule_3.4.3.3.4
- name: "3.4.3.3.5 | PATCH | Ensure ip6tables rules are saved"
iptables_state:
state: saved
path: /etc/sysconfig/ip6tables
ip_version: ipv6
when:
- rhel9cis_rule_3_4_3_3_5
tags:
- level1-server
- level1-workstation
- automated
- patch
- ip6tables
- rule_3.4.3.3.5
- name: "3.4.3.3.6 | PATCH | Ensure ip6tables service is enabled and active"
service:
name: ip6tables
enabled: yes
state: started
when:
- rhel9cis_rule_3_4_3_3_6
tags:
- level1-server
- level1-workstation
- automated
- patch
- ip6tables
- rule_3.4.3.3.6

14
tasks/section_3/main.yml
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@ -19,17 +19,3 @@
when:
- rhel9cis_firewall == "nftables"
- name: "SECTION | 3.4.3.1.x | Configure iptables"
include_tasks: cis_3.4.3.1.x.yml
when:
- rhel9cis_firewall == "iptables"
- name: "SECTION | 3.4.3.2.x | Configure iptables IPv4"
include_tasks: cis_3.4.3.2.x.yml
when:
- rhel9cis_firewall == "iptables"
- name: "SECTION | 3.4.3.3.x | Configure iptables IPv6"
include_tasks: cis_3.4.3.3.x.yml
when:
- ( rhel9cis_firewall == "iptables" and rhel9cis_ipv6_required )

22
templates/ansible_vars_goss.yml.j2
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@ -200,25 +200,6 @@ rhel9cis_rule_3_4_2_8: {{ rhel9cis_rule_3_4_2_8 }}
rhel9cis_rule_3_4_2_9: {{ rhel9cis_rule_3_4_2_9 }}
rhel9cis_rule_3_4_2_10: {{ rhel9cis_rule_3_4_2_10 }}
rhel9cis_rule_3_4_2_11: {{ rhel9cis_rule_3_4_2_11 }}
# 3.4.3.1 Configure iptables
rhel9cis_rule_3_4_3_1_1: {{ rhel9cis_rule_3_4_3_1_1 }}
rhel9cis_rule_3_4_3_1_2: {{ rhel9cis_rule_3_4_3_1_2 }}
rhel9cis_rule_3_4_3_1_3: {{ rhel9cis_rule_3_4_3_1_3 }}
# 3.4.3.2 iptables ipv4
rhel9cis_rule_3_4_3_2_1: {{ rhel9cis_rule_3_4_3_2_1 }}
rhel9cis_rule_3_4_3_2_2: {{ rhel9cis_rule_3_4_3_2_2 }}
rhel9cis_rule_3_4_3_2_3: {{ rhel9cis_rule_3_4_3_2_3 }}
rhel9cis_rule_3_4_3_2_4: {{ rhel9cis_rule_3_4_3_2_4 }}
rhel9cis_rule_3_4_3_2_5: {{ rhel9cis_rule_3_4_3_2_5 }}
rhel9cis_rule_3_4_3_2_6: {{ rhel9cis_rule_3_4_3_2_6 }}
# 3.4.3.2 iptables ipv6
rhel9cis_rule_3_4_3_3_1: {{ rhel9cis_rule_3_4_3_3_1 }}
rhel9cis_rule_3_4_3_3_2: {{ rhel9cis_rule_3_4_3_3_2 }}
rhel9cis_rule_3_4_3_3_3: {{ rhel9cis_rule_3_4_3_3_3 }}
rhel9cis_rule_3_4_3_3_4: {{ rhel9cis_rule_3_4_3_3_4 }}
rhel9cis_rule_3_4_3_3_5: {{ rhel9cis_rule_3_4_3_3_5 }}
rhel9cis_rule_3_4_3_3_6: {{ rhel9cis_rule_3_4_3_3_6 }}
# Section 4 rules
# 4.1 Configure System Accounting
@ -459,8 +440,7 @@ rhel9cis_nftables_firewalld_state: {{ rhel9cis_nftables_firewalld_state }}
rhel9cis_nft_tables_autonewtable: {{ rhel9cis_nft_tables_autonewtable }}
rhel9cis_nft_tables_tablename: {{ rhel9cis_nft_tables_tablename }}
rhel9cis_nft_tables_autochaincreate: {{ rhel9cis_nft_tables_autochaincreate }}
#### iptables
rhel9cis_iptables_firewalld_state: {{ rhel9cis_iptables_firewalld_state }}
# Section 4