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tidy up sysctl templates

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Signed-off-by: Mark Bolwell <mark.bollyuk@gmail.com>
This commit is contained in:
Mark Bolwell 2022-04-04 15:14:13 +01:00
parent 8b8aef291b
commit fef891dc1b
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GPG key ID: F734FDFC154B83FB
5 changed files with 66 additions and 67 deletions
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30
tasks/section_3/cis_3.1.x.yml
View file

@ -4,7 +4,7 @@
# We are using the rhel9cis_ipv6_required to specify if you have IPv6 in use
- name: "3.1.1 | PATCH | Verify if IPv6 is enabled on the system"
debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/99-sysctl.conf"
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-disable_ipv6.conf"
notify:
- update sysctl
- sysctl flush ipv6 route table
@ -21,12 +21,14 @@
- rule_3.1.1
- name: "3.1.2 | PATCH | Ensure SCTP is disabled"
lineinfile:
dest: /etc/modprobe.d/CIS.conf
regexp: "^(#)?install sctp(\\s|$)"
line: "install sctp /bin/true"
create: yes
mode: 0600
template:
src: "/etc/modprobe.d/modprobe.conf.j2"
dest: "/etc/modprobe.d/{{ item }}.conf"
mode: "0600"
owner: root
group: root
with_items:
- sctp
when:
- rhel9cis_rule_3_1_2
tags:
@ -38,12 +40,14 @@
- rule_3.1.2
- name: "3.1.3 | PATCH | Ensure DCCP is disabled"
lineinfile:
dest: /etc/modprobe.d/CIS.conf
regexp: "^(#)?install dccp(\\s|$)"
line: "install dccp /bin/true"
create: yes
mode: 0600
template:
src: "/etc/modprobe.d/modprobe.conf.j2"
dest: "/etc/modprobe.d/{{ item }}.conf"
mode: "0600"
owner: root
group: root
with_items:
- dccp
when:
- rhel9cis_rule_3_1_3
tags:

40
tasks/section_3/cis_3.2.x.yml
View file

@ -3,22 +3,18 @@
- name: "3.2.1 | PATCH | Ensure IP forwarding is disabled"
block:
- name: "3.2.1 | PATCH | Ensure IP forwarding is disabled | Disable IPv4 forwarding"
sysctl:
name: net.ipv4.ip_forward
value: '0'
state: present
reload: yes
ignoreerrors: yes
notify: sysctl flush ipv4 route table
debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv4_sysctl.conf"
notify:
- update sysctl
- sysctl flush ipv4 route table
- name: "3.2.1 | PATCH | Ensure IP forwarding is disabled | Disable IPv6 forwarding"
sysctl:
name: net.ipv6.conf.all.forwarding
value: '0'
state: present
reload: yes
ignoreerrors: yes
notify: sysctl flush ipv6 route table
debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv6_sysctl.conf"
notify:
- update sysctl
- sysctl flush ipv6 route table
when: rhel9cis_ipv6_required
when:
- not rhel9cis_is_router
@ -32,17 +28,11 @@
- rule_3.2.1
- name: "3.2.2 | PATCH | Ensure packet redirect sending is disabled"
sysctl:
name: '{{ item.name }}'
value: '{{ item.value }}'
sysctl_set: yes
state: present
reload: yes
ignoreerrors: yes
notify: sysctl flush ipv4 route table
with_items:
- { name: net.ipv4.conf.all.send_redirects, value: 0 }
- { name: net.ipv4.conf.default.send_redirects, value: 0 }
debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv4_sysctl.conf"
notify:
- update sysctl
- sysctl flush ipv4 route table
when:
- not rhel9cis_is_router
- rhel9cis_rule_3_2_2

24
tasks/section_3/cis_3.3.x.yml
View file

@ -4,14 +4,14 @@
block:
- name: "3.3.1 | PATCH | Ensure source routed packets are not accepted"
debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/99-sysctl.conf"
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv4_sysctl.conf"
notify:
- update sysctl
- sysctl flush ipv4 route table
- name: "3.3.1 | PATCH | Ensure source routed packets are not accepted"
debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/99-sysctl.conf"
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv6_sysctl.conf"
notify:
- sysctl flush ipv6 route table
- update sysctl
@ -29,14 +29,14 @@
block:
- name: "3.3.2 | PATCH | Ensure ICMP redirects are not accepted"
debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/99-sysctl.conf"
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv4_sysctl.conf"
notify:
- update sysctl
- sysctl flush ipv4 route table
- name: "3.3.2 | PATCH | Ensure ICMP redirects are not accepted"
debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/99-sysctl.conf"
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv6_sysctl.conf"
notify:
- sysctl flush ipv6 route table
- update sysctl
@ -52,7 +52,7 @@
- name: "3.3.3 | PATCH | Ensure secure ICMP redirects are not accepted"
debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/99-sysctl.conf"
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv4_sysctl.conf"
notify: update sysctl
when:
- rhel9cis_rule_3_3_3
@ -65,7 +65,7 @@
- name: "3.3.4 | PATCH | Ensure suspicious packets are logged"
debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/99-sysctl.conf"
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv4_sysctl.conf"
notify: update sysctl
when:
- rhel9cis_rule_3_3_4
@ -78,7 +78,7 @@
- name: "3.3.5 | PATCH | Ensure broadcast ICMP requests are ignored"
debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/99-sysctl.conf"
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv4_sysctl.conf"
notify: update sysctl
when:
- rhel9cis_rule_3_3_5
@ -91,7 +91,7 @@
- name: "3.3.6 | PATCH | Ensure bogus ICMP responses are ignored"
debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/99-sysctl.conf"
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv4_sysctl.conf"
notify: update sysctl
when:
- rhel9cis_rule_3_3_6
@ -104,7 +104,7 @@
- name: "3.3.7 | PATCH | Ensure Reverse Path Filtering is enabled"
debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/99-sysctl.conf"
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv4_sysctl.conf"
notify: update sysctl
when:
- rhel9cis_rule_3_3_7
@ -117,7 +117,7 @@
- name: "3.3.8 | PATCH | Ensure TCP SYN Cookies is enabled"
debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/99-sysctl.conf"
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv4_sysctl.conf"
notify: update sysctl
when:
- rhel9cis_rule_3_3_8
@ -132,14 +132,14 @@
block:
- name: "3.3.9 | PATCH | Ensure IPv6 router advertisements are not accepted"
debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/99-sysctl.conf"
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv4_sysctl.conf"
notify:
- update sysctl
- sysctl flush ipv4 route table
- name: "3.3.9 | PATCH | Ensure IPv6 router advertisements are not accepted"
debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/99-sysctl.conf"
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv6_sysctl"
notify:
- sysctl flush ipv6 route table
- update sysctl