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Revert "Merge 'devel' of kris9854/RHEL9-CIS-fix into devel"

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This reverts commit d4471a3016, reversing
changes made to d6ca36a91f.
This commit is contained in:
Kristian 2022-09-26 19:10:53 +02:00
parent 66d8fb8b32
commit da0734c3a8
65 changed files with 461 additions and 801 deletions
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18
tasks/section_3/cis_3.1.x.yml
View file

@ -3,15 +3,11 @@
# The CIS Control wants IPv6 disabled if not in use.
# 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"
block:
- name: "3.1.1 | PATCH | Verify if IPv6 is enabled on the system"
set_fact:
sysctl_update: true
flush_ipv6_route: true
- 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/60-disable_ipv6.conf"
debug:
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
when:
- not rhel9cis_ipv6_required
- rhel9cis_rule_3_1_1
@ -68,9 +64,9 @@
command: rpm -q NetworkManager
changed_when: false
failed_when: false
check_mode: false
check_mode: no
args:
warn: false
warn: no
register: rhel_08_nmcli_available
- name: "3.1.4 | AUDIT | Ensure wireless interfaces are disabled | Check if wifi is enabled"

37
tasks/section_3/cis_3.2.x.yml
View file

@ -2,25 +2,19 @@
- name: "3.2.1 | PATCH | Ensure IP forwarding is disabled"
block:
- name: "3.2.1 | PATCH | Ensure IP forwarding is disabled | Disable IPv4 forwarding | Set Fact"
set_fact:
sysctl_update: true
flush_ipv4_route: true
- name: "3.2.1 | PATCH | Ensure IP forwarding is disabled | Disable IPv4 forwarding"
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 | IPv6"
block:
- name: "3.2.1 | PATCH | Ensure IP forwarding is disabled | Disable IPv6 forwarding | Set Fact"
set_fact:
flush_ipv6_route: true
- name: "3.2.1 | PATCH | Ensure IP forwarding is disabled | Disable IPv6 forwarding"
debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv6_sysctl.conf"
- name: "3.2.1 | PATCH | Ensure IP forwarding is disabled | Disable IPv6 forwarding"
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
@ -34,14 +28,11 @@
- rule_3.2.1
- name: "3.2.2 | PATCH | Ensure packet redirect sending is disabled"
block:
- name: "3.2.2 | PATCH | Ensure packet redirect sending is disabled | Set Fact"
set_fact:
sysctl_update: true
flush_ipv4_route: true
- name: "3.2.2 | PATCH | Ensure packet redirect sending is disabled"
debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv4_sysctl.conf"
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

137
tasks/section_3/cis_3.3.x.yml
View file

@ -2,23 +2,19 @@
- name: "3.3.1 | PATCH | Ensure source routed packets are not accepted"
block:
- name: "3.3.1 | PATCH | Ensure source routed packets are not accepted | IPv4 | Set Fact"
set_fact:
sysctl_update: true
flush_ipv4_route: true
- name: "3.3.1 | PATCH | Ensure source routed packets are not accepted | IPv4"
- 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/60-netipv4_sysctl.conf"
notify:
- update sysctl
- sysctl flush ipv4 route table
- name: "3.3.1 | PATCH | Ensure source routed packets are not accepted | IPv6"
block:
- name: "3.3.1 | PATCH | Ensure source routed packets are not accepted | IPv6 | Set Fact"
set_fact:
flush_ipv6_route: true
- name: "3.3.1 | PATCH | Ensure source routed packets are not accepted | IPv6"
debug:
msg: "Control being set via Handler 'update sysctl' which writes to /etc/sysctl.d/60-netipv6_sysctl.conf"
- 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/60-netipv6_sysctl.conf"
notify:
- sysctl flush ipv6 route table
- update sysctl
when: rhel9cis_ipv6_required
when:
- rhel9cis_rule_3_3_1
@ -31,24 +27,19 @@
- name: "3.3.2 | PATCH | Ensure ICMP redirects are not accepted"
block:
- name: "3.3.2 | PATCH | Ensure ICMP redirects are not accepted | IPv4 | Set Fact"
set_fact:
sysctl_update: true
flush_ipv4_route: true
- name: "3.3.2 | PATCH | Ensure ICMP redirects are not accepted | IPv4"
- 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/60-netipv4_sysctl.conf"
notify:
- update sysctl
- sysctl flush ipv4 route table
- name: "3.3.2 | PATCH | Ensure ICMP redirects are not accepted | IPv6"
block:
- name: "3.3.2 | PATCH | Ensure ICMP redirects are not accepted | IPv6 | Set Fact"
set_fact:
flush_ipv6_route: true
- name: "3.3.2 | PATCH | Ensure ICMP redirects are not accepted | IPv6"
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 ICMP redirects are not accepted"
debug:
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
when: rhel9cis_ipv6_required
when:
- rhel9cis_rule_3_3_2
@ -60,15 +51,9 @@
- rule_3.3.2
- name: "3.3.3 | PATCH | Ensure secure ICMP redirects are not accepted"
block:
- name: "3.3.3 | PATCH | Ensure secure ICMP redirects are not accepted | Set Fact"
set_fact:
sysctl_update: true
flush_ipv4_route: true
- 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/60-netipv4_sysctl.conf"
debug:
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
tags:
@ -79,15 +64,9 @@
- rule_3.3.3
- name: "3.3.4 | PATCH | Ensure suspicious packets are logged"
block:
- name: "3.3.4 | PATCH | Ensure suspicious packets are logged | Set Fact"
set_fact:
sysctl_update: true
flush_ipv4_route: true
- 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/60-netipv4_sysctl.conf"
debug:
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
tags:
@ -98,15 +77,9 @@
- rule_3.3.4
- name: "3.3.5 | PATCH | Ensure broadcast ICMP requests are ignored"
block:
- name: "3.3.5 | PATCH | Ensure broadcast ICMP requests are ignored | Set Fact"
set_fact:
sysctl_update: true
flush_ipv4_route: true
- 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/60-netipv4_sysctl.conf"
debug:
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
tags:
@ -117,15 +90,9 @@
- rule_3.3.5
- name: "3.3.6 | PATCH | Ensure bogus ICMP responses are ignored"
block:
- name: "3.3.6 | PATCH | Ensure bogus ICMP responses are ignored | Set Fact"
set_fact:
sysctl_update: true
flush_ipv4_route: true
- 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/60-netipv4_sysctl.conf"
debug:
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
tags:
@ -136,15 +103,9 @@
- rule_3.3.6
- name: "3.3.7 | PATCH | Ensure Reverse Path Filtering is enabled"
block:
- name: "3.3.7 | PATCH | Ensure Reverse Path Filtering is enabled | Set Fact"
set_fact:
sysctl_update: true
flush_ipv4_route: true
- 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/60-netipv4_sysctl.conf"
debug:
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
tags:
@ -155,15 +116,9 @@
- rule_3.3.7
- name: "3.3.8 | PATCH | Ensure TCP SYN Cookies is enabled"
block:
- name: "3.3.8 | PATCH | Ensure TCP SYN Cookies is enabled | Set Fact"
set_fact:
sysctl_update: true
flush_ipv4_route: true
- 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/60-netipv4_sysctl.conf"
debug:
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
tags:
@ -175,14 +130,20 @@
- name: "3.3.9 | PATCH | Ensure IPv6 router advertisements are not accepted"
block:
- name: "3.3.9 | PATCH | Ensure IPv6 router advertisements are not accepted | IPv6 | Set Fact"
set_fact:
sysctl_update: true
flush_ipv6_route: true
- 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/60-netipv4_sysctl.conf"
notify:
- update sysctl
- sysctl flush ipv4 route table
- name: "3.3.9 | PATCH | Ensure IPv6 router advertisements are not accepted | IPv6"
- 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/60-netipv6_sysctl"
notify:
- sysctl flush ipv6 route table
- update sysctl
when: rhel9cis_ipv6_required
when:
- rhel9cis_ipv6_required
- rhel9cis_rule_3_3_9

22
tasks/section_3/cis_3.4.1.x.yml
View file

@ -49,7 +49,7 @@
systemd:
name: nftables
state: stopped
masked: true
masked: yes
when:
- rhel9cis_firewalld_nftables_state == "masked"
@ -73,7 +73,7 @@
systemd:
name: firewalld
state: started
enabled: true
enabled: yes
when:
- rhel9cis_rule_3_4_1_4
tags:
@ -83,20 +83,10 @@
- patch
- firewalld
- rule_3_4_1_4
- name: "3.4.1.5 | PATCH | Ensure firewalld default zone is set"
block:
- name: "3.4.1.5 | AUDIT | Ensure firewalld default zone is set"
shell: "firewall-cmd --get-default-zone | grep {{ rhel9cis_default_zone }}"
changed_when: false
failed_when: ( firewalld_zone_set.rc not in [ 0, 1 ] )
register: firewalld_zone_set
- name: "3.4.1.5 | AUDIT | Ensure firewalld default zone is set"
command: firewall-cmd --set-default-zone="{{ rhel9cis_default_zone }}"
when:
- firewalld_zone_set.rc != 0
- name: "3.4.1.5 | PATCH | Ensure firewalld default zone is set"
command: firewall-cmd --set-default-zone="{{ rhel9cis_default_zone }}"
when:
- rhel9cis_firewall == "firewalld"
- rhel9cis_rule_3_4_1_5
tags:
- level1-server
@ -112,7 +102,7 @@
shell: "nmcli -t connection show | awk -F: '{ if($4){print $4} }' | while read INT; do firewall-cmd --get-active-zones | grep -B1 $INT; done"
changed_when: false
failed_when: false
check_mode: false
check_mode: no
register: rhel9cis_3_4_1_6_interfacepolicy
- name: "3.4.1.6 | AUDIT | Ensure network interfaces are assigned to appropriate zone | Get list of interfaces and polocies | Show the interface to policy"
@ -135,7 +125,7 @@
shell: "firewall-cmd --get-active-zones | awk '!/:/ {print $1}' | while read ZN; do firewall-cmd --list-all --zone=$ZN; done"
changed_when: false
failed_when: false
check_mode: false
check_mode: no
register: rhel9cis_3_4_1_7_servicesport
- name: "3.4.1.7 | AUDIT | Ensure firewalld drops unnecessary services and ports | Show services and ports"

49
tasks/section_3/cis_3.4.2.x.yml
View file

@ -5,7 +5,6 @@
name: nftables
state: present
when:
- rhel9cis_firewall == "nftables"
- rhel9cis_rule_3_4_2_1
tags:
- level1-server
@ -18,11 +17,22 @@
# The control allows the service it be masked or not installed
# We have chosen not installed
- name: "3.4.2.2 | PATCH | Ensure firewalld is either not installed or masked with nftables"
package:
name: firewalld
state: absent
block:
- name: "3.4.2.2 | PATCH | Ensure firewalld is either not installed or masked with nftables | mask service"
systemd:
name: firewalld
masked: true
state: stopped
when:
- rhel9cis_nftables_firewalld_state == "masked"
- name: "3.4.2.2 | PATCH | Ensure firewalld is either not installed or masked with nftables | pkg removed"
package:
name: firewalld
state: absent
when:
- rhel9cis_nftables_firewalld_state == "absent"
when:
- rhel9cis_firewall == "nftables"
- rhel9cis_rule_3_4_2_2
tags:
- level1-server
@ -39,7 +49,7 @@
name: "{{ item }}"
enabled: false
masked: true
ignore_errors: true # noqa ignore-errors
ignore_errors: true
with_items:
- iptables
- ip6tables
@ -49,7 +59,6 @@
name: iptables-service
state: absent
when:
- rhel9cis_firewall == "nftables"
- rhel9cis_rule_3_4_2_3
tags:
- level1-server
@ -96,26 +105,17 @@
- name: "3.4.2.5 | AUDIT | Ensure an nftables table exists | Alert on no tables"
debug:
msg:
- "Warning!! You currently have no nft tables, please review your setup"
- "Warning! You currently have no nft tables, please review your setup"
- 'Use the command "nft create table inet <table name>" to create a new table'
when:
- rhel9cis_3_4_2_5_nft_tables.stdout | length == 0
- not rhel9cis_nft_tables_autonewtable
- name: "3.4.2.5 | AUDIT | Ensure an nftables table exists | Alert on no tables | warning count"
set_fact:
control_number: "{{ control_number }} + [ 'rule_3.4.2.5' ]"
warn_count: "{{ warn_count | int + 1 }}"
when:
- rhel9cis_3_4_2_5_nft_tables.stdout | length == 0
- not rhel9cis_nft_tables_autonewtable
- name: "3.4.2.5 | PATCH | Ensure a table exists | Create table if needed"
command: nft create table inet "{{ rhel9cis_nft_tables_tablename }}"
failed_when: false
failed_when: no
when: rhel9cis_nft_tables_autonewtable
when:
- rhel9cis_firewall == "nftables"
- rhel9cis_rule_3_4_2_5
tags:
- level1-server
@ -159,15 +159,14 @@
- name: "3.4.2.6 | PATCH | Ensure nftables base chains exist | Create chains if needed"
shell: "{{ item }}"
args:
warn: false
failed_when: false
warn: no
failed_when: no
with_items:
- nft create chain inet "{{ rhel9cis_nft_tables_tablename }}" input { type filter hook input priority 0 \; }
- nft create chain inet "{{ rhel9cis_nft_tables_tablename }}" forward { type filter hook forward priority 0 \; }
- nft create chain inet "{{ rhel9cis_nft_tables_tablename }}" output { type filter hook output priority 0 \; }
when: rhel9cis_nft_tables_autochaincreate
when:
- rhel9cis_firewall == "nftables"
- rhel9cis_rule_3_4_2_6
tags:
- level1-server
@ -209,7 +208,6 @@
command: nft add rule inet "{{ rhel9cis_nft_tables_tablename }}" input ip6 saddr ::1 counter drop
when: '"ip6 saddr ::1 counter packets 0 bytes 0 drop" not in rhel9cis_3_4_2_7_ip6saddr.stdout'
when:
- rhel9cis_firewall == "nftables"
- rhel9cis_rule_3_4_2_7
tags:
- level1-server
@ -257,7 +255,6 @@
command: nft add rule inet "{{ rhel9cis_nft_tables_tablename }}" output ip protocol icmp ct state new,related,established accept
when: '"ip protocol icmp ct state established,related,new accept" not in rhel9cis_3_4_2_8_outconnectionrule.stdout'
when:
- rhel9cis_firewall == "nftables"
- rhel9cis_rule_3_4_2_8
tags:
- level1-server
@ -309,7 +306,6 @@
command: nft chain inet "{{ rhel9cis_nft_tables_tablename }}" output { policy drop \; }
when: '"type filter hook output priority 0; policy drop;" not in rhel9cis_3_4_2_9_outputpolicy.stdout'
when:
- rhel9cis_firewall == "nftables"
- rhel9cis_rule_3_4_2_9
tags:
- level1-server
@ -322,9 +318,8 @@
- name: "3.4.2.10 | PATCH | Ensure nftables service is enabled"
service:
name: nftables
enabled: true
enabled: yes
when:
- rhel9cis_firewall == "nftables"
- rhel9cis_rule_3_4_2_10
tags:
- level1-server
@ -337,11 +332,9 @@
- name: "3.4.2.11 | PATCH | Ensure nftables rules are permanent"
lineinfile:
path: /etc/sysconfig/nftables.conf
state: present
insertafter: EOF
line: include "/etc/nftables/inet-{{ rhel9cis_nft_tables_tablename }}"
when:
- rhel9cis_firewall == "nftables"
- rhel9cis_rule_3_4_2_11
tags:
- level1-server