- CIS - Ubuntu 22.04
- Notes
- Requirements
- Role Variables
- run only setup per section
- variables not included in CIS as additional extend
- variables which are recommended by CIS, but disable in this role by default
- variable special usable between server and client
- variables to check and set for own purpose
- variable rules implemented, but only print information for manual check
- Dependencies
- Example Playbook
- Definitions
- CIS - List of Recommendations
- License
- Resources
Configure Ubuntu 22.04 to be CIS compliant.
Tested with:
- Ubuntu 22.04
- Ubuntu 23.04
This role will make changes to the system that could break things.
This is not an auditing tool but rather a remediation tool to be used after an audit has been conducted.
This role was developed against a clean install of the Operating System.
If you are implementing to an existing system please review this role for any site specific changes that are needed.
Based on CIS Ubuntu Linux 22.04 LTS Benchmark v2.0.0.
- section :: 6.2.1.2 Configure systemd-journal-remote
- is configured, but not in deep tested (default not setup with remote logging)
- section :: 4.2 Configure nftables
- is configured, but not in deep tested (default ufw is used from section 4.1)
- section :: 4.3 Configure iptables
- is configured, but not in deep tested (default ufw is used from section 4.1)
- section :: 5.3 Pluggable Authentication Modules :: 5.4 User Accounts and Environment
- could be tested deeper, base tests are performed and for secure only used for fresh os install
You should carefully read through the tasks to make sure these changes will not break your systems before running this playbook.
To start working in this Role you just need to install Python and Ansible:
$sudo apt install python3 python3-pip sshpass
# if python >= 3.11 used, add also '--break-system-packages'
$python3 -m pip install ansible ansible-lint yamllintFor run tests with molecule, you need also to install:
# if python >= 3.11 used, add also '--break-system-packages'
$python3 -m pip install molecule molecule-plugins[docker]default all section are active and will performed
cis_ubuntu2204_section1: true
cis_ubuntu2204_section2: true
cis_ubuntu2204_section3: true
cis_ubuntu2204_section4: true
cis_ubuntu2204_section5: true
cis_ubuntu2204_section6: true
cis_ubuntu2204_section7: true# additional configs for remove all comments in /etc/ssh/sshd_config
cis_ubuntu2204_rule_5_1_0: true
# additional configs for ssh which not defined set by CIS
cis_ubuntu2204_rule_5_1_23: true
# the rules 'cis_ubuntu2204_rule_5_1_19', 'cis_ubuntu2204_rule_5_1_20', 'cis_ubuntu2204_rule_5_1_23'
# disable ssh login by password, to avoid block login when no public key was added this rule is extended
# it is 'false' by default
cis_ubuntu2204_rule_5_1_24: true
cis_ubuntu2204_rule_5_1_24_ssh_user: "{{ ansible_user }}"
cis_ubuntu2204_rule_5_1_24_ssh_pub_key: "<ADD_PUB_KEY>"
# set auditd log_file as needed to be save in other configs
cis_ubuntu2204_rule_6_3_4_0: truechange default configured values, to be CIS recommended if needed
# Ensure all AppArmor Profiles are enforcing
# NOTE: will perform Profiles as enforcing mode
cis_ubuntu2204_rule_1_3_1_4: false
# Ensure bootloader password is set
cis_ubuntu2204_rule_1_4_1: false
cis_ubuntu2204_set_boot_pass: false
cis_ubuntu2204_disable_boot_pass: true
# active journal upload to remote log collection
# do not forget set related variables 'cis_ubuntu2204_set_journal_upload_*'
cis_ubuntu2204_set_journal_upload: false
cis_ubuntu2204_set_journal_upload_url: <SET_REMOTE_URL>check services which will removed or disabled, which maybe needed, for example especial for client usage
# will disable USB storage, if USB storage is needed set to 'false'
cis_ubuntu2204_rule_1_1_1_8: true
# will remove bluetooth service, if bluetooth is needed set to 'false'
cis_ubuntu2204_rule_3_1_3: true
cis_ubuntu2204_rule_3_1_3_remove: true
# will disable auto mount, if auto mount is needed set to 'true'
cis_ubuntu2204_allow_autofs: false
# will purge gdm/gui, if gui is needed set to 'true'
# if 'true' is set, recommended configs will perform in rules 1.7.2 - 1.7.10
cis_ubuntu2204_allow_gdm_gui: false
# will purge printer service, if printer service is need set to 'true'
cis_ubuntu2204_allow_cups: false
# will disable ipv6 complete, if ipv6 is needed set to 'true'
cis_ubuntu2204_required_ipv6: false
# will install and config AIDE, if not needed set to 'false'
cis_ubuntu2204_install_aide: true
cis_ubuntu2204_config_aide: true# choose time synchronization (cis_ubuntu2204_rule_2_3_1_1)
cis_ubuntu2204_time_synchronization_service: chrony # chrony | systemd-timesyncd
cis_ubuntu2204_time_synchronization_time_server:
- uri: time.cloudflare.com
config: iburst
- uri: ntp.ubuntu.com
config: iburst
# cron allow users (cis_ubuntu2204_rule_2_4_1_8)
cis_ubuntu2204_cron_allow_users:
- root
# at allow users (cis_ubuntu2204_rule_2_4_2_1)
cis_ubuntu2204_at_allow_users:
- root
# choose firewall (cis_ubuntu2204_rule_4_*)
cis_ubuntu2204_firewall: ufw # ufw | nftables | iptables
# allows/denies for users/groups (4 possible variables can be used/activated)
# put 'null' or list of users (comma separated user list)
# default set to add ssh as group to allow use ssh (do not forget add group to user)
#cis_ubuntu2204_ssh_allow_users: root,user
#cis_ubuntu2204_ssh_allow_groups: root,ssh
#cis_ubuntu2204_ssh_deny_users: root,user
#cis_ubuntu2204_ssh_deny_groups: root,ssh
cis_ubuntu2204_ssh_permit_root_login: "no"
cis_ubuntu2204_ssh_port: 22
cis_ubuntu2204_ssh_authentication_methods: "publickey"
cis_ubuntu2204_ssh_password_authentication: "no"
# pw quality policies
cis_ubuntu2204_faillock_deny: 5
cis_ubuntu2204_faillock_unlock_time: 900
cis_ubuntu2204_faillock_minlen: 14
cis_ubuntu2204_password_complexity:
- key: "minclass"
value: "3"
- key: "dcredit"
value: "-1"
- key: "ucredit"
value: "-1"
- key: "ocredit"
value: "-1"
- key: "lcredit"
value: "-1"
# AIDE cron settings (cis_ubuntu2204_rule_6_1_2)
cis_ubuntu2204_aide_cron:
cron_user: root
cron_file: aide
aide_job: "/usr/bin/aide.wrapper --config /etc/aide/aide.conf --check"
aide_minute: 0
aide_hour: 5
aide_day: "*"
aide_month: "*"
aide_weekday: "*"
# journald log file rotation (cis_ubuntu2204_rule_6_2_1_1_3)
cis_ubuntu2204_journald_system_max_use: 4G
cis_ubuntu2204_journald_system_keep_free: 8G
cis_ubuntu2204_journald_runtime_max_use: 256M
cis_ubuntu2204_journald_runtime_keep_free: 512M
cis_ubuntu2204_journald_max_file_sec: 1month# SECTION1 | 1.2.1.1 | Ensure GPG keys are configured
cis_ubuntu2204_rule_1_2_1_1: true
# SECTION1 | 1.2.1.2 | Ensure package manager repositories are configured
cis_ubuntu2204_rule_1_2_1_2: true
# SECTION2 | 2.1.22 | Ensure only approved services are listening on a network interface
cis_ubuntu2204_rule_2_1_22: true
# SECTION7 | 7.1.12 | Ensure no files or directories without an owner and a group exist
cis_ubuntu2204_rule_7_1_12: true
# SECTION7 | 7.1.13 | Ensure SUID and SGID files are reviewed
cis_ubuntu2204_rule_7_1_13: true
# SECTION7 | 7.2.3 | Ensure all groups in /etc/passwd exist in /etc/group
cis_ubuntu2204_rule_7_2_3: true
# SECTION7 | 7.2.5 | Ensure no duplicate UIDs exist
cis_ubuntu2204_rule_7_2_5: true
# SECTION7 | 7.2.6 | Ensure no duplicate GIDs exist
cis_ubuntu2204_rule_7_2_6: true
# SECTION7 | 7.2.7 | Ensure no duplicate user names exist
cis_ubuntu2204_rule_7_2_7: true
# SECTION7 | 7.2.8 | Ensure no duplicate group names exist
cis_ubuntu2204_rule_7_2_8: trueDeveloped and testes with Ansible 2.14.4
example usage you can find also here.
- name: CIS | install on clients
become: true
remote_user: "{{ ansible_user }}"
hosts:
- clients
roles:
- role: ansible-cis-ubuntu-2204
cis_ubuntu2204_section1: true
cis_ubuntu2204_section2: true
cis_ubuntu2204_section3: true
cis_ubuntu2204_section4: true
cis_ubuntu2204_section5: true
cis_ubuntu2204_section6: true
cis_ubuntu2204_section7: true
# -------------------------
cis_ubuntu2204_rule_5_1_24: true
cis_ubuntu2204_rule_5_1_24_ssh_user: "{{ ansible_user }}"
cis_ubuntu2204_rule_5_1_24_ssh_pub_key: "<ADD_PUB_KEY>"
# -------------------------
cis_ubuntu2204_rule_1_3_1_3: true # AppArmor complain mode
cis_ubuntu2204_rule_1_3_1_4: false # AppArmor enforce mode
# -------------------------
cis_ubuntu2204_rule_1_4_1: false # bootloader password (disabled)
cis_ubuntu2204_set_boot_pass: false # bootloader password (disabled)
cis_ubuntu2204_disable_boot_pass: true # bootloader password (disabled)
# -------------------------
cis_ubuntu2204_rule_3_1_3: false # bluetooth service
cis_ubuntu2204_rule_3_1_3_remove: false # bluetooth service
# -------------------------
cis_ubuntu2204_allow_gdm_gui: true
cis_ubuntu2204_allow_autofs: true # Disable auto mount, set to true to allow it and not disable
cis_ubuntu2204_rule_1_1_1_8: false # Disable USB Storage, set to false to not disable
cis_ubuntu2204_time_synchronization_service: chrony # chrony | systemd-timesyncd
cis_ubuntu2204_time_synchronization_time_server:
- uri: time.cloudflare.com
config: iburst
- uri: ntp.ubuntu.com
config: iburst
cis_ubuntu2204_allow_cups: true
# -------------------------
cis_ubuntu2204_install_aide: "{{ cis_setup_aide | default(false) | bool }}"
cis_ubuntu2204_config_aide: "{{ cis_setup_aide | default(false) | bool }}"
cis_ubuntu2204_aide_cron:
cron_user: root
cron_file: aide
aide_job: "/usr/bin/aide.wrapper --config /etc/aide/aide.conf --check"
aide_minute: 0
aide_hour: 5
aide_day: "*"
aide_month: "*"
aide_weekday: "*"
# -------------------------
cis_ubuntu2204_journald_system_max_use: 4G
cis_ubuntu2204_journald_system_keep_free: 8G
cis_ubuntu2204_journald_runtime_max_use: 256M
cis_ubuntu2204_journald_runtime_keep_free: 512M
cis_ubuntu2204_journald_max_file_sec: 1month
# -------------------------
cis_ubuntu2204_required_ipv6: "{{ cis_ipv6_required | default(false) | bool }}"
cis_ubuntu2204_firewall: ufw
# -------------------------
cis_ubuntu2204_cron_allow_users:
- root
cis_ubuntu2204_at_allow_users:
- root
# -------------------------
cis_ubuntu2204_faillock_deny: 5
cis_ubuntu2204_faillock_unlock_time: 900
cis_ubuntu2204_faillock_minlen: 8
cis_ubuntu2204_password_complexity:
- key: "minclass"
value: "3"
- key: "dcredit"
value: "-1"
- key: "ucredit"
value: "-1"
- key: "ocredit"
value: "-1"
- key: "lcredit"
value: "-1"
# -------------------------A collection of recommendations for securing a technology or a supporting platform. Most benchmarks include at least a Level 1 and Level 2 Profile. Level 2 extends Level 1 recommendations and is not a standalone profile. The Profile Definitions section in the benchmark provides the definitions as they pertain to the recommendations included for the technology.
For Level 1 and Level 2 and the split into Server and Workstation, are defined by tags in the tasks by:
- server_l1
- server_l2
- workstation_l1
- workstation_l2
For more specific description see the CIS pdf file on page 18.
| Key | Count |
|---|---|
| 🟢 Implemented | 268 |
| 🟡 Partly Implemented or print info for manual check | 13 |
| 🔴 Not Implemented | 20 |
| Total | 301 |
| Coverage (Implemented/Partly vs Total) | 93.35 |
| ID | CIS Benchmark Recommendation Set | Yes | Y/N | No |
|---|---|---|---|---|
| 1 | Initial Setup | 🟡 | ||
| 1.1 | Filesystem | 🟡 | ||
| 1.1.1 | Configure Filesystem Kernel Modules | 🟢 | ||
| 1.1.1.1 | Ensure cramfs kernel module is not available (Automated) | 🟢 | ||
| 1.1.1.2 | Ensure freevxfs kernel module is not available (Automated) | 🟢 | ||
| 1.1.1.3 | Ensure hfs kernel module is not available (Automated) | 🟢 | ||
| 1.1.1.4 | Ensure hfsplus kernel module is not available (Automated) | 🟢 | ||
| 1.1.1.5 | Ensure jffs2 kernel module is not available (Automated) | 🟢 | ||
| 1.1.1.6 | Ensure squashfs kernel module is not available (Automated) | 🟢 | ||
| 1.1.1.7 | Ensure udf kernel module is not available (Automated) | 🟢 | ||
| 1.1.1.8 | Ensure usb-storage kernel module is not available (Automated) | 🟢 | ||
| 1.1.2 | Configure Filesystem Partitions | 🟢 | ||
| 1.1.2.1 | Configure /tmp | 🟢 | ||
| 1.1.2.1.1 | Ensure /tmp is a separate partition (Automated) | 🟢 | ||
| 1.1.2.1.2 | Ensure nodev option set on /tmp partition (Automated) | 🟢 | ||
| 1.1.2.1.3 | Ensure nosuid option set on /tmp partition (Automated) | 🟢 | ||
| 1.1.2.1.4 | Ensure noexec option set on /tmp partition (Automated) | 🟢 | ||
| 1.1.2.2 | Configure /dev/shm | 🟢 | ||
| 1.1.2.2.1 | Ensure /dev/shm is a separate partition (Automated) | 🟢 | ||
| 1.1.2.2.2 | Ensure nodev option set on /dev/shm partition (Automated) | 🟢 | ||
| 1.1.2.2.3 | Ensure nosuid option set on /dev/shm partition (Automated) | 🟢 | ||
| 1.1.2.2.4 | Ensure noexec option set on /dev/shm partition (Automated) | 🟢 | ||
| 1.1.2.3 | Configure /home | 🔴 | ||
| 1.1.2.3.1 | Ensure separate partition exists for /home (Automated) | 🔴 | ||
| 1.1.2.3.2 | Ensure nodev option set on /home partition (Automated) | 🔴 | ||
| 1.1.2.3.3 | Ensure nosuid option set on /home partition (Automated) | 🔴 | ||
| 1.1.2.4 | Configure /var | 🔴 | ||
| 1.1.2.4.1 | Ensure separate partition exists for /var (Automated) | 🔴 | ||
| 1.1.2.4.2 | Ensure nodev option set on /var partition (Automated) | 🔴 | ||
| 1.1.2.4.3 | Ensure nosuid option set on /var partition (Automated) | 🔴 | ||
| 1.1.2.5 | Configure /var/tmp | 🔴 | ||
| 1.1.2.5.1 | Ensure separate partition exists for /var/tmp (Automated) | 🔴 | ||
| 1.1.2.5.2 | Ensure nodev option set on /var/tmp partition (Automated) | 🔴 | ||
| 1.1.2.5.3 | Ensure nosuid option set on /var/tmp partition (Automated) | 🔴 | ||
| 1.1.2.5.4 | Ensure noexec option set on /var/tmp partition (Automated) | 🔴 | ||
| 1.1.2.6 | Configure /var/log | 🔴 | ||
| 1.1.2.6.1 | Ensure separate partition exists for /var/log (Automated) | 🔴 | ||
| 1.1.2.6.2 | Ensure nodev option set on /var/log partition (Automated) | 🔴 | ||
| 1.1.2.6.3 | Ensure nosuid option set on /var/log partition (Automated) | 🔴 | ||
| 1.1.2.6.4 | Ensure noexec option set on /var/log partition (Automated) | 🔴 | ||
| 1.1.2.7 | Configure /var/log/audit | 🔴 | ||
| 1.1.2.7.1 | Ensure separate partition exists for /var/log/audit (Automated) | 🔴 | ||
| 1.1.2.7.2 | Ensure nodev option set on /var/log/audit partition (Automated) | 🔴 | ||
| 1.1.2.7.3 | Ensure nosuid option set on /var/log/audit partition (Automated) | 🔴 | ||
| 1.1.2.7.4 | Ensure noexec option set on /var/log/audit partition (Automated) | 🔴 | ||
| 1.2 | Package Management | 🟡 | ||
| 1.2.1 | Configure Package Repositories | 🟡 | ||
| 1.2.1.1 | Ensure GPG keys are configured (Manual) | 🟡 | ||
| 1.2.1.2 | Ensure package manager repositories are configured (Manual) | 🟡 | ||
| 1.2.2 | Configure Package Updates | 🟢 | ||
| 1.2.2.1 | Ensure updates, patches, and additional security software are installed (Manual) | 🟢 | ||
| 1.3 | Mandatory Access Control | 🟢 | ||
| 1.3.1 | Configure AppArmor | 🟢 | ||
| 1.3.1.1 | Ensure AppArmor is installed (Automated) | 🟢 | ||
| 1.3.1.2 | Ensure AppArmor is enabled in the bootloader configuration (Automated) | 🟢 | ||
| 1.3.1.3 | Ensure all AppArmor Profiles are in enforce or complain mode (Automated) | 🟢 | ||
| 1.3.1.4 | Ensure all AppArmor Profiles are enforcing (Automated) | 🟢 | ||
| 1.4 | Configure Bootloader | 🟢 | ||
| 1.4.1 | Ensure bootloader password is set (Automated) | 🟢 | ||
| 1.4.2 | Ensure access to bootloader config is configured (Automated) | 🟢 | ||
| 1.5 | Configure Additional Process Hardening | 🟢 | ||
| 1.5.1 | Ensure address space layout randomization is enabled (Automated) | 🟢 | ||
| 1.5.2 | Ensure ptrace_scope is restricted (Automated) | 🟢 | ||
| 1.5.3 | Ensure core dumps are restricted (Automated) | 🟢 | ||
| 1.5.4 | Ensure prelink is not installed (Automated) | 🟢 | ||
| 1.5.5 | Ensure Automatic Error Reporting is not enabled (Automated) | 🟢 | ||
| 1.6 | Configure Command Line Warning Banners | 🟢 | ||
| 1.6.1 | Ensure message of the day is configured properly (Automated) | 🟢 | ||
| 1.6.2 | Ensure local login warning banner is configured properly (Automated) | 🟢 | ||
| 1.6.3 | Ensure remote login warning banner is configured properly (Automated) | 🟢 | ||
| 1.6.4 | Ensure access to /etc/motd is configured (Automated) | 🟢 | ||
| 1.6.5 | Ensure access to /etc/issue is configured (Automated) | 🟢 | ||
| 1.6.6 | Ensure access to /etc/issue.net is configured (Automated) | 🟢 | ||
| 1.7 | Configure GNOME Display Manager | 🟢 | ||
| 1.7.1 | Ensure GDM is removed (Automated) | 🟢 | ||
| 1.7.2 | Ensure GDM login banner is configured (Automated) | 🟢 | ||
| 1.7.3 | Ensure GDM disable-user-list option is enabled (Automated) | 🟢 | ||
| 1.7.4 | Ensure GDM screen locks when the user is idle (Automated) | 🟢 | ||
| 1.7.5 | Ensure GDM screen locks cannot be overridden (Automated) | 🟢 | ||
| 1.7.6 | Ensure GDM automatic mounting of removable media is disabled (Automated) | 🟢 | ||
| 1.7.7 | Ensure GDM disabling automatic mounting of removable media is not overridden (Automated) | 🟢 | ||
| 1.7.8 | Ensure GDM autorun-never is enabled (Automated) | 🟢 | ||
| 1.7.9 | Ensure GDM autorun-never is not overridden (Automated) | 🟢 | ||
| 1.7.10 | Ensure XDMCP is not enabled (Automated) | 🟢 | ||
| 2 | Services | 🟢 | ||
| 2.1 | Configure Server Services | 🟢 | ||
| 2.1.1 | Ensure autofs services are not in use (Automated) | 🟢 | ||
| 2.1.2 | Ensure avahi daemon services are not in use (Automated) | 🟢 | ||
| 2.1.3 | Ensure dhcp server services are not in use (Automated) | 🟢 | ||
| 2.1.4 | Ensure dns server services are not in use (Automated) | 🟢 | ||
| 2.1.5 | Ensure dnsmasq services are not in use (Automated) | 🟢 | ||
| 2.1.6 | Ensure ftp server services are not in use (Automated) | 🟢 | ||
| 2.1.7 | Ensure ldap server services are not in use (Automated) | 🟢 | ||
| 2.1.8 | Ensure message access server services are not in use (Automated) | 🟢 | ||
| 2.1.9 | Ensure network file system services are not in use (Automated) | 🟢 | ||
| 2.1.10 | Ensure nis server services are not in use (Automated) | 🟢 | ||
| 2.1.11 | Ensure print server services are not in use (Automated) | 🟢 | ||
| 2.1.12 | Ensure rpcbind services are not in use (Automated) | 🟢 | ||
| 2.1.13 | Ensure rsync services are not in use (Automated) | 🟢 | ||
| 2.1.14 | Ensure samba file server services are not in use (Automated) | 🟢 | ||
| 2.1.15 | Ensure snmp services are not in use (Automated) | 🟢 | ||
| 2.1.16 | Ensure tftp server services are not in use (Automated) | 🟢 | ||
| 2.1.17 | Ensure web proxy server services are not in use (Automated) | 🟢 | ||
| 2.1.18 | Ensure web server services are not in use (Automated) | 🟢 | ||
| 2.1.19 | Ensure xinetd services are not in use (Automated) | 🟢 | ||
| 2.1.20 | Ensure X window server services are not in use (Automated) | 🟢 | ||
| 2.1.21 | Ensure mail transfer agent is configured for local-only mode (Automated) | 🟢 | ||
| 2.1.22 | Ensure only approved services are listening on a network interface (Manual) | 🟢 | ||
| 2.2 | Configure Client Services | 🟢 | ||
| 2.2.1 | Ensure nis Client is not installed (Automated) | 🟢 | ||
| 2.2.2 | Ensure rsh client is not installed (Automated) | 🟢 | ||
| 2.2.3 | Ensure talk client is not installed (Automated) | 🟢 | ||
| 2.2.4 | Ensure telnet client is not installed (Automated) | 🟢 | ||
| 2.2.5 | Ensure ldap client is not installed (Automated) | 🟢 | ||
| 2.2.6 | Ensure ftp client is not installed (Automated) | 🟢 | ||
| 2.3 | Configure Time Synchronization | 🟢 | ||
| 2.3.1 | Ensure time synchronization is in use | 🟢 | ||
| 2.3.1.1 | Ensure a single time synchronization daemon is in use (Automated) | 🟢 | ||
| 2.3.2 | Configure systemd-timesyncd | 🟢 | ||
| 2.3.2.1 | Ensure systemd-timesyncd configured with authorized timeserver (Automated) | 🟢 | ||
| 2.3.2.2 | Ensure systemd-timesyncd is enabled and running (Automated) | 🟢 | ||
| 2.3.3 | Configure chrony | 🟢 | ||
| 2.3.3.1 | Ensure chrony is configured with authorized timeserver (Manual) | 🟢 | ||
| 2.3.3.2 | Ensure chrony is running as user _chrony (Automated) | 🟢 | ||
| 2.3.3.3 | Ensure chrony is enabled and running (Automated) | 🟢 | ||
| 2.4 | Job Schedulers | 🟢 | ||
| 2.4.1 | Configure cron | 🟢 | ||
| 2.4.1.1 | Ensure cron daemon is enabled and active (Automated) | 🟢 | ||
| 2.4.1.2 | Ensure permissions on /etc/crontab are configured (Automated) | 🟢 | ||
| 2.4.1.3 | Ensure permissions on /etc/cron.hourly are configured (Automated) | 🟢 | ||
| 2.4.1.4 | Ensure permissions on /etc/cron.daily are configured (Automated) | 🟢 | ||
| 2.4.1.5 | Ensure permissions on /etc/cron.weekly are configured (Automated) | 🟢 | ||
| 2.4.1.6 | Ensure permissions on /etc/cron.monthly are configured (Automated) | 🟢 | ||
| 2.4.1.7 | Ensure permissions on /etc/cron.d are configured (Automated) | 🟢 | ||
| 2.4.1.8 | Ensure crontab is restricted to authorized users (Automated) | 🟢 | ||
| 2.4.2 | Configure at | 🟢 | ||
| 2.4.2.1 | Ensure at is restricted to authorized users (Automated) | 🟢 | ||
| 3 | Network | 🟡 | ||
| 3.1 | Configure Network Devices | 🟡 | ||
| 3.1.1 | Ensure IPv6 status is identified (Manual) | 🟢 | ||
| 3.1.2 | Ensure wireless interfaces are disabled (Automated) | 🔴 | ||
| 3.1.3 | Ensure bluetooth services are not in use (Automated) | 🟢 | ||
| 3.2 | Configure Network Kernel Modules | 🟢 | ||
| 3.2.1 | Ensure dccp kernel module is not available (Automated) | 🟢 | ||
| 3.2.2 | Ensure tipc kernel module is not available (Automated) | 🟢 | ||
| 3.2.3 | Ensure rds kernel module is not available (Automated) | 🟢 | ||
| 3.2.4 | Ensure sctp kernel module is not available (Automated) | 🟢 | ||
| 3.3 | Configure Network Kernel Parameters | 🟢 | ||
| 3.3.1 | Ensure ip forwarding is disabled (Automated) | 🟢 | ||
| 3.3.2 | Ensure packet redirect sending is disabled (Automated) | 🟢 | ||
| 3.3.3 | Ensure bogus icmp responses are ignored (Automated) | 🟢 | ||
| 3.3.4 | Ensure broadcast ICMP requests are ignored (Automated) | 🟢 | ||
| 3.3.5 | Ensure ICMP redirects are not accepted (Automated) | 🟢 | ||
| 3.3.6 | Ensure secure ICMP redirects are not accepted (Automated) | 🟢 | ||
| 3.3.7 | Ensure Reverse Path Filtering is enabled (Automated) | 🟢 | ||
| 3.3.8 | Ensure source routed packets are not accepted (Automated) | 🟢 | ||
| 3.3.9 | Ensure suspicious packets are logged (Automated) | 🟢 | ||
| 3.3.10 | Ensure TCP SYN Cookies is enabled (Automated) | 🟢 | ||
| 3.3.11 | Ensure IPv6 router advertisements are not accepted (Automated) | 🟢 | ||
| 4 | Host Based Firewall | 🟢 | ||
| 4.1 | Configure UncomplicatedFirewall | 🟢 | ||
| 4.1.1 | Ensure ufw is installed (Automated) | 🟢 | ||
| 4.1.2 | Ensure iptables-persistent is not installed with ufw (Automated) | 🟢 | ||
| 4.1.3 | Ensure ufw service is enabled (Automated) | 🟢 | ||
| 4.1.4 | Ensure ufw loopback traffic is configured (Automated) | 🟢 | ||
| 4.1.5 | Ensure ufw outbound connections are configured (Manual) | 🟢 | ||
| 4.1.6 | Ensure ufw firewall rules exist for all open ports (Automated) | 🟢 | ||
| 4.1.7 | Ensure ufw default deny firewall policy (Automated) | 🟢 | ||
| 4.2 | Configure nftables | 🟢 | ||
| 4.2.1 | Ensure nftables is installed (Automated) | 🟢 | ||
| 4.2.2 | Ensure ufw is uninstalled or disabled with nftables (Automated) | 🟢 | ||
| 4.2.3 | Ensure iptables are flushed with nftables (Manual) | 🟢 | ||
| 4.2.4 | Ensure a nftables table exists (Automated) | 🟢 | ||
| 4.2.5 | Ensure nftables base chains exist (Automated) | 🟢 | ||
| 4.2.6 | Ensure nftables loopback traffic is configured (Automated) | 🟢 | ||
| 4.2.7 | Ensure nftables outbound and established connections are configured (Manual) | 🟢 | ||
| 4.2.8 | Ensure nftables default deny firewall policy (Automated) | 🟢 | ||
| 4.2.9 | Ensure nftables service is enabled (Automated) | 🟢 | ||
| 4.2.10 | Ensure nftables rules are permanent (Automated) | 🟢 | ||
| 4.3 | Configure iptables | 🟢 | ||
| 4.3.1 | Configure iptables software | 🟢 | ||
| 4.3.1.1 | Ensure iptables packages are installed (Automated) | 🟢 | ||
| 4.3.1.2 | Ensure nftables is not installed with iptables (Automated) | 🟢 | ||
| 4.3.1.3 | Ensure ufw is uninstalled or disabled with iptables (Automated) | 🟢 | ||
| 4.3.2 | Configure IPv4 iptables | 🟢 | ||
| 4.3.2.1 | Ensure iptables default deny firewall policy (Automated) | 🟢 | ||
| 4.3.2.2 | Ensure iptables loopback traffic is configured (Automated) | 🟢 | ||
| 4.3.2.3 | Ensure iptables outbound and established connections are configured (Manual) | 🟢 | ||
| 4.3.2.4 | Ensure iptables firewall rules exist for all open ports (Automated) | 🟢 | ||
| 4.3.3 | Configure IPv6 ip6tables | 🟢 | ||
| 4.3.3.1 | Ensure ip6tables default deny firewall policy (Automated) | 🟢 | ||
| 4.3.3.2 | Ensure ip6tables loopback traffic is configured (Automated) | 🟢 | ||
| 4.3.3.3 | Ensure ip6tables outbound and established connections are configured (Manual) | 🟢 | ||
| 4.3.3.4 | Ensure ip6tables firewall rules exist for all open ports (Automated) | 🟢 | ||
| 5 | Access Control | 🟡 | ||
| 5.1 | Configure SSH Server | 🟢 | ||
| 5.1.1 | Ensure permissions on /etc/ssh/sshd_config are configured (Automated) | 🟢 | ||
| 5.1.2 | Ensure permissions on SSH private host key files are configured (Automated) | 🟢 | ||
| 5.1.3 | Ensure permissions on SSH public host key files are configured (Automated) | 🟢 | ||
| 5.1.4 | Ensure sshd access is configured (Automated) | 🟢 | ||
| 5.1.5 | Ensure sshd Banner is configured (Automated) | 🟢 | ||
| 5.1.6 | Ensure sshd Ciphers are configured (Automated) | 🟢 | ||
| 5.1.7 | Ensure sshd ClientAliveInterval and ClientAliveCountMax are configured (Automated) | 🟢 | ||
| 5.1.8 | Ensure sshd DisableForwarding is enabled (Automated) | 🟢 | ||
| 5.1.9 | Ensure sshd GSSAPIAuthentication is disabled (Automated) | 🟢 | ||
| 5.1.10 | Ensure sshd HostbasedAuthentication is disabled (Automated) | 🟢 | ||
| 5.1.11 | Ensure sshd IgnoreRhosts is enabled (Automated) | 🟢 | ||
| 5.1.12 | Ensure sshd KexAlgorithms is configured (Automated) | 🟢 | ||
| 5.1.13 | Ensure sshd LoginGraceTime is configured (Automated) | 🟢 | ||
| 5.1.14 | Ensure sshd LogLevel is configured (Automated) | 🟢 | ||
| 5.1.15 | Ensure sshd MACs are configured (Automated) | 🟢 | ||
| 5.1.16 | Ensure sshd MaxAuthTries is configured (Automated) | 🟢 | ||
| 5.1.17 | Ensure sshd MaxSessions is configured (Automated) | 🟢 | ||
| 5.1.18 | Ensure sshd MaxStartups is configured (Automated) | 🟢 | ||
| 5.1.19 | Ensure sshd PermitEmptyPasswords is disabled (Automated) | 🟢 | ||
| 5.1.20 | Ensure sshd PermitRootLogin is disabled (Automated) | 🟢 | ||
| 5.1.21 | Ensure sshd PermitUserEnvironment is disabled (Automated) | 🟢 | ||
| 5.1.22 | Ensure sshd UsePAM is enabled (Automated) | 🟢 | ||
| 5.2 | Configure privilege escalation | 🟢 | ||
| 5.2.1 | Ensure sudo is installed (Automated) | 🟢 | ||
| 5.2.2 | Ensure sudo commands use pty (Automated) | 🟢 | ||
| 5.2.3 | Ensure sudo log file exists (Automated) | 🟢 | ||
| 5.2.4 | Ensure users must provide password for privilege escalation (Automated) | 🟢 | ||
| 5.2.5 | Ensure re-authentication for privilege escalation is not disabled globally (Automated) | 🟢 | ||
| 5.2.6 | Ensure sudo authentication timeout is configured correctly (Automated) | 🟢 | ||
| 5.2.7 | Ensure access to the su command is restricted (Automated) | 🟢 | ||
| 5.3 | Pluggable Authentication Modules | 🟢 | ||
| 5.3.1 | Configure PAM software packages | 🟢 | ||
| 5.3.1.1 | Ensure latest version of pam is installed (Automated) | 🟢 | ||
| 5.3.1.2 | Ensure libpam-modules is installed (Automated) | 🟢 | ||
| 5.3.1.3 | Ensure libpam-pwquality is installed (Automated) | 🟢 | ||
| 5.3.2 | Configure pam-auth-update profiles | 🟢 | ||
| 5.3.2.1 | Ensure pam_unix module is enabled (Automated) | 🟢 | ||
| 5.3.2.2 | Ensure pam_faillock module is enabled (Automated) | 🟢 | ||
| 5.3.2.3 | Ensure pam_pwquality module is enabled (Automated) | 🟢 | ||
| 5.3.2.4 | Ensure pam_pwhistory module is enabled (Automated) | 🟢 | ||
| 5.3.3 | Configure PAM Arguments | 🟢 | ||
| 5.3.3.1 | Configure pam_faillock module | 🟢 | ||
| 5.3.3.1.1 | Ensure password failed attempts lockout is configured (Automated) | 🟢 | ||
| 5.3.3.1.2 | Ensure password unlock time is configured (Automated) | 🟢 | ||
| 5.3.3.1.3 | Ensure password failed attempts lockout includes root account (Automated) | 🟢 | ||
| 5.3.3.2 | Configure pam_pwquality module | 🟢 | ||
| 5.3.3.2.1 | Ensure password number of changed characters is configured (Automated) | 🟢 | ||
| 5.3.3.2.2 | Ensure minimum password length is configured (Automated) | 🟢 | ||
| 5.3.3.2.3 | Ensure password complexity is configured (Manual) | 🟢 | ||
| 5.3.3.2.4 | Ensure password same consecutive characters is configured (Automated) | 🟢 | ||
| 5.3.3.2.5 | Ensure password maximum sequential characters is configured (Automated) | 🟢 | ||
| 5.3.3.2.6 | Ensure password dictionary check is enabled (Automated) | 🟢 | ||
| 5.3.3.2.7 | Ensure password quality checking is enforced (Automated) | 🟢 | ||
| 5.3.3.2.8 | Ensure password quality is enforced for the root user (Automated) | 🟢 | ||
| 5.3.3.3 | Configure pam_pwhistory module | 🟢 | ||
| 5.3.3.3.1 | Ensure password history remember is configured (Automated) | 🟢 | ||
| 5.3.3.3.2 | Ensure password history is enforced for the root user (Automated) | 🟢 | ||
| 5.3.3.3.3 | Ensure pam_pwhistory includes use_authtok (Automated) | 🟢 | ||
| 5.3.3.4 | Configure pam_unix module | 🟢 | ||
| 5.3.3.4.1 | Ensure pam_unix does not include nullok (Automated) | 🟢 | ||
| 5.3.3.4.2 | Ensure pam_unix does not include remember (Automated) | 🟢 | ||
| 5.3.3.4.3 | Ensure pam_unix includes a strong password hashing algorithm (Automated) | 🟢 | ||
| 5.3.3.4.4 | Ensure pam_unix includes use_authtok (Automated) | 🟢 | ||
| 5.4 | User Accounts and Environment | 🟡 | ||
| 5.4.1 | Configure shadow password suite parameters | 🟢 | ||
| 5.4.1.1 | Ensure password expiration is configured (Automated) | 🟢 | ||
| 5.4.1.2 | Ensure minimum password age is configured (Manual) | 🟢 | ||
| 5.4.1.3 | Ensure password expiration warning days is configured (Automated) | 🟢 | ||
| 5.4.1.4 | Ensure strong password hashing algorithm is configured (Automated) | 🟢 | ||
| 5.4.1.5 | Ensure inactive password lock is configured (Automated) | 🟡 | ||
| 5.4.1.6 | Ensure all users last password change date is in the past (Automated) | 🟡 | ||
| 5.4.2 | Configure root and system accounts and environment | 🟡 | ||
| 5.4.2.1 | Ensure root is the only UID 0 account (Automated) | 🟢 | ||
| 5.4.2.2 | Ensure root is the only GID 0 account (Automated) | 🟢 | ||
| 5.4.2.3 | Ensure group root is the only GID 0 group (Automated) | 🟢 | ||
| 5.4.2.4 | Ensure root password is set (Automated) | 🔴 | ||
| 5.4.2.5 | Ensure root path integrity (Automated) | 🟡 | ||
| 5.4.2.6 | Ensure root user umask is configured (Automated) | 🟢 | ||
| 5.4.2.7 | Ensure system accounts do not have a valid login shell (Automated) | 🟡 | ||
| 5.4.2.8 | Ensure accounts without a valid login shell are locked (Automated) | 🟢 | ||
| 5.4.3 | Configure user default environment | 🟢 | ||
| 5.4.3.1 | Ensure nologin is not listed in /etc/shells (Automated) | 🟢 | ||
| 5.4.3.2 | Ensure default user shell timeout is configured (Automated) | 🟢 | ||
| 5.4.3.3 | Ensure default user umask is configured (Automated) | 🟢 | ||
| 6 | Logging and Auditing | 🟢 | ||
| 6.1 | Configure Filesystem Integrity Checking | 🟢 | ||
| 6.1.1 | Ensure AIDE is installed (Automated) | 🟢 | ||
| 6.1.2 | Ensure filesystem integrity is regularly checked (Automated) | 🟢 | ||
| 6.1.3 | Ensure cryptographic mechanisms are used to protect the integrity of audit tools (Automated) | 🟢 | ||
| 6.2 | System Logging | 🟢 | ||
| 6.2.1 | Configure journald | 🟢 | ||
| 6.2.1.1 | Configure systemd-journald service | 🟢 | ||
| 6.2.1.1.1 | Ensure journald service is enabled and active (Automated) | 🟢 | ||
| 6.2.1.1.2 | Ensure journald log file access is configured (Automated) | 🟢 | ||
| 6.2.1.1.3 | Ensure journald log file rotation is configured (Automated) | 🟢 | ||
| 6.2.1.1.4 | Ensure journald ForwardToSyslog is disabled (Automated) | 🟢 | ||
| 6.2.1.1.5 | Ensure journald Storage is configured (Automated) | 🟢 | ||
| 6.2.1.1.6 | Ensure journald Compress is configured (Automated) | 🟢 | ||
| 6.2.1.2 | Configure systemd-journal-remote | 🟢 | ||
| 6.2.1.2.1 | Ensure systemd-journal-remote is installed (Automated) | 🟢 | ||
| 6.2.1.2.2 | Ensure systemd-journal-remote authentication is configured (Manual) | 🟢 | ||
| 6.2.1.2.3 | Ensure systemd-journal-upload is enabled and active (Automated) | 🟢 | ||
| 6.2.1.2.4 | Ensure systemd-journal-remote service is not in use (Automated) | 🟢 | ||
| 6.2.2 | Configure Logfiles | 🟢 | ||
| 6.2.2.1 | Ensure access to all logfiles has been configured (Automated) | 🟢 | ||
| 6.3 | System Auditing | 🟢 | ||
| 6.3.1 | Configure auditd Service | 🟢 | ||
| 6.3.1.1 | Ensure auditd packages are installed (Automated) | 🟢 | ||
| 6.3.1.2 | Ensure auditd service is enabled and active (Automated) | 🟢 | ||
| 6.3.1.3 | Ensure auditing for processes that start prior to auditd is enabled (Automated) | 🟢 | ||
| 6.3.1.4 | Ensure audit_backlog_limit is sufficient (Automated) | 🟢 | ||
| 6.3.2 | Configure Data Retention | 🟢 | ||
| 6.3.2.1 | Ensure audit log storage size is configured (Automated) | 🟢 | ||
| 6.3.2.2 | Ensure audit logs are not automatically deleted (Automated) | 🟢 | ||
| 6.3.2.3 | Ensure system is disabled when audit logs are full (Automated) | 🟢 | ||
| 6.3.2.4 | Ensure system warns when audit logs are low on space (Automated) | 🟢 | ||
| 6.3.3 | Configure auditd Rules | 🟢 | ||
| 6.3.3.1 | Ensure changes to system administration scope (sudoers) is collected (Automated) | 🟢 | ||
| 6.3.3.2 | Ensure actions as another user are always logged (Automated) | 🟢 | ||
| 6.3.3.3 | Ensure events that modify the sudo log file are collected (Automated) | 🟢 | ||
| 6.3.3.4 | Ensure events that modify date and time information are collected (Automated) | 🟢 | ||
| 6.3.3.5 | Ensure events that modify the system's network environment are collected (Automated) | 🟢 | ||
| 6.3.3.6 | Ensure use of privileged commands are collected (Automated) | 🟢 | ||
| 6.3.3.7 | Ensure unsuccessful file access attempts are collected (Automated) | 🟢 | ||
| 6.3.3.8 | Ensure events that modify user/group information are collected (Automated) | 🟢 | ||
| 6.3.3.9 | Ensure discretionary access control permission modification events are collected (Automated) | 🟢 | ||
| 6.3.3.10 | Ensure successful file system mounts are collected (Automated) | 🟢 | ||
| 6.3.3.11 | Ensure session initiation information is collected (Automated) | 🟢 | ||
| 6.3.3.12 | Ensure login and logout events are collected (Automated) | 🟢 | ||
| 6.3.3.13 | Ensure file deletion events by users are collected (Automated) | 🟢 | ||
| 6.3.3.14 | Ensure events that modify the system's Mandatory Access Controls are collected (Automated) | 🟢 | ||
| 6.3.3.15 | Ensure successful and unsuccessful attempts to use the chcon command are recorded (Automated) | 🟢 | ||
| 6.3.3.16 | Ensure successful and unsuccessful attempts to use the setfacl command are recorded (Automated) | 🟢 | ||
| 6.3.3.17 | Ensure successful and unsuccessful attempts to use the chacl command are recorded (Automated) | 🟢 | ||
| 6.3.3.18 | Ensure successful and unsuccessful attempts to use the usermod command are recorded (Automated) | 🟢 | ||
| 6.3.3.19 | Ensure kernel module loading unloading and modification is collected (Automated) | 🟢 | ||
| 6.3.3.20 | Ensure the audit configuration is immutable (Automated) | 🟢 | ||
| 6.3.3.21 | Ensure the running and on disk configuration is the same (Manual) | 🟢 | ||
| 6.3.4 | Configure auditd File Access | 🟢 | ||
| 6.3.4.1 | Ensure audit log files mode is configured (Automated) | 🟢 | ||
| 6.3.4.2 | Ensure audit log files owner is configured (Automated) | 🟢 | ||
| 6.3.4.3 | Ensure audit log files group owner is configured (Automated) | 🟢 | ||
| 6.3.4.4 | Ensure the audit log file directory mode is configured (Automated) | 🟢 | ||
| 6.3.4.5 | Ensure audit configuration files mode is configured (Automated) | 🟢 | ||
| 6.3.4.6 | Ensure audit configuration files owner is configured (Automated) | 🟢 | ||
| 6.3.4.7 | Ensure audit configuration files group owner is configured (Automated) | 🟢 | ||
| 6.3.4.8 | Ensure audit tools mode is configured (Automated) | 🟢 | ||
| 6.3.4.9 | Ensure audit tools owner is configured (Automated) | 🟢 | ||
| 6.3.4.10 | Ensure audit tools group owner is configured (Automated) | 🟢 | ||
| 7 | System Maintenance | 🟡 | ||
| 7.1 | System File Permissions | 🟡 | ||
| 7.1.1 | Ensure permissions on /etc/passwd are configured (Automated) | 🟢 | ||
| 7.1.2 | Ensure permissions on /etc/passwd- are configured (Automated) | 🟢 | ||
| 7.1.3 | Ensure permissions on /etc/group are configured (Automated) | 🟢 | ||
| 7.1.4 | Ensure permissions on /etc/group- are configured (Automated) | 🟢 | ||
| 7.1.5 | Ensure permissions on /etc/shadow are configured (Automated) | 🟢 | ||
| 7.1.6 | Ensure permissions on /etc/shadow- are configured (Automated) | 🟢 | ||
| 7.1.7 | Ensure permissions on /etc/gshadow are configured (Automated) | 🟢 | ||
| 7.1.8 | Ensure permissions on /etc/gshadow- are configured (Automated) | 🟢 | ||
| 7.1.9 | Ensure permissions on /etc/shells are configured (Automated) | 🟢 | ||
| 7.1.10 | Ensure permissions on /etc/security/opasswd are configured (Automated) | 🟢 | ||
| 7.1.11 | Ensure world writable files and directories are secured (Automated) | 🟢 | ||
| 7.1.12 | Ensure no files or directories without an owner and a group exist (Automated) | 🟡 | ||
| 7.1.13 | Ensure SUID and SGID files are reviewed (Manual) | 🟡 | ||
| 7.2 | Local User and Group Settings | 🟡 | ||
| 7.2.1 | Ensure accounts in /etc/passwd use shadowed passwords (Automated) | 🟢 | ||
| 7.2.2 | Ensure /etc/shadow password fields are not empty (Automated) | 🟢 | ||
| 7.2.3 | Ensure all groups in /etc/passwd exist in /etc/group (Automated) | 🟡 | ||
| 7.2.4 | Ensure shadow group is empty (Automated) | 🟢 | ||
| 7.2.5 | Ensure no duplicate UIDs exist (Automated) | 🟡 | ||
| 7.2.6 | Ensure no duplicate GIDs exist (Automated) | 🟡 | ||
| 7.2.7 | Ensure no duplicate user names exist (Automated) | 🟡 | ||
| 7.2.8 | Ensure no duplicate group names exist (Automated) | 🟡 | ||
| 7.2.9 | Ensure local interactive user home directories are configured (Automated) | 🟢 | ||
| 7.2.10 | Ensure local interactive user dot files access is configured (Automated) | 🟢 |
MIT