--- # defaults file for rhel9-cis # WARNING: # These values may be overriden by other vars-setting options(e.g. like the below 'container_vars_file'), as explained here: # https://docs.ansible.com/ansible/latest/playbook_guide/playbooks_variables.html#variable-precedence-where-should-i-put-a-variable ## Usage on containerized images # The role discovers dynamically (in tasks/main.yml) whether it # is executed on a container image and sets the variable # system_is_container the true. Otherwise, the default value # 'false' is left unchanged. system_is_container: false # The filename of the existing yml file in role's 'vars/' sub-directory # to be used for managing the role-behavior when a container was detected: # (de)activating rules or for other tasks(e.g. disabling Selinux or a specific # firewall-type). container_vars_file: is_container.yml # rhel9cis is left off the front of this var for consistency in testing pipeline # system_is_ec2 toggle will disable tasks that fail on Amazon EC2 instances. Set true to skip and false to run tasks system_is_ec2: false # Run the OS validation check # Supported OSs will not need for this to be changed - see README e.g. CentOS os_check: true ## Switching on/off specific baseline sections # These variables govern whether the tasks of a particular section are to be executed when running the role. # E.g: If you want to execute the tasks of Section 1 you should set the "_section1" variable to true. # If you do not want the tasks from that section to get executed you simply set the variable to "false". rhel9cis_section1: true rhel9cis_section2: true rhel9cis_section3: true rhel9cis_section4: true rhel9cis_section5: true rhel9cis_section6: true # This is used for audit purposes to run only specifc level use the tags # e.g. # - level1-server # - level2-workstation rhel9cis_level_1: true rhel9cis_level_2: true ## Section 1.6 - Mandatory Access Control # This variable governs whether SELinux is disabled or not. If SELinux is NOT DISABLED by setting # 'rhel9cis_selinux_disable' to 'true', the 1.6 subsection will be executed. rhel9cis_selinux_disable: false # This variable is used in a preliminary task, handling grub2 paths either in case of # UEFI boot('/etc/grub2-efi.cfg') or in case of BIOS legacy-boot('/etc/grub2.cfg'). rhel9cis_legacy_boot: false ## Python Binary ## This is used for python3 Installations where python2 OS modules are used in ansible python2_bin: /bin/python2.7 ## Benchmark name used by audting control role # The audit variable found at the base ## metadata for Audit benchmark benchmark_version: 'v1.0.0' benchmark: RHEL9-CIS # Whether to skip the system reboot before audit # System will reboot if false, can give better audit results skip_reboot: true # default value will change to true but wont reboot if not enabled but will error change_requires_reboot: false ########################################### ### Goss is required on the remote host ### ### vars/auditd.yml for other settings ### # Allow audit to setup the requirements including installing git (if option chosen and downloading and adding goss binary to system) setup_audit: false # enable audits to run - this runs the audit and get the latest content run_audit: false # Run heavy tests - some tests can have more impact on a system enabling these can have greater impact on a system audit_run_heavy_tests: true ## Only run Audit do not remediate audit_only: false ### As part of audit_only ### # This will enable files to be copied back to control node in audit_only mode fetch_audit_files: false # Path to copy the files to will create dir structure in audit_only mode audit_capture_files_dir: /some/location to copy to on control node ############################# # How to retrieve audit binary # Options are copy or download - detailed settings at the bottom of this file # you will need to access to either github or the file already dowmloaded get_audit_binary_method: download ## if get_audit_binary_method - copy the following needs to be updated for your environment ## it is expected that it will be copied from somewhere accessible to the control node ## e.g copy from ansible control node to remote host audit_bin_copy_location: /some/accessible/path # how to get audit files onto host options # options are git/copy/archive/get_url other e.g. if you wish to run from already downloaded conf audit_content: git # If using either archive, copy, get_url: ## Note will work with .tar files - zip will require extra configuration ### If using get_url this is expecting github url in tar.gz format e.g. ### https://github.com/ansible-lockdown/UBUNTU22-CIS-Audit/archive/refs/heads/benchmark-v1.0.0.tar.gz audit_conf_source: "some path or url to copy from" # Destination for the audit content to be placed on managed node # note may not need full path e.g. /opt with the directory being the {{ benchmark }}-Audit directory audit_conf_dest: "/opt" # Where the audit logs are stored audit_log_dir: '/opt' ### Goss Settings ## ####### END ######## # These variables correspond with the CIS rule IDs or paragraph numbers defined in # the CIS benchmark documents. # PLEASE NOTE: These work in coordination with the section # group variables and tags. # You must enable an entire section in order for the variables below to take effect. # Section 1 is Initial setup (FileSystem Configuration, Configure Software Updates, Filesystem Integrity Checking, Secure Boot Settings, # Additional Process Hardening, Mandatory Access Control, Command Line Warning Banners, and GNOME Display Manager) rhel9cis_rule_1_1_1_1: true rhel9cis_rule_1_1_1_2: true rhel9cis_rule_1_1_2_1: true rhel9cis_rule_1_1_2_2: true rhel9cis_rule_1_1_2_3: true rhel9cis_rule_1_1_2_4: true rhel9cis_rule_1_1_3_1: true rhel9cis_rule_1_1_3_2: true rhel9cis_rule_1_1_3_3: true rhel9cis_rule_1_1_4_1: true rhel9cis_rule_1_1_4_2: true rhel9cis_rule_1_1_4_3: true rhel9cis_rule_1_1_4_4: true rhel9cis_rule_1_1_5_1: true rhel9cis_rule_1_1_5_2: true rhel9cis_rule_1_1_5_3: true rhel9cis_rule_1_1_5_4: true rhel9cis_rule_1_1_6_1: true rhel9cis_rule_1_1_6_2: true rhel9cis_rule_1_1_6_3: true rhel9cis_rule_1_1_6_4: true rhel9cis_rule_1_1_7_1: true rhel9cis_rule_1_1_7_2: true rhel9cis_rule_1_1_7_3: true rhel9cis_rule_1_1_8_1: true rhel9cis_rule_1_1_8_2: true rhel9cis_rule_1_1_8_3: true rhel9cis_rule_1_1_8_4: true rhel9cis_rule_1_1_9: true rhel9cis_rule_1_2_1: true rhel9cis_rule_1_2_2: true rhel9cis_rule_1_2_3: true rhel9cis_rule_1_2_4: true rhel9cis_rule_1_3_1: true rhel9cis_rule_1_3_2: true rhel9cis_rule_1_3_3: true rhel9cis_rule_1_4_1: true rhel9cis_rule_1_4_2: true rhel9cis_rule_1_5_1: true rhel9cis_rule_1_5_2: true rhel9cis_rule_1_5_3: true rhel9cis_rule_1_6_1_1: true rhel9cis_rule_1_6_1_2: true rhel9cis_rule_1_6_1_3: true rhel9cis_rule_1_6_1_4: true rhel9cis_rule_1_6_1_5: true rhel9cis_rule_1_6_1_6: true rhel9cis_rule_1_6_1_7: true rhel9cis_rule_1_6_1_8: true rhel9cis_rule_1_7_1: true rhel9cis_rule_1_7_2: true rhel9cis_rule_1_7_3: true rhel9cis_rule_1_7_4: true rhel9cis_rule_1_7_5: true rhel9cis_rule_1_7_6: true rhel9cis_rule_1_8_1: true rhel9cis_rule_1_8_2: true rhel9cis_rule_1_8_3: true rhel9cis_rule_1_8_4: true rhel9cis_rule_1_8_5: true rhel9cis_rule_1_8_6: true rhel9cis_rule_1_8_7: true rhel9cis_rule_1_8_8: true rhel9cis_rule_1_8_9: true rhel9cis_rule_1_8_10: true rhel9cis_rule_1_9: true rhel9cis_rule_1_10: true # Section 2 rules are controling Services (Special Purpose Services, and service clients) rhel9cis_rule_2_1_1: true rhel9cis_rule_2_1_2: true rhel9cis_rule_2_2_1: true rhel9cis_rule_2_2_2: true rhel9cis_rule_2_2_3: true rhel9cis_rule_2_2_4: true rhel9cis_rule_2_2_5: true rhel9cis_rule_2_2_6: true rhel9cis_rule_2_2_7: true rhel9cis_rule_2_2_8: true rhel9cis_rule_2_2_9: true rhel9cis_rule_2_2_10: true rhel9cis_rule_2_2_11: true rhel9cis_rule_2_2_12: true rhel9cis_rule_2_2_13: true rhel9cis_rule_2_2_14: true rhel9cis_rule_2_2_15: true rhel9cis_rule_2_2_16: true rhel9cis_rule_2_2_17: true rhel9cis_rule_2_2_18: true rhel9cis_rule_2_3_1: true rhel9cis_rule_2_3_2: true rhel9cis_rule_2_3_3: true rhel9cis_rule_2_3_4: true rhel9cis_rule_2_4: true # Section 3 rules are used for securely configuring the network configuration(kernel params, ACL, Firewall settings) rhel9cis_rule_3_1_1: true rhel9cis_rule_3_1_2: true rhel9cis_rule_3_1_3: true rhel9cis_rule_3_2_1: true rhel9cis_rule_3_2_2: true rhel9cis_rule_3_3_1: true rhel9cis_rule_3_3_2: true rhel9cis_rule_3_3_3: true rhel9cis_rule_3_3_4: true rhel9cis_rule_3_3_5: true rhel9cis_rule_3_3_6: true rhel9cis_rule_3_3_7: true rhel9cis_rule_3_3_8: true rhel9cis_rule_3_3_9: true rhel9cis_rule_3_4_1_1: true rhel9cis_rule_3_4_1_2: true rhel9cis_rule_3_4_2_1: true rhel9cis_rule_3_4_2_2: true rhel9cis_rule_3_4_2_3: true rhel9cis_rule_3_4_2_4: true rhel9cis_rule_3_4_2_5: true rhel9cis_rule_3_4_2_6: true rhel9cis_rule_3_4_2_7: true # Section 4 rules are Logging and Auditing (Configure System Accounting (auditd), # Configure Data Retention, and Configure Logging) rhel9cis_rule_4_1_1_1: true rhel9cis_rule_4_1_1_2: true rhel9cis_rule_4_1_1_3: true rhel9cis_rule_4_1_1_4: true rhel9cis_rule_4_1_2_1: true rhel9cis_rule_4_1_2_2: true rhel9cis_rule_4_1_2_3: true rhel9cis_rule_4_1_3_1: true rhel9cis_rule_4_1_3_2: true rhel9cis_rule_4_1_3_3: true rhel9cis_rule_4_1_3_4: true rhel9cis_rule_4_1_3_5: true rhel9cis_rule_4_1_3_6: true rhel9cis_rule_4_1_3_7: true rhel9cis_rule_4_1_3_8: true rhel9cis_rule_4_1_3_9: true rhel9cis_rule_4_1_3_10: true rhel9cis_rule_4_1_3_11: true rhel9cis_rule_4_1_3_12: true rhel9cis_rule_4_1_3_13: true rhel9cis_rule_4_1_3_14: true rhel9cis_rule_4_1_3_15: true rhel9cis_rule_4_1_3_16: true rhel9cis_rule_4_1_3_17: true rhel9cis_rule_4_1_3_18: true rhel9cis_rule_4_1_3_19: true rhel9cis_rule_4_1_3_20: true rhel9cis_rule_4_1_3_21: true rhel9cis_rule_4_1_4_1: true rhel9cis_rule_4_1_4_2: true rhel9cis_rule_4_1_4_3: true rhel9cis_rule_4_1_4_4: true rhel9cis_rule_4_1_4_5: true rhel9cis_rule_4_1_4_6: true rhel9cis_rule_4_1_4_7: true rhel9cis_rule_4_1_4_8: true rhel9cis_rule_4_1_4_9: true rhel9cis_rule_4_1_4_10: true rhel9cis_rule_4_2_1_1: true rhel9cis_rule_4_2_1_2: true rhel9cis_rule_4_2_1_3: true rhel9cis_rule_4_2_1_4: true rhel9cis_rule_4_2_1_5: true rhel9cis_rule_4_2_1_6: true rhel9cis_rule_4_2_1_7: true rhel9cis_rule_4_2_2_1_1: true rhel9cis_rule_4_2_2_1_2: true rhel9cis_rule_4_2_2_1_3: true rhel9cis_rule_4_2_2_1_4: true rhel9cis_rule_4_2_2_2: true rhel9cis_rule_4_2_2_3: true rhel9cis_rule_4_2_2_4: true rhel9cis_rule_4_2_2_5: true rhel9cis_rule_4_2_2_6: true rhel9cis_rule_4_2_2_7: true rhel9cis_rule_4_2_3: true rhel9cis_rule_4_3: true # Section 5 rules control Access, Authentication, and Authorization (Configure time-based job schedulers, # Configure sudo, Configure SSH Server, Configure PAM and User Accounts and Environment) rhel9cis_rule_5_1_1: true rhel9cis_rule_5_1_2: true rhel9cis_rule_5_1_3: true rhel9cis_rule_5_1_4: true rhel9cis_rule_5_1_5: true rhel9cis_rule_5_1_6: true rhel9cis_rule_5_1_7: true rhel9cis_rule_5_1_8: true rhel9cis_rule_5_1_9: true rhel9cis_rule_5_2_1: true rhel9cis_rule_5_2_2: true rhel9cis_rule_5_2_3: true rhel9cis_rule_5_2_4: true rhel9cis_rule_5_2_5: true rhel9cis_rule_5_2_6: true rhel9cis_rule_5_2_7: true rhel9cis_rule_5_2_8: true rhel9cis_rule_5_2_9: true rhel9cis_rule_5_2_10: true rhel9cis_rule_5_2_12: true rhel9cis_rule_5_2_11: true rhel9cis_rule_5_2_13: true rhel9cis_rule_5_2_14: true rhel9cis_rule_5_2_15: true rhel9cis_rule_5_2_16: true rhel9cis_rule_5_2_17: true rhel9cis_rule_5_2_18: true rhel9cis_rule_5_2_19: true rhel9cis_rule_5_2_20: true rhel9cis_rule_5_3_1: true rhel9cis_rule_5_3_2: true rhel9cis_rule_5_3_3: true rhel9cis_rule_5_3_4: true rhel9cis_rule_5_3_5: true rhel9cis_rule_5_3_6: true rhel9cis_rule_5_3_7: true rhel9cis_rule_5_4_1: true rhel9cis_rule_5_4_2: true rhel9cis_rule_5_5_1: true rhel9cis_rule_5_5_2: true rhel9cis_rule_5_5_3: true rhel9cis_rule_5_5_4: true rhel9cis_rule_5_6_1_1: true rhel9cis_rule_5_6_1_2: true rhel9cis_rule_5_6_1_3: true rhel9cis_rule_5_6_1_4: true rhel9cis_rule_5_6_1_5: true rhel9cis_rule_5_6_2: true rhel9cis_rule_5_6_3: true rhel9cis_rule_5_6_4: true rhel9cis_rule_5_6_5: true rhel9cis_rule_5_6_6: true # Section 6 rules controls System Maintenance (System File Permissions and User and Group Settings) rhel9cis_rule_6_1_1: true rhel9cis_rule_6_1_2: true rhel9cis_rule_6_1_3: true rhel9cis_rule_6_1_4: true rhel9cis_rule_6_1_5: true rhel9cis_rule_6_1_6: true rhel9cis_rule_6_1_7: true rhel9cis_rule_6_1_8: true rhel9cis_rule_6_1_9: true rhel9cis_rule_6_1_10: true rhel9cis_rule_6_1_11: true rhel9cis_rule_6_1_12: true rhel9cis_rule_6_1_13: true rhel9cis_rule_6_1_14: true rhel9cis_rule_6_1_15: true rhel9cis_rule_6_2_1: true rhel9cis_rule_6_2_2: true rhel9cis_rule_6_2_3: true rhel9cis_rule_6_2_4: true rhel9cis_rule_6_2_5: true rhel9cis_rule_6_2_6: true rhel9cis_rule_6_2_7: true rhel9cis_rule_6_2_8: true rhel9cis_rule_6_2_9: true rhel9cis_rule_6_2_10: true rhel9cis_rule_6_2_11: true rhel9cis_rule_6_2_12: true rhel9cis_rule_6_2_13: true rhel9cis_rule_6_2_14: true rhel9cis_rule_6_2_15: true rhel9cis_rule_6_2_16: true ## Section 1 vars ## Control 1.1.2 # If set to `true`, rule will be implemented using the `tmp.mount` systemd-service, # otherwise fstab configuration will be used. # These /tmp settings will include nosuid,nodev,noexec to conform to CIS standards. rhel9cis_tmp_svc: false ## Control 1.2.1 # For new systems that have not yet run update the gpg key is not yet imported # Setting to `true` will allow a test on the package and force the import of the key rhel9cis_force_gpg_key_import: true ## Control 1.2.4 # When installing RHEL from authorized Red Hat source, RHEL will come with default YUM repository. NOT having a default YUM # repo ('rhel9cis_rhel_default_repo' set as 'false'), in conjunction with 'rhel9cis_rule_enable_repogpg' set as 'True', will enable the tasks # which check the GPG signatures for all the individual YUM repositories. rhel9cis_rhel_default_repo: true ## Control 1.2.4 # When 'rhel9cis_rule_enable_repogpg' is set to 'true'(in conjunction with 'rhel9cis_rhel_default_repo':'false'), conditions are met for # enabling the GPG signatures-check for all the individual YUM repositories. If GPG signatures-check is enabled on repositories which do not # support it(like RedHat), installation of packages will fail. rhel9cis_rule_enable_repogpg: true ## Control 1.4.1 # This variable will store the hashed GRUB bootloader password to be stored in '/boot/grub2/user.cfg' file. The default value # must be changed to a value that may be generated with this command 'grub2-mkpasswd-pbkdf2' and must comply with # this format: 'grub.pbkdf2.sha512...' rhel9cis_bootloader_password_hash: 'grub.pbkdf2.sha512.changethispassword' # pragma: allowlist secret ## Control 1.4.1 # This variable governs whether a bootloader password should be set in '/boot/grub2/user.cfg' file. rhel9cis_set_boot_pass: true ## Control 1.8.x - Settings for GDM # This variable specifies the GNOME configuration database file to which configurations are written. # (See "https://help.gnome.org/admin/system-admin-guide/stable/dconf-keyfiles.html.en") # The default database is 'local'. rhel9cis_dconf_db_name: local # This variable governs the number of seconds of inactivity before the screen goes blank. # Set max value for idle-delay in seconds (between 1 and 900) rhel9cis_screensaver_idle_delay: 900 # This variable governs the number of seconds the screen remains blank before it is locked. # Set max value for lock-delay in seconds (between 0 and 5) rhel9cis_screensaver_lock_delay: 5 ## Control 1.10 # This variable contains the value to be set as the system-wide crypto policy. Current rule enforces NOT USING # 'LEGACY' value(as it is less secure, it just ensures compatibility with legacy systems), therefore # possible values for this variable are, as explained by RedHat docs: # -'DEFAULT': reasonable default policy for today's standards (balances usability and security) # -'FUTURE': conservative security level that is believed to withstand any near-term future attacks # -'FIPS': A level that conforms to the FIPS140-2 requirements rhel9cis_crypto_policy: 'DEFAULT' ## Control 1.10 # This variable contains the value of the crypto policy module(combinations of policies and # sub-policies) to be allowed as default setting. Allowed options are defined in 'vars/main.yml' file, # using 'rhel9cis_allowed_crypto_policies_modules' variable. rhel9cis_crypto_policy_module: '' # System network parameters (host only OR host and router) # This variable governs whether specific CIS rules # concerned with acceptance and routing of packages are skipped. rhel9cis_is_router: false ## IPv6 requirement toggle # This variable governs whether ipv6 is enabled or disabled. rhel9cis_ipv6_required: true ## Control 1.3.1 - allow aide to be configured # AIDE is a file integrity checking tool, similar in nature to Tripwire. # While it cannot prevent intrusions, it can detect unauthorized changes # to configuration files by alerting when the files are changed. Review # the AIDE quick start guide and AIDE documentation before proceeding. # By setting this variable to `true`, all of the settings related to AIDE will be applied! rhel9cis_config_aide: true ## Control 1.3.2 AIDE cron settings # These are the crontab settings for periodical checking of the filesystem's integrity using AIDE. # The sub-settings of this variable provide the parameters required to configure # the cron job on the target system. # Cron is a time-based job scheduling program in Unix OS, which allows tasks to be scheduled # and executed automatically at a certain point in time. rhel9cis_aide_cron: # This variable represents the user account under which the cron job for AIDE will run. cron_user: root # This variable represents the path to the AIDE crontab file. cron_file: /etc/cron.d/aide_cron # This variable represents the actual command or script that the cron job # will execute for running AIDE. aide_job: '/usr/sbin/aide --check' # These variables define the schedule for the cron job # This variable governs the minute of the time of day when the AIDE cronjob is run. # It must be in the range `0-59`. aide_minute: 0 # This variable governs the hour of the time of day when the AIDE cronjob is run. # It must be in the range `0-23`. aide_hour: 5 # This variable governs the day of the month when the AIDE cronjob is run. # `*` signifies that the job is run on all days; furthermore, specific days # can be given in the range `1-31`; several days can be concatenated with a comma. # The specified day(s) can must be in the range `1-31`. aide_day: '*' # This variable governs months when the AIDE cronjob is run. # `*` signifies that the job is run in every month; furthermore, specific months # can be given in the range `1-12`; several months can be concatenated with commas. # The specified month(s) can must be in the range `1-12`. aide_month: '*' # This variable governs the weekdays, when the AIDE cronjob is run. # `*` signifies that the job is run on all weekdays; furthermore, specific weekdays # can be given in the range `0-7` (both `0` and `7` represent Sunday); several weekdays # can be concatenated with commas. aide_weekday: '*' ## Control 1.6.1.3|4|5 - SELinux policy settings # This selects type of policy; targeted or mls( multilevel ) # mls should not be used, since it will disable unconfined policy module # and may prevent some services from running. Requires SELinux not being disabled (by # having 'rhel9cis_selinux_disable' var set as 'true'), otherwise setting will be ignored. rhel9cis_selinux_pol: targeted ## Control 1.6.1.3|4 - SELinux configured and not disabled # This variable contains a specific SELinux mode, respectively: # - 'enforcing': SELinux policy IS enforced, therefore denies operations based on SELinux policy # rules. If system was installed with SELinux, this is enabled by default. # - 'permissive': SELinux policy IS NOT enforced, therefore does NOT deny any operation, only # logs AVC(Access Vector Cache) messages. RedHat docs suggest it "can be used # briefly to check if SELinux is the culprit in preventing your application # from working". # CIS expects enforcing since permissive allows operations that might compromise the system. # Even though logging still occurs. rhel9cis_selinux_enforce: enforcing # Whether or not to run tasks related to auditing/patching the desktop environment ## Section 2. Services ## Section 2.1 Time Synchronization ## Control 2.1.2 Time Synchronization servers - used in template file chrony.conf.j2 # The following variable represents a list of time servers used # for configuring chrony, timesyncd, and ntp. # Each list item contains two settings, `name` (the domain name of the server) and synchronization `options`. # The default setting for the `options` is `minpoll` but `iburst` can be used, please refer to the documentation # of the time synchronization mechanism you are using. rhel9cis_time_synchronization_servers: - 0.pool.ntp.org - 1.pool.ntp.org - 2.pool.ntp.org - 3.pool.ntp.org ## Control 2.1.2 - Time Synchronization servers # This variable should contain the default options to be used for every NTP server hostname defined # within the 'rhel9cis_time_synchronization_servers' var. rhel9cis_chrony_server_options: "minpoll 8" # This variable, if set to 'true'(default), will inform the kernel the system clock is kept synchronized # and the kernel will update the real-time clock every 11 minutes. Otherwise, if 'rtcsync' option is # disabled, chronyd will not be in sync(kernel discipline is disabled, 11 minutes mode will be off). rhel9cis_chrony_server_rtcsync: false # This variable configures the values to be used by chronyd to gradually correct any time offset, # by slowing down/speeding up the clock. An example of this directive usage would be: # 'makestep 1000 10'. # Step the system clock: # - IF the adjustment is larger than 1000 seconds # - but ONLY IN the first ten clock updates rhel9cis_chrony_server_makestep: "1.0 3" # This variable configures the minimum number of sources that need to be considered as selectable in the source # selection algorithm before the local clock is updated. Setting minsources to a larger number can be used to # improve the reliability, because multiple sources will need to correspond with each other. rhel9cis_chrony_server_minsources: 2 ## Section 2.2 Special Purposes # Service configuration variables (boolean). # Set the respective variable to true to keep the service, # otherwise the service is stopped and disabled ## Control 1.8.10-10, 2.2.1 # This variable governs whether rules dealing with GUI specific packages(and/or their settings) should # be executed either to: # - secure GDM, if GUI is needed('rhel9cis_gui: true') # - or remove GDM and X-Windows-system, if no GUI is needed('rhel9cis_gui: false') rhel9cis_gui: false ## Control 2.2.2 - Ensure Avahi Server is not installed # This variable, when set to false, will specify that Avahi Server packages should be uninstalled. rhel9cis_avahi_server: false ## Control 2.2.3 - Ensure CUPS is not installed # This variable, when set to false, will specify that CUPS(Common UNIX Printing System) package should be uninstalled. rhel9cis_cups_server: false ## Control 2.2.4 - Ensure DHCP Server is not installed # This variable, when set to false, will specify that DHCP server package should be uninstalled. rhel9cis_dhcp_server: false ## Control 2.2.5 - Ensure DNS Server is not installed # This variable, when set to false, will specify that DNS server package should be uninstalled. rhel9cis_dns_server: false ## Control 2.2.14 - Ensure dnsmasq is not installed # This variable, when set to false, will specify that dnsmasq package should be uninstalled. rhel9cis_dnsmasq_server: false ## Control 2.2.6 - Ensure VSFTP Server is not installed # This variable, when set to false, will specify that VSFTP server package should be uninstalled. rhel9cis_vsftpd_server: false ## Control 2.2.7 - Ensure TFTP Server is not installed # This variable, when set to false, will specify that TFTP server package should be uninstalled. rhel9cis_tftp_server: false ## Control 2.2.8 - Ensure a web server is not installed - HTTPD # This variable, when set to false, will specify that webserver packages(HTTPD) should be uninstalled. rhel9cis_httpd_server: false ## Control 2.2.8 - Ensure a web server is not installed - NGINX # This variable, when set to false, will specify that webserver packages(NGINX) should be uninstalled. rhel9cis_nginx_server: false ## Control 2.2.9 - Ensure IMAP and POP3 server is not installed - dovecot # This variable, when set to false, will specify that IMAP and POP3 servers(dovecot) should be uninstalled. rhel9cis_dovecot_server: false ## Control 2.2.9 - Ensure IMAP and POP3 server is not installed - cyrus-imapd # This variable, when set to false, will specify that IMAP and POP3 servers(cyrus-imapd) should be uninstalled. rhel9cis_imap_server: false ## Control 2.2.10 - Ensure Samba is not enabled # This variable, when set to false, will specify that 'samba' package should be uninstalled. rhel9cis_samba_server: false ## Control 2.2.11 - Ensure HTTP Proxy Server is not installed # This variable, when set to false, will specify that 'squid' package should be uninstalled. rhel9cis_squid_server: false ## Control 2.2.12 - Ensure net-snmp is not installed # This variable, when set to false, will specify that 'net-snmp' package should be uninstalled. rhel9cis_snmp_server: false ## Control 2.2.13 - Ensure telnet-server is not installed # This variable, when set to false, will specify that 'telnet-server' package should be uninstalled. rhel9cis_telnet_server: false ## Control 2.2.15 - Ensure mail transfer agent is configured for local-only mode # This variable, when system is NOT a mailserver, will configure Postfix to listen only on the loopback interface(the virtual # network interface that the server uses to communicate internally. rhel9cis_is_mail_server: false # Note the options # Client package configuration variables. # Packages are used for client services and Server- only remove if you dont use the client service # Set the respective variable to `true` to keep the # client package, otherwise it is uninstalled (false). ## Control 2.2.16 - Ensure nfs-utils is not installed or the nfs-server service is masked" # This variable specifies if the usage of NFS SERVER is needed. Execution of the rule which secures (by uninstalling or masking service) # NFS(if it's NOT needed) will depend on the var used in conjunction('rhel9cis_use_nfs_service') with current one, respectively: # - if Server IS NOT needed('false') and: # - Service IS NOT needed('rhel9cis_use_nfs_service: false'): 'nfs-utils' package will be removed # - Service IS needed('rhel9cis_use_nfs_service: true'): impossible to need the service without the server # - if Server IS needed('true') and: # - Service IS NOT needed('rhel9cis_use_nfs_service: false'): 'nfs-server' service will be masked # - Service IS needed('rhel9cis_use_nfs_service: true'): Rule will be SKIPPED. # | Server | Service | Result | # |---------|---------|-----------------------------------------------------------| # | false | false | Remove package | # | false | true | Needing 'service' without needing 'server' makes no sense | # | true | false | Mask 'service' | # | true | true | SKIP RULE, BOTH 'service' and 'server' are required | rhel9cis_use_nfs_server: false ## Control 2.2.16 - Ensure nfs-utils is not installed or the nfs-server service is masked. # This variable specifies if the usage of NFS SERVICE is needed. If it's: # - needed('true'): rule which uninstalls/masks-service WILL NOT be executed at all # - not needed('false'): rule which uninstalls/masks-service WILL be executed, its behavior being # controlled by the var used in conjunction with current one: # - removing 'nfs-utils' package('rhel9cis_use_nfs_server' set to 'false') # - masking the 'nfs-server' service('rhel9cis_use_nfs_server' set to 'true') rhel9cis_use_nfs_service: false ## Control 2.2.17 - Ensure rpcbind is not installed or the rpcbind services are masked # This variable specifies if the usage of RPC SERVER is needed. Execution of the rule which secures (by uninstalling or masking service) # RPC(if it's NOT needed) will depend on the var used in conjunction('rhel9cis_use_rpc_service') with current one, respectively: # - if Server IS NOT needed('false') and: # - Service IS NOT needed('rhel9cis_use_rpc_service: false'): 'rpcbind' package will be removed # - Service IS needed('rhel9cis_use_rpc_service: true'): impossible to need the service without the server # - if Server IS needed('true') and: # - Service IS NOT needed('rhel9cis_use_rpc_service: false'): 'rpcbind.socket' service will be masked # - Service IS needed('rhel9cis_use_rpc_service: true'): Rule will be SKIPPED. # | Server | Service | Result | # |---------|---------|-----------------------------------------------------------| # | false | false | Remove package | # | false | true | Needing 'service' without needing 'server' makes no sense | # | true | false | Mask 'service' | # | true | true | SKIP RULE, BOTH 'service' and 'server' are required | rhel9cis_use_rpc_server: false ## Control 2.2.17 - Ensure rpcbind is not installed or the rpcbind services are masked # This variable specifies if the usage of RPC SERVICE is needed. If it's: # - needed('true'): rule which uninstalls/masks-service WILL NOT be executed at all # - not needed('false'): rule which uninstalls/masks-service WILL be executed, its behavior being controlled by the var # used in conjunction with current one: # - removing 'rpcbind' package('rhel9cis_use_rpc_server' set to 'false') # - masking the 'rpcbind.socket' service('rhel9cis_use_rpc_server' set to 'true') rhel9cis_use_rpc_service: false ## Control 2.2.18 - Ensure rsync service is not enabled # This variable specifies if the usage of RSYNC SERVER is needed. Execution of the rule which secures (by uninstalling or masking service) # RSYNC(if it's NOT needed) will depend on the var used in conjunction('rhel9cis_use_rsync_service') with current one, respectively: # - if Server IS NOT needed('false') and: # - Service IS NOT needed('rhel9cis_use_rsync_service: false'): 'rsync-daemon' package will be removed # - Service IS needed('rhel9cis_use_rsync_service: true'): impossible to need the service without the server # - if Server IS needed('true') and: # - Service IS NOT needed('rhel9cis_use_rsync_service: false'): 'rsyncd' service will be masked # - Service IS needed('rhel9cis_use_rsync_service: true'): Rule will be SKIPPED. # | Server | Service | Result | # |---------|---------|-----------------------------------------------------------| # | false | false | Remove package | # | false | true | Needing 'service' without needing 'server' makes no sense | # | true | false | Mask 'service' | # | true | true | SKIP RULE, BOTH 'service' and 'server' are required | rhel9cis_use_rsync_server: false ## Control 2.2.18 - Ensure rsync service is not enabled # This variable specifies if the usage of RSYNC SERVICE is needed. If it's: # - needed('true'): rule which uninstalls/masks-service WILL NOT be executed at all # - not needed('false'): rule which uninstalls/masks-service WILL be executed, its behavior being controlled by the var # used in conjunction with current one: # - removing 'rsync-daemon' package('rhel9cis_use_rsync_server' set to 'false') # - masking the 'rsyncd' service('rhel9cis_use_rsync_server' set to 'true') rhel9cis_use_rsync_service: false ## Section 2.3 Service clients ## Control - 2.3.1 - Ensure telnet client is not installed # Set this variable to `true` to keep package `telnet`; otherwise, the package is uninstalled. rhel9cis_telnet_required: false ## Control - 2.3.2 - Ensure LDAP client is not installed # Set this variable to `true` to keep package `openldap-clients`; otherwise, the package is uninstalled. rhel9cis_openldap_clients_required: false ## Control - 2.3.3 - Ensure FTP client is not installed # Set this variable to `true` to keep package `tftp`; otherwise, the package is uninstalled. rhel9cis_tftp_client: false ## Control - 2.3.4 - Ensure FTP client is not installed # Set this variable to `true` to keep package `ftp`; otherwise, the package is uninstalled. rhel9cis_ftp_client: false ## Section 3 vars ## Sysctl # This variable governs if the task which updates sysctl(including sysctl reload) is executed. # NOTE: The current default value is likely to be overriden by other further tasks(via 'set_fact'). rhel9cis_sysctl_update: false # This variable governs if the task which flushes the IPv4 routing table is executed(forcing subsequent connections to # use the new configuration). # NOTE: The current default value is likely to be overriden by other further tasks(via 'set_fact'). rhel9cis_flush_ipv4_route: false # This variable governs if the task which flushes the IPv6 routing table is executed(forcing subsequent connections to # use the new configuration). # NOTE: The current default value is likely to be overriden by other further tasks(via 'set_fact'). rhel9cis_flush_ipv6_route: false ### Firewall Service to install and configure - Options are: # 1) either 'firewalld' # 2) or 'nftables' #### Some control allow for services to be removed or masked #### The options are under each heading #### absent = remove the package #### masked = leave package if installed and mask the service rhel9cis_firewall: firewalld ## Control 3.4.2.1 - Ensure firewalld default zone is set # This variable will set the firewalld default zone(that is used for everything that is not explicitly bound/assigned # to another zone): if there is no zone assigned to a connection, interface or source, only the default zone is used. rhel9cis_default_zone: public ## Control 3.4.2.2 - Ensure at least one nftables table exists # This variable governs if a table will be automatically created in nftables. Without a table (no default one), nftables # will not filter network traffic, so if this variable is set to 'false' and no tables exist, an alarm will be triggered! rhel9cis_nft_tables_autonewtable: true ## Controls 3.4.2.{2|3|4|6|7} nftables # This variable stores the name of the table to be used when configuring nftables(creating chains, configuring loopback # traffic, established connections, default deny). If 'rhel9cis_nft_tables_autonewtable' is set as true, a new table will # be created using as name the value stored by this variable. rhel9cis_nft_tables_tablename: filter ## Control 3.4.2.3 - Ensure nftables base chains exist # This variable governs if a nftables base chain(entry point for packets from the networking stack) will be automatically # created, if needed. Without a chain, a hook for input, forward, and delete, packets that would flow through those # chains will not be touched by nftables. rhel9cis_nft_tables_autochaincreate: true ## Controls: # - 1.7.1 - Ensure message of the day is configured properly # - 1.7.2 - Ensure local login warning banner is configured properly # - 1.7.3 - Ensure remote login warning banner is configured properly # This variable stores the content for the Warning Banner(relevant for issue, issue.net, motd). rhel9cis_warning_banner: Authorized uses only. All activity may be monitored and reported. # End Banner ## Section4 vars ### 4.1 Configure System Accounting #### 4.1.2 Configure Data Retention ## Controls what actions, when log files fill up # This variable controls how the audit system behaves when # log files are getting too full and space is getting too low. rhel9cis_auditd: # This variable tells the system what action to take when the system has detected # that it is starting to get low on disk space. Options are the same as for `admin_space_left_action`. space_left_action: email # This variable should contain a valid email address or alias(default value is root), # which will be used to send a warning when configured action is 'email'. action_mail_acct: root # This variable determines the action the audit system should take when disk # space runs low. # The options for setting this variable are as follows: # - `ignore`: the system does nothing when presented with the aforementioned issue; # - `syslog`: a message is sent to the system log about disk space running low; # - `suspend`: the system suspends recording audit events until more space is available; # - `halt`: the system is halted when disk space is critically low. # - `single`: the audit daemon will put the computer system in single user mode # CIS prescribes either `halt` or `single`. admin_space_left_action: halt # The max_log_file parameter should be based on your sites policy. max_log_file: 10 # This variable determines what action the audit system should take when the maximum # size of a log file is reached. # The options for setting this variable are as follows: # - `ignore`: the system does nothing when the size of a log file is full; # - `syslog`: a message is sent to the system log indicating the problem; # - `suspend`: the system suspends recording audit events until the log file is cleared or rotated; # - `rotate`: the log file is rotated (archived) and a new empty log file is created; # - `keep_logs`: the system attempts to keep as many logs as possible without violating disk space constraints. # CIS prescribes the value `keep_logs`. max_log_file_action: keep_logs # This value governs if the below extra-vars for auditd should be used by the role rhel9cis_auditd_extra_conf_usage: false # This can be used to configure other keys in auditd.conf # Example: # rhel9cis_auditd_extra_conf: # admin_space_left: '10%' # These variables governs the threshold(MegaBytes) under which the audit daemon should perform a # specific action to alert that the system is running low on disk space. rhel9cis_auditd_extra_conf: # Must be lower than the 'space_left' variable. admin_space_left: 50 space_left: 75 ## Control 4.1.1.4 - Ensure rhel9cis_audit_back_log_limit is sufficient # This variable represents the audit backlog limit, i.e., the maximum number of audit records that the # system can buffer in memory, if the audit subsystem is unable to process them in real-time. # Buffering in memory is useful in situations, where the audit system is overwhelmed # with incoming audit events, and needs to temporarily store them until they can be processed. # This variable should be set to a sufficient value. The CIS baseline recommends at least `8192` as value. rhel9cis_audit_back_log_limit: 8192 ## Control 4.1.3.x - Audit template # This variable governs if the auditd logic should be executed(if value is true). # NOTE: The current default value is likely to be overriden(via 'set_fact') by other further tasks(in sub-section 'Auditd rules'). update_audit_template: false ## Advanced option found in auditd post # This variable governs if defining user exceptions for auditd logging is acceptable. rhel9cis_allow_auditd_uid_user_exclusions: false # This variable contains a list of uids to be excluded(users whose actions are not logged by auditd) rhel9cis_auditd_uid_exclude: - 1999 ## Preferred method of logging ## Whether rsyslog or journald preferred method for local logging ## Control 4.2.1 | Configure rsyslog ## Control 4.2.2 | Configure journald # This variable governs which logging service should be used, choosing between 'rsyslog'(CIS recommendation) # or 'journald'(only one is implemented) will trigger the execution of the associated subsection, as the-best # practices are written wholly independent of each other. rhel9cis_syslog: rsyslog ## Control 4.2.1.5 | PATCH | Ensure logging is configured # This variable governs if current Ansible role should manage syslog settings # in /etc/rsyslog.conf file, namely mail, news and misc(warn, messages) rhel9cis_rsyslog_ansiblemanaged: true ## Control 4.2.1.6 - Ensure rsyslog is configured to send logs to a remote log host # This variable governs if 'rsyslog' service should be automatically configured to forward messages to a # remote log server. If set to 'false', the configuration of the 'omfwd' plugin, used to provide forwarding # over UDP or TCP, will not be performed. rhel9cis_remote_log_server: false ## Control 4.2.1.6 - Ensure rsyslog is configured to send logs to a remote log host # This variable configures the value of the 'target' parameter to be configured when enabling # forwarding syslog messages to a remote log server, thus configuring the actual FQDN/IP address of the # destination server. For this value to be reflected in the configuration, the variable which enables the # automatic configuration of rsyslog forwarding must be enabled('rhel9cis_remote_log_server: true'). rhel9cis_remote_log_host: logagg.example.com ## Control 4.2.1.6 - Ensure rsyslog is configured to send logs to a remote log host # This variable configures the value of the 'port' parameter to be configured when enabling # forwarding syslog messages to a remote log server. The default value for this destination port is 514. # For this value to be reflected in the configuration, the variable which enables the # automatic configuration of rsyslog forwarding must be enabled('rhel9cis_remote_log_server: true'). rhel9cis_remote_log_port: 514 ## Control 4.2.1.6 - Ensure rsyslog is configured to send logs to a remote log host # This variable configures the value("TCP"/"UDP") of the 'protocol' parameter to be configured when enabling # forwarding syslog messages to a remote log server. The default value for the 'omfwd' plug-in is UDP. # For this value to be reflected in the configuration, the variable which enables the # automatic configuration of rsyslog forwarding must be enabled('rhel9cis_remote_log_server: true'). rhel9cis_remote_log_protocol: tcp ## Control 4.2.1.6 - Ensure rsyslog is configured to send logs to a remote log host # This variable governs how often an action is retried(value is passed to 'action.resumeRetryCount' parameter) before # it is considered to have failed(that roughly translates to discarded messages). The default value is 0, but # when set to "-1"(eternal), this setting would prevent rsyslog from dropping messages when retrying to connect # if server is not responding. For this value to be reflected in the configuration, the variable which enables the # automatic configuration of rsyslog forwarding must be enabled('rhel9cis_remote_log_server: true'). rhel9cis_remote_log_retrycount: 100 ## Control 4.2.1.6 - Ensure rsyslog is configured to send logs to a remote log host # This variable configures the maximum number of messages that can be hold(value is passed to 'queue.size' parameter). # For this value to be reflected in the configuration, the variable which enables the automatic configuration # of rsyslog forwarding must be enabled('rhel9cis_remote_log_server: true'). rhel9cis_remote_log_queuesize: 1000 ## Control 4.2.1.7 - Ensure rsyslog is not configured to receive logs from a remote client # This variable expresses whether the system is used as a log server or not. If set to: # - 'false', current system will act as a log CLIENT, thus it should NOT receive data from other hosts. # - 'true', current system will act as a log SERVER, enabling centralised log management(by protecting log integrity # from local attacks on remote clients) rhel9cis_system_is_log_server: false ## Control 4.2.2.1.2 - Ensure systemd-journal-remote is configured # 'rhel9cis_journal_upload_url' is the ip address to upload the journal entries to # URL value may specify either just the hostname or both the protocol and hostname. 'https' is the default. The port # number may be specified after a colon (":"), otherwise 19532 will be used by default. rhel9cis_journal_upload_url: 192.168.50.42 ## The paths below have the default paths/files, but allow user to create custom paths/filenames ## Control 4.2.2.1.2 - Ensure systemd-journal-remote is configured # This variable specifies the path to the private key file used by the remote journal # server to authenticate itself to the client. This key is used alongside the server's # public certificate to establish secure communication. rhel9cis_journal_upload_serverkeyfile: "/etc/ssl/private/journal-upload.pem" ## Control 4.2.2.1.2 - Ensure systemd-journal-remote is configured # This variable specifies the path to the public certificate file of the remote journal # server. This certificate is used to verify the authenticity of the remote server. rhel9cis_journal_servercertificatefile: "/etc/ssl/certs/journal-upload.pem" ## Control 4.2.2.1.2 - Ensure systemd-journal-remote is configured # This variable specifies the path to a file containing one or more public certificates # of certificate authorities (CAs) that the client trusts. These trusted certificates are used # to validate the authenticity of the remote server's certificate. rhel9cis_journal_trustedcertificatefile: "/etc/ssl/ca/trusted.pem" # ATTENTION: Uncomment the keyword below when values are set! ## Control 4.2.2.6 - Ensure journald log rotation is configured per site policy # Current variable configures the max amount of disk space the logs will use(thus, journal files # will not grow without bounds) # The variables below related to journald, please set these to your site specific values # These variable specifies how much disk space the journal may use up at most # Specify values in bytes or use K, M, G, T, P, E as units for the specified sizes. # See https://www.freedesktop.org/software/systemd/man/journald.conf.html for more information. rhel9cis_journald_systemmaxuse: 10M ## Control 4.2.2.6 - Ensure journald log rotation is configured per site policy # Current variable configures the amount of disk space to keep free for other uses. rhel9cis_journald_systemkeepfree: 100G ## Control 4.2.2.6 - Ensure journald log rotation is configured per site policy # This variable configures how much disk space the journal may use up at most. # Similar with 'rhel9cis_journald_systemmaxuse', but related to runtime space. rhel9cis_journald_runtimemaxuse: 10M ## Control 4.2.2.6 - Ensure journald log rotation is configured per site policy # This variable configures the actual amount of disk space to keep free # Similar with 'rhel9cis_journald_systemkeepfree', but related to runtime space. rhel9cis_journald_runtimekeepfree: 100G ## Control 4.2.2.6 - Ensure journald log rotation is configured per site policy # Current variable governs the settings for log retention(how long the log files will be kept). # Thus, it specifies the maximum time to store entries in a single journal # file before rotating to the next one. Set to 0 to turn off this feature. # The given values is interpreted as seconds, unless suffixed with the units # `year`, `month`, `week`, `day`, `h` or `m` to override the default time unit of seconds. # Values are Xm, Xh, Xday, Xweek, Xmonth, Xyear, for example 2week is two weeks # ATTENTION: Uncomment the keyword below when values are set! rhel9cis_journald_maxfilesec: 1month ## Control 4.3 - Ensure logrotate is configured # This variable defines the log file rotation period. # Options are: daily, weekly, monthly, yearly. rhel9cis_logrotate: "daily" ## Section5 vars ## Section 5.2 - SSH # This value, containing the absolute filepath of the produced 'sshd' config file, allows usage of # drop-in files('/etc/ssh/ssh_config.d/{ssh_drop_in_name}.conf', supported by RHEL9) when CIS adopts them. # Otherwise, the default value is '/etc/ssh/ssh_config'. rhel9_cis_sshd_config_file: /etc/ssh/sshd_config ## Controls: ## - 5.2.4 - Ensure SSH access is limited ## - 5.2.19 - Ensure SSH LoginGraceTime is set to one minute or less ## - 5.2.20 - Ensure SSH Idle Timeout Interval is configured rhel9cis_sshd: # This variable sets the maximum number of unresponsive "keep-alive" messages # that can be sent from the server to the client before the connection is considered # inactive and thus, closed. clientalivecountmax: 3 # This variable sets the time interval in seconds between sending "keep-alive" # messages from the server to the client. These types of messages are intended to # keep the connection alive and prevent it being terminated due to inactivity. clientaliveinterval: 15 # This variable specifies the amount of seconds allowed for successful authentication to # the SSH server. logingracetime: 60 # This variable, if specified, configures a list of USER name patterns, separated by spaces, to allow SSH # access for users whose user name matches one of the patterns. This is done # by setting the value of `AllowUsers` option in `/etc/ssh/sshd_config` file. # If an USER@HOST format will be used, the specified user will be allowed only on that particular host. # allowusers: "" # (String) This variable, if specified, configures a list of GROUP name patterns, separated by spaces, to allow SSH access # for users whose primary group or supplementary group list matches one of the patterns. This is done # by setting the value of `AllowGroups` option in `/etc/ssh/sshd_config` file. # allowgroups: "wheel" # This variable, if specified, configures a list of USER name patterns, separated by spaces, to prevent SSH access # for users whose user name matches one of the patterns. This is done # by setting the value of `DenyUsers` option in `/etc/ssh/sshd_config` file. # If an USER@HOST format will be used, the specified user will be restricted only on that particular host. denyusers: "nobody" # This variable, if specified, configures a list of GROUP name patterns, separated by spaces, # to prevent SSH access for users whose primary group or supplementary group list matches one of the patterns. This is done # by setting the value of `DenyGroups` option in `/etc/ssh/sshd_config` file. denygroups: "" ## Control 5.2.5 - Ensure SSH LogLevel is appropriate # This variable is used to control the verbosity of the logging produced by the SSH server. # The options for setting it are as follows: # - `QUIET`: Minimal logging; # - `FATAL`: logs only fatal errors; # - `ERROR`: logs error messages; # - `INFO`: logs informational messages in addition to errors; # - `VERBOSE`: logs a higher level of detail, including login attempts and key exchanges; # - `DEBUG`: generates very detailed debugging information including sensitive information. # - `DEBUG(x)`: Whereas x = debug level 1 to 3, DEBUG=DEBUG1. rhel9cis_ssh_loglevel: INFO ## Control 5.2.18 - Ensure SSH MaxSessions is set to 10 or less # This variable value specifies the maximum number of open sessions that are permitted from # a given location rhel9cis_ssh_maxsessions: 4 ## Control 5.6.1.4 - Ensure inactive password lock is 30 days or less rhel9cis_inactivelock: # This variable specifies the number of days of inactivity before an account will be locked. # CIS requires a value of 30 days or less. lock_days: 30 ## Section 5.4 - Configure authselect: Custom authselect profile settings(name, profile to customize, options) ## Controls: # - 5.4.1 - Ensure custom authselect profile is used('custom_profile_name', 'default_file_to_copy' subsettings) # - 5.4.2 - Ensure authselect includes with-faillock | with auth select profile('custom_profile_name') # Settings in place now will fail, they are placeholders from the control example. Due to the way many multiple # options and ways to configure this control needs to be enabled and settings adjusted to minimise risk. rhel9cis_authselect: # This variable configures the name of the custom profile to be created and selected. custom_profile_name: custom-profile # This variable configures the ID of the existing profile that should be used as a base for the new profile. default_file_to_copy: "sssd --symlink-meta" options: with-sudo with-faillock without-nullok ## Control 5.4.1 - Ensure custom authselect profile is used # This variable governs if an authselect custom profile should be automatically created, by copying and # customizing one of the default profiles. The default profiles include: sssd, winbind, or the nis. This profile can then be # customized to follow site specific requirements. rhel9cis_authselect_custom_profile_create: false ## Control 5.4.2 - Ensure authselect includes with-faillock | Create custom profiles # This variable governs if the existing custom profile should be selected(Note: please keep in mind that all future updates # to the PAM templates and meta files in the original profile will be reflected in your custom profile, too.) rhel9cis_authselect_custom_profile_select: false ## Control 5.5.1 - Ensure password creation requirements are configured - PAM rhel9cis_pam_password: # This variable sets the minimum chars a password needs to be set. minlen: 14 # This variable set password complexity,the minimum number of # character types that must be used (i.e., uppercase, lowercase, digits, other) # Set to 2, passwords cannot have all lower/upper case. # Set to 3, passwords needs numbers. # set to 4, passwords will have to include all four types of characters. minclass: 4 ## Controls # - 5.5.2 - Ensure lockout for failed password attempts is configured # - 5.5.3 - Ensure password reuse is limited # - 5.5.4 - Ensure password hashing algorithm is SHA-512 # - 5.4.2 - Ensure authselect includes with-faillock rhel9cis_pam_faillock: # This variable sets the amount of time a user will be unlocked after the max amount of # password failures. unlock_time: 900 # This variable sets the amount of tries a password can be entered, before a user is locked. deny: 5 # This variable represents the number of password change cycles, after which # an user can re-use a password. # CIS requires a value of 5 or more. remember: 5 # UID settings for interactive users # These are discovered via logins.def if set true discover_int_uid: false ### Controls: # - 5.6.2 - Ensure system accounts are secured # - 6.2.10 - Ensure local interactive user home directories exist # - 6.2.11 - Ensure local interactive users own their home directories # This variable sets the minimum number from which to search for UID # Note that the value will be dynamically overwritten if variable `dicover_int_uid` has # been set to `true`. min_int_uid: 1000 ### Controls: # - 6.2.10 - Ensure local interactive user home directories exist # - 6.2.11 - Ensure local interactive users own their home directories # This variable sets the maximum number at which the search stops for UID # Note that the value will be dynamically overwritten if variable `dicover_int_uid` has # been set to `true`. max_int_uid: 65533 ## Control 5.3.3 - Ensure sudo log file exists # By default, sudo logs through syslog(3). However, to specify a custom log file, the # 'logfile' parameter will be used, setting it with current variable's value. # This variable defines the path and file name of the sudo log file. rhel9cis_sudolog_location: "/var/log/sudo.log" ## Control 5.3.6 -Ensure sudo authentication timeout is configured correctly # This variable sets the duration (in minutes) during which a user's authentication credentials # are cached after successfully authenticating using "sudo". This allows the user to execute # multiple commands with elevated privileges without needing to re-enter their password for each # command within the specified time period. CIS requires a value of at most 15 minutes. rhel9cis_sudo_timestamp_timeout: 15 ## Control 5.4.2 - authselect and faillock ## This option is used at your own risk it will enable faillock for users ## Only to be used on a new clean system if not using authselect ## THIS CAN BREAK ACCESS EVEN FOR ROOT - PLEASE UNDERSTAND RISKS ! rhel9cis_add_faillock_without_authselect: false # This needs to be set to 'ACCEPT'(as string), besides setting 'rhel9cis_add_faillock_without_authselect' # to 'true', in order to include the 'with-failock' option to the current authselect profile. rhel9cis_5_4_2_risks: NEVER ## Section 5.6.1.x: Shadow Password Suite Parameters rhel9cis_pass: ## Control 5.6.1.1 - Ensure password expiration is 365 days or less # This variable governs after how many days a password expires. # CIS requires a value of 365 or less. max_days: 365 ## Control 5.6.1.2 - Ensure minimum days between password changes is 7 or more # This variable specifies the minimum number of days allowed between changing # passwords. CIS requires a value of at least 1. min_days: 7 ## Control 5.6.1.3 - Ensure password expiration warning days is 7 or more # This variable governs, how many days before a password expires, the user will be warned. # CIS requires a value of at least 7. warn_age: 7 ## Allow the forcing of setting user_max_days for logins. # This can break current connecting user access rhel9cis_force_user_maxdays: false ## Allow the force setting of minimum days between changing the password # This can break current connecting user access rhel9cis_force_user_mindays: false ## Allow the forcing of of number of days before warning users of password expiry # This can break current connecting user access rhel9cis_force_user_warnage: false ## Control 5.6.3 - Ensure default user shell timeout is 900 seconds or less # Session timeout setting file (TMOUT setting can be set in multiple files) # Timeout value is in seconds. (60 seconds * 10 = 600) rhel9cis_shell_session_timeout: # This variable specifies the path of the timeout setting file. # (TMOUT setting can be set in multiple files, but only one is required for the # rule to pass. Options are: # - a file in `/etc/profile.d/` ending in `.s`, # - `/etc/profile`, or # - `/etc/bash.bashrc`. file: /etc/profile.d/tmout.sh # This variable represents the amount of seconds a command or process is allowed to # run before being forcefully terminated. # CIS requires a value of at most 900 seconds. timeout: 600 ## Control 5.6.1.5 - Ensure all users last password change date is in the past # Allow ansible to expire password for account with a last changed date in the future. Setting it # to 'false' will just display users in violation, while 'true' will expire those users passwords. rhel9cis_futurepwchgdate_autofix: true ## Control 5.3.7 - Ensure access to the 'su' command is restricted # This variable determines the name of the group of users that are allowed to use the su command. # CIS requires that such a group be CREATED(named according to site policy) and be kept EMPTY. rhel9cis_sugroup: nosugroup ## Section6 vars ## Control 6.1.15 - Audit system file permissions | Create list and warning # The RPM package-manager has many useful options. For example, using option: # - '-V': RPM can automatically check if system packages are correctly installed # - '-qf': RPM can be used to determine which package a particular file belongs to # Auditing system file-permissions takes advantage of the combination of those two options and, therefore, is able to # detect any discrepancy regarding installed packages, redirecting the output of this combined # command into a specific file. If no output is returned, the package is installed correctly. # Current variable stores the preferred absolute filepath for such a file, therefore if this file # contains any lines, an alert message will be generated to warn about each discrepancy. rhel9cis_rpm_audit_file: /var/tmp/rpm_file_check ## Control 6.1.9 - Ensure no world writable files exist # Allow ansible to adjust world-writable files. False will just display world-writable files, True will remove world-writable. rhel9cis_no_world_write_adjust: true ## Control 6.2.16 - Ensure local interactive user dot files are not group or world writable # This boolean variable governs if current role should follow filesystem links for changes to # user home directory. rhel_09_6_2_16_home_follow_symlinks: false # thanks to @dulin-gnet and community for rhel8-cis feedback. #### Goss Configuration Settings #### # Set correct env for the run_audit.sh script from https://github.com/ansible-lockdown/{{ benchmark }}-Audit.git" audit_run_script_environment: AUDIT_BIN: "{{ audit_bin }}" AUDIT_FILE: 'goss.yml' AUDIT_CONTENT_LOCATION: "{{ audit_out_dir }}"