--- # defaults file for rhel9-cis # WARNING: # These values may be overridden 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 # Run the OS validation check # Supported OSs will not need for this to be changed - see README e.g. CentOS os_check: true # Disruption is high ## Run tests that are considered higher risk and could have a system impact if not properly tested ## Default false ## Will be fine if clean new un-configured build rhel9cis_disruption_high: 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". # Some sections support sub-section modularization. The super-section and sub-section must both be true # for the sub-section to execute. rhel9cis_section1: true rhel9cis_section2: true rhel9cis_section3: true rhel9cis_section4: true rhel9cis_section5: true rhel9cis_section5_1: true rhel9cis_section5_2: true rhel9cis_section5_3: true rhel9cis_section5_4: true rhel9cis_section6: true rhel9cis_section7: true # This is used for audit purposes to run only specific level use the tags # e.g. # - level1-server # - level2-workstation rhel9cis_level_1: true rhel9cis_level_2: true # Create managed not custom local_facts files create_benchmark_facts: true # The path where the ansible facts file is created if audit facts are not present ansible_facts_path: /etc/ansible/facts.d ## 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 ## Benchmark name used by auditing control role # The audit variable found at the base ## metadata for Audit benchmark benchmark_version: 'v2.0.0' 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 ### ### Settings for associated Audit role using Goss ### ########################################### ### Goss is required on the remote host ### ### vars/auditd.yml for other settings ### ## Audit setup # Audits are carried out using Goss. This variable # determines whether execution of the role prepares for auditing # by installing the required binary. setup_audit: false ## Enable audits to run - this runs the audit and get the latest content # This variable governs whether the audit using the # separately maintained audit role using Goss # is carried out. # This runs the audit and gets 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 # Ability to limit the number of concurrent processes used by goss (default 50) audit_max_concurrent: 50 ## Only run Audit do not remediate audit_only: false ### As part of audit_only ### # 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(Goss) # Options are 'copy' or 'download' - detailed settings at the bottom of this file # - if 'copy': # - the filepath mentioned via the below 'audit_bin_copy_location' var will be used to access already downloaded Goss # - if 'download': # - the GitHub Goss-releases URL will be used for a fresh-download, via 'audit_bin_url' and 'audit_pkg_arch_name' vars 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 retrieve the audit role # The role for auditing is maintained separately. # This variable specifies the method of how to get the audit role # options are git/copy/archive/get_url other e.g. if you wish to run from already downloaded conf # onto the system. The options are as follows: # - 'git': clone audit content from GitHub REPOSITORY, set up via `audit_file_git` var, and # VERSION(e.g. branch, tag name), set up via `audit_git_version` var. # - 'copy': copy from path as specified in variable `audit_conf_copy`. # - 'archive': same as 'copy', only that the specified filepath needs to be unpacked. # - 'get_url': Download from url as specified in variable `audit_files_url` 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/RHEL9-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' ## Ability to collect and take audit files moving to a centralized location # This enables the collection of the files from the host fetch_audit_output: false # Method of getting,uploading the summary files ## Ensure access and permissions are available for these to occur. ## options are # fetch - fetches from server and moves to location on the ansible controller (could be a mount point available to controller) # copy - copies file to a location available to the managed node audit_output_collection_method: fetch # Location to put the audit files audit_output_destination: /opt/audit_summaries/ ### 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 Fixes # 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) # Filesystem kernel modules rhel9cis_rule_1_1_1_1: true rhel9cis_rule_1_1_1_2: true rhel9cis_rule_1_1_1_3: true rhel9cis_rule_1_1_1_4: true rhel9cis_rule_1_1_1_5: true rhel9cis_rule_1_1_1_6: true rhel9cis_rule_1_1_1_7: true rhel9cis_rule_1_1_1_8: true rhel9cis_rule_1_1_1_9: true # Filesystems # /tmp rhel9cis_rule_1_1_2_1_1: true rhel9cis_rule_1_1_2_1_2: true rhel9cis_rule_1_1_2_1_3: true rhel9cis_rule_1_1_2_1_4: true # /dev/shm rhel9cis_rule_1_1_2_2_1: true rhel9cis_rule_1_1_2_2_2: true rhel9cis_rule_1_1_2_2_3: true rhel9cis_rule_1_1_2_2_4: true # /home rhel9cis_rule_1_1_2_3_1: true rhel9cis_rule_1_1_2_3_2: true rhel9cis_rule_1_1_2_3_3: true # /var rhel9cis_rule_1_1_2_4_1: true rhel9cis_rule_1_1_2_4_2: true rhel9cis_rule_1_1_2_4_3: true # /var/tmp rhel9cis_rule_1_1_2_5_1: true rhel9cis_rule_1_1_2_5_2: true rhel9cis_rule_1_1_2_5_3: true rhel9cis_rule_1_1_2_5_4: true # /var/log rhel9cis_rule_1_1_2_6_1: true rhel9cis_rule_1_1_2_6_2: true rhel9cis_rule_1_1_2_6_3: true rhel9cis_rule_1_1_2_6_4: true # /var/log/audit rhel9cis_rule_1_1_2_7_1: true rhel9cis_rule_1_1_2_7_2: true rhel9cis_rule_1_1_2_7_3: true rhel9cis_rule_1_1_2_7_4: true # Package Mgmt # Config Pkg Repos rhel9cis_rule_1_2_1_1: true rhel9cis_rule_1_2_1_2: true rhel9cis_rule_1_2_1_3: true rhel9cis_rule_1_2_1_4: true # Package updates rhel9cis_rule_1_2_2_1: true # Selinux rhel9cis_rule_1_3_1_1: true rhel9cis_rule_1_3_1_2: true rhel9cis_rule_1_3_1_3: true rhel9cis_rule_1_3_1_4: true rhel9cis_rule_1_3_1_5: true rhel9cis_rule_1_3_1_6: true rhel9cis_rule_1_3_1_7: true rhel9cis_rule_1_3_1_8: true # Bootloader rhel9cis_rule_1_4_1: true rhel9cis_rule_1_4_2: true # Additional Process Hardening rhel9cis_rule_1_5_1: true rhel9cis_rule_1_5_2: true rhel9cis_rule_1_5_3: true rhel9cis_rule_1_5_4: true # Config system wide Crypto rhel9cis_rule_1_6_1: true rhel9cis_rule_1_6_2: true rhel9cis_rule_1_6_3: true rhel9cis_rule_1_6_4: true rhel9cis_rule_1_6_5: true rhel9cis_rule_1_6_6: true rhel9cis_rule_1_6_7: true # Command line warning banners 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 # Gnome Display Manager 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 ## Section 2 Fixes # Section 2 rules are controlling Services (Special Purpose Services, and service clients) # Configure Server Services rhel9cis_rule_2_1_1: true rhel9cis_rule_2_1_2: true rhel9cis_rule_2_1_3: true rhel9cis_rule_2_1_4: true rhel9cis_rule_2_1_5: true rhel9cis_rule_2_1_6: true rhel9cis_rule_2_1_7: true rhel9cis_rule_2_1_8: true rhel9cis_rule_2_1_9: true rhel9cis_rule_2_1_10: true rhel9cis_rule_2_1_11: true rhel9cis_rule_2_1_12: true rhel9cis_rule_2_1_13: true rhel9cis_rule_2_1_14: true rhel9cis_rule_2_1_15: true rhel9cis_rule_2_1_16: true rhel9cis_rule_2_1_17: true rhel9cis_rule_2_1_18: true rhel9cis_rule_2_1_19: true rhel9cis_rule_2_1_20: true rhel9cis_rule_2_1_21: true rhel9cis_rule_2_1_22: true # Configure Client Services 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 # Configure Time Synchronization rhel9cis_rule_2_3_1: true rhel9cis_rule_2_3_2: true rhel9cis_rule_2_3_3: true # Job Schedulers # cron rhel9cis_rule_2_4_1_1: true rhel9cis_rule_2_4_1_2: true rhel9cis_rule_2_4_1_3: true rhel9cis_rule_2_4_1_4: true rhel9cis_rule_2_4_1_5: true rhel9cis_rule_2_4_1_6: true rhel9cis_rule_2_4_1_7: true rhel9cis_rule_2_4_1_8: true # at rhel9cis_rule_2_4_2_1: true ## Section 3 Fixes # Section 3 rules are used for securely configuring the network configuration(kernel params, ACL, Firewall settings) # Network Devices rhel9cis_rule_3_1_1: true rhel9cis_rule_3_1_2: true rhel9cis_rule_3_1_3: true # Network Kernel Modules rhel9cis_rule_3_2_1: true rhel9cis_rule_3_2_2: true rhel9cis_rule_3_2_3: true rhel9cis_rule_3_2_4: true # Network Kernel Parameters 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_3_10: true rhel9cis_rule_3_3_11: true ## Section 4 Fixes # Section 4 rules are Logging and Auditing (Configure System Accounting (auditd), # Configure Data Retention, and Configure Logging) # Firewall utility rhel9cis_rule_4_1_1: true rhel9cis_rule_4_1_2: true # Configure firewalld rhel9cis_rule_4_2_1: true rhel9cis_rule_4_2_2: true # Configure nftables rhel9cis_rule_4_3_1: true rhel9cis_rule_4_3_2: true rhel9cis_rule_4_3_3: true rhel9cis_rule_4_3_4: true ## Section 5 Fixes # 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) # Configure SSH Server 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_1_10: true rhel9cis_rule_5_1_11: true rhel9cis_rule_5_1_12: true rhel9cis_rule_5_1_13: true rhel9cis_rule_5_1_14: true rhel9cis_rule_5_1_15: true rhel9cis_rule_5_1_16: true rhel9cis_rule_5_1_17: true rhel9cis_rule_5_1_18: true rhel9cis_rule_5_1_19: true rhel9cis_rule_5_1_20: true rhel9cis_rule_5_1_21: true rhel9cis_rule_5_1_22: true # 5.2 Configure Privilege Escalation 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 # 5.3.1.x Configure PAM software packages rhel9cis_rule_5_3_1_1: true rhel9cis_rule_5_3_1_2: true rhel9cis_rule_5_3_1_3: true # 5.3.2 Configure authselect rhel9cis_rule_5_3_2_1: true rhel9cis_rule_5_3_2_2: true rhel9cis_rule_5_3_2_3: true rhel9cis_rule_5_3_2_4: true rhel9cis_rule_5_3_2_5: true # 5.3.3.1 Configure pam_faillock module rhel9cis_rule_5_3_3_1_1: true rhel9cis_rule_5_3_3_1_2: true rhel9cis_rule_5_3_3_1_3: true # 5.3.3.2 Configure pam_pwquality module rhel9cis_rule_5_3_3_2_1: true rhel9cis_rule_5_3_3_2_2: true rhel9cis_rule_5_3_3_2_3: true rhel9cis_rule_5_3_3_2_4: true rhel9cis_rule_5_3_3_2_5: true rhel9cis_rule_5_3_3_2_6: true rhel9cis_rule_5_3_3_2_7: true rhel9cis_rule_5_3_3_2_8: true # 5.3.3.3 Configure pam_pwhistory module # These are added as part of 5.3.2.4 using jinja2 template rhel9cis_rule_5_3_3_3_1: true rhel9cis_rule_5_3_3_3_2: true rhel9cis_rule_5_3_3_3_3: true # 5.3.3.4 Configure pam_unix module rhel9cis_rule_5_3_3_4_1: true rhel9cis_rule_5_3_3_4_2: true rhel9cis_rule_5_3_3_4_3: true rhel9cis_rule_5_3_3_4_4: true # 5.4 User Accounts and Environment # 5.4.1 Configure shadow password suite parameters rhel9cis_rule_5_4_1_1: true rhel9cis_rule_5_4_1_2: true rhel9cis_rule_5_4_1_3: true rhel9cis_rule_5_4_1_4: true rhel9cis_rule_5_4_1_5: true rhel9cis_rule_5_4_1_6: true # 5.4.2 Configure root and system accounts and environment rhel9cis_rule_5_4_2_1: true rhel9cis_rule_5_4_2_2: true rhel9cis_rule_5_4_2_3: true rhel9cis_rule_5_4_2_4: true rhel9cis_rule_5_4_2_5: true rhel9cis_rule_5_4_2_6: true rhel9cis_rule_5_4_2_7: true rhel9cis_rule_5_4_2_8: true # 5.4.2 Configure user default environment rhel9cis_rule_5_4_3_1: true rhel9cis_rule_5_4_3_2: true rhel9cis_rule_5_4_3_3: true ## Section 6 Fixes # Section 6 rules control Logging and Auditing # Configure Integrity Checking rhel9cis_rule_6_1_1: true rhel9cis_rule_6_1_2: true rhel9cis_rule_6_1_3: true # 6.2.1 Configure systemd-journald service rhel9cis_rule_6_2_1_1: true rhel9cis_rule_6_2_1_2: true rhel9cis_rule_6_2_1_3: true rhel9cis_rule_6_2_1_4: true # 6.2.2.x Configure journald rhel9cis_rule_6_2_2_1_1: true rhel9cis_rule_6_2_2_1_2: true rhel9cis_rule_6_2_2_1_3: true rhel9cis_rule_6_2_2_1_4: true rhel9cis_rule_6_2_2_2: true rhel9cis_rule_6_2_2_3: true rhel9cis_rule_6_2_2_4: true # 6.2.3 Configure rsyslog rhel9cis_rule_6_2_3_1: true rhel9cis_rule_6_2_3_2: true rhel9cis_rule_6_2_3_3: true rhel9cis_rule_6_2_3_4: true rhel9cis_rule_6_2_3_5: true rhel9cis_rule_6_2_3_6: true rhel9cis_rule_6_2_3_7: true rhel9cis_rule_6_2_3_8: true # 6.2.4 Configure Logfiles rhel9cis_rule_6_2_4_1: true # 6.3 Configure Auditing # 6.3.1 Configure auditd Service rhel9cis_rule_6_3_1_1: true rhel9cis_rule_6_3_1_2: true rhel9cis_rule_6_3_1_3: true rhel9cis_rule_6_3_1_4: true # 6.3.2 Configure Data Retention rhel9cis_rule_6_3_2_1: true rhel9cis_rule_6_3_2_2: true rhel9cis_rule_6_3_2_3: true rhel9cis_rule_6_3_2_4: true # 6.3.3 Configure auditd Rules rhel9cis_rule_6_3_3_1: true rhel9cis_rule_6_3_3_2: true rhel9cis_rule_6_3_3_3: true rhel9cis_rule_6_3_3_4: true rhel9cis_rule_6_3_3_5: true rhel9cis_rule_6_3_3_6: true rhel9cis_rule_6_3_3_7: true rhel9cis_rule_6_3_3_8: true rhel9cis_rule_6_3_3_9: true rhel9cis_rule_6_3_3_10: true rhel9cis_rule_6_3_3_11: true rhel9cis_rule_6_3_3_12: true rhel9cis_rule_6_3_3_13: true rhel9cis_rule_6_3_3_14: true rhel9cis_rule_6_3_3_15: true rhel9cis_rule_6_3_3_16: true rhel9cis_rule_6_3_3_17: true rhel9cis_rule_6_3_3_18: true rhel9cis_rule_6_3_3_19: true rhel9cis_rule_6_3_3_20: true rhel9cis_rule_6_3_3_21: true # 6.3.4 Configure auditd File Access rhel9cis_rule_6_3_4_1: true rhel9cis_rule_6_3_4_2: true rhel9cis_rule_6_3_4_3: true rhel9cis_rule_6_3_4_4: true rhel9cis_rule_6_3_4_5: true rhel9cis_rule_6_3_4_6: true rhel9cis_rule_6_3_4_7: true rhel9cis_rule_6_3_4_8: true rhel9cis_rule_6_3_4_9: true rhel9cis_rule_6_3_4_10: true ## Section 7 Fixes # Section 7 rules control System Maintenance # System File Permissions rhel9cis_rule_7_1_1: true rhel9cis_rule_7_1_2: true rhel9cis_rule_7_1_3: true rhel9cis_rule_7_1_4: true rhel9cis_rule_7_1_5: true rhel9cis_rule_7_1_6: true rhel9cis_rule_7_1_7: true rhel9cis_rule_7_1_8: true rhel9cis_rule_7_1_9: true rhel9cis_rule_7_1_10: true rhel9cis_rule_7_1_11: true rhel9cis_rule_7_1_12: true rhel9cis_rule_7_1_13: true # 7.2 Local User and Group Settings rhel9cis_rule_7_2_1: true rhel9cis_rule_7_2_2: true rhel9cis_rule_7_2_3: true rhel9cis_rule_7_2_4: true rhel9cis_rule_7_2_5: true rhel9cis_rule_7_2_6: true rhel9cis_rule_7_2_7: true rhel9cis_rule_7_2_8: true rhel9cis_rule_7_2_9: true ## Section 1 vars ## Ability to enable debug on mounts to assist in troubleshooting # Mount point changes are set based upon facts created in Prelim # these then build the variable and options that is passed to the handler to set the mount point for the controls in section1. rhel9cis_debug_mount_data: false ## 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 1.2.1.3 # 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 1.2.1.3 # 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 1.3.1.3|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 1.3.1.3|4|5 - SELinux policy settings # 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 ## 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 ## Controls 1.6.x and Controls 5.1.x # This variable governs if current Ansible role should manage system-wide crypto policy. rhel9cis_crypto_policy_ansiblemanaged: true # 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' # 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, which currently are: # - 'OSPP' # - 'AD-SUPPORT' # - 'AD-SUPPORT-LEGACY' rhel9cis_crypto_policy_module: '' ## Controls 1.6.x # 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 those listed in the 'rhel9cis_allowed_crypto_policies_modules' variable. rhel9cis_additional_crypto_policy_module: '' ## 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 users only. All activity may be monitored and reported. # End Banner ## Control 1.8.x - Settings for GDM # do not run Control 1.8.x if using a display manager different than gdm rhel9cis_display_manager: "gdm" # 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') # The value of this variable is set automatically, if gnome is present this variable # will always have `true` as a value, and `false` otherwise. rhel9cis_gui: "{{ prelim_gnome_present.stat.exists | default(false) }}" # 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 ## 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 ### ### The set of rules that make up section 2.1, are used for ensuring that ### certain services are not installed on the OS. ### The following list of variables contain two types: the ones that end in '_services', and the ones that end in '_mask' ### in '_mask'. For completely removing a service both those variables referencing that service shall be set to 'false'. ### For masking a service the type that ends in '_mask' shall be set to 'true'. ### Set this variable to `true` to keep service `autofs`; otherwise, the service is uninstalled. ### ########################################### ## Controls 2.1.x - Configure Server Services # Set this variable to `true` to keep service `autofs`; otherwise, the service is uninstalled. rhel9cis_autofs_services: false # Set this variable to `true` to mask service `autofs`. rhel9cis_autofs_mask: false # Set this variable to `true` to keep service `avahi`; otherwise, the service is uninstalled. rhel9cis_avahi_server: false # Set this variable to `true` to mask service `avahi`. rhel9cis_avahi_mask: false # Set this variable to `true` to keep service `dhcp`; otherwise, the service is uninstalled. rhel9cis_dhcp_server: false # Set this variable to `true` to mask service `dhcp`. rhel9cis_dhcp_mask: false # Set this variable to `true` to keep service `dns`; otherwise, the service is uninstalled. rhel9cis_dns_server: false # Set this variable to `true` to mask service `dns`. rhel9cis_dns_mask: false # Set this variable to `true` to keep service `dnsmasq`; otherwise, the service is uninstalled. rhel9cis_dnsmasq_server: false # Set this variable to `true` to mask service `dnsmasq`. rhel9cis_dnsmasq_mask: false # Set this variable to `true` to keep service `samba`; otherwise, the service is uninstalled. rhel9cis_samba_server: false # Set this variable to `true` to mask service `samba`. rhel9cis_samba_mask: false # Set this variable to `true` to keep service `ftp`; otherwise, the service is uninstalled. rhel9cis_ftp_server: false # Set this variable to `true` to mask service `ftp`. rhel9cis_ftp_mask: false # Set this variable to `true` to keep service `message`; otherwise, the service is uninstalled. rhel9cis_message_server: false # This is for messaging dovecot and cyrus-imap # Set this variable to `true` to mask service `message`. rhel9cis_message_mask: false # Set this variable to `true` to keep service `nfs`; otherwise, the service is uninstalled. rhel9cis_nfs_server: true # Set this variable to `true` to mask service `nfs`. rhel9cis_nfs_mask: true # Set this variable to `true` to keep service `nis`; otherwise, the service is uninstalled. rhel9cis_nis_server: true # set to mask if nis client required # Set this variable to `true` to mask service `nis`. rhel9cis_nis_mask: false # Set this variable to `true` to keep service `print`; otherwise, the service is uninstalled. rhel9cis_print_server: false # replaces cups # Set this variable to `true` to mask service `print`. rhel9cis_print_mask: false # Set this variable to `true` to keep service `rpc`; otherwise, the service is uninstalled. rhel9cis_rpc_server: true # Set this variable to `true` to mask service `rpc`. rhel9cis_rpc_mask: true # Set this variable to `true` to keep service `rsync`; otherwise, the service is uninstalled. rhel9cis_rsync_server: false # Set this variable to `true` to mask service `rsync`. rhel9cis_rsync_mask: false # Set this variable to `true` to keep service `snmp`; otherwise, the service is uninstalled. rhel9cis_snmp_server: false # Set this variable to `true` to mask service `snmp`. rhel9cis_snmp_mask: false # Set this variable to `true` to keep service `telnet`; otherwise, the service is uninstalled. rhel9cis_telnet_server: false # Set this variable to `true` to mask service `telnet`. rhel9cis_telnet_mask: false # Set this variable to `true` to keep service `tftp`; otherwise, the service is uninstalled. rhel9cis_tftp_server: false # Set this variable to `true` to mask service `tftp`. rhel9cis_tftp_mask: false # Set this variable to `true` to keep service `squid`; otherwise, the service is uninstalled. rhel9cis_squid_server: false # Set this variable to `true` to mask service `squid`. rhel9cis_squid_mask: false # Set this variable to `true` to keep service `httpd`; otherwise, the service is uninstalled. rhel9cis_httpd_server: false # Set this variable to `true` to mask service `httpd`. rhel9cis_httpd_mask: false # Set this variable to `true` to keep service `nginx`; otherwise, the service is uninstalled. rhel9cis_nginx_server: false # Set this variable to `true` to mask service `nginx`. rhel9cis_nginx_mask: false # Set this variable to `true` to keep service `xinetd`; otherwise, the service is uninstalled. rhel9cis_xinetd_server: false # Set this variable to `true` to mask service `xinetd`. rhel9cis_xinetd_mask: false # Set this variable to `true` to keep service `xwindow`; otherwise, the service is uninstalled. rhel9cis_xwindow_server: false # will remove mask not an option ## Control 2.1.21 - Ensure mail transfer agent is configured for local-only mode # This variable if set to 'false', ensures that the mail transfer agent is configured for # local-only mode. rhel9cis_is_mail_server: false ## Section 2.2 Service clients ## Control - 2.2.1 - Ensure FTP client is not installed # Set this variable to `true` to keep package `ftp`; otherwise, the package is uninstalled. rhel9cis_ftp_client: false ## Control - 2.2.2 - 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 - 2.2.3 - Ensure nis client is not installed # Set this variable to `true` to keep package `nis`(`ypbind`); otherwise, the package is uninstalled. rhel9cis_ypbind_required: false ## Control - 2.2.4 - 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 - 2.2.5 - Ensure tftp client is not installed # Set this variable to `true` to keep package `tftp`; otherwise, the package is uninstalled. rhel9cis_tftp_client: false ## Section 3 vars ## Control 3.1.1 - Ensure IPv6 status is identified # This variable governs whether ipv6 is enabled or disabled. rhel9cis_ipv6_required: true # rhel9cis_ipv6_disable defines the method of disabling IPv6, sysctl vs kernel rhel9cis_ipv6_disable_method: "sysctl" ## Control 3.1.2 - Ensure wireless interfaces are disabled # if wireless adapter found allow network manager to be installed rhel9cis_install_network_manager: false # This variable holds the name of the network manager package, and it is used # as a conditional to implement control 3.1.2. If the network manager package # is present on the system then the control will be implemented! rhel9cis_network_manager_package_name: NetworkManager ## Control 3.1.3 - Ensure bluetooth services are not in use # Set this variable to `true` to keep service `bluetooth`; otherwise, the service is uninstalled. rhel9cis_bluetooth_service: false # Set this variable to `true` to mask service `bluetooth`. rhel9cis_bluetooth_mask: false ## Controls 3.3.x 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 # This variable governs if the task which updates sysctl(including sysctl reload) is executed. # NOTE: The current default value is likely to be overridden 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 overridden 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 overridden by other further tasks(via 'set_fact'). rhel9cis_flush_ipv6_route: false ## Section 4 vars ### 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 4.2.2 - Ensure firewalld loopback traffic is configured # 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 ## Controls 4.3.x # 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 # 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 4.3.1 - 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 ## Section 5 vars ## Section 5.1 - 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'. rhel9cis_sshd_config_file: /etc/ssh/sshd_config ## Control 5.1.7 - Ensure sshd access is configured # 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. rhel9cis_sshd_allowusers: "{% if ansible_facts.user_id != 'root' %}{{ ansible_facts.user_id }}{% elif ansible_env.SUDO_USER is defined %}{{ ansible_env.SUDO_USER }}{% endif %}" ## Control 5.1.7 - Ensure sshd access is configured # (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. rhel9cis_sshd_allowgroups: "" ## Control 5.1.7 - Ensure sshd access is configured # 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. rhel9cis_sshd_denyusers: "nobody" ## Control 5.1.7 - Ensure sshd access is configured # 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. rhel9cis_sshd_denygroups: "" ## Control 5.1.9 - Ensure sshd ClientAliveInterval and ClientAliveCountMax are configured # 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. rhel9cis_sshd_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. rhel9cis_sshd_clientaliveinterval: 15 ## Control 5.1.10 - Ensure sshd DisableForwarding is enabled # By Default this will also disablex11 forwarding # set 'yes' if x11 is required this can be changed to run in /etc/ssh/ssh_config.d/50-redhat.conf # This variable's value is used in the `/etc/ssh/ssh_config.d/50-redhat.conf` file to # disable X11Forwarding. If X11 is required, set this variable's value to `yes`! rhel9cis_sshd_x11forwarding: 'no' ## Control 5.1.14 - Ensure SSH LoginGraceTime is set to one minute or less # This variable specifies the amount of seconds allowed for successful authentication to # the SSH server. rhel9cis_sshd_logingracetime: 60 ## Control 5.1.15 - 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 5.1.16 - Ensure sshd MaxAuthTries is configured # The MaxAuthTries parameter specifies the maximum number of authentication # attempts permitted per connection. When the login failure count reaches half the # number, error messages will be written to the syslog file detailing the login failure. rhel9cis_ssh_maxauthtries: '4' ## Control 5.1.17 - Ensure sshd MaxStartups is configured # The MaxStartups parameter specifies the maximum number of concurrent unauthenticated connections to the SSH daemon. rhel9cis_ssh_maxstartups: '10:30:60' ## Control 5.1.18 - Ensure sshd MaxSessions is configured # This variable value specifies the maximum number of open sessions that are permitted from # a given location. CIS recommends it to be 10 or less. rhel9cis_ssh_maxsessions: 4 ## Control 5.2.x - 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 5.2.4 - Ensure users must provide password for escalation # The following variable specifies a list of users that should not be required to provide a password # for escalation. Feel free to edit it according to your needs. rhel9cis_sudoers_exclude_nopasswd_list: - ec2-user - vagrant ## Control 5.2.6 - 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 5.2.7 - 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: sugroup ## Controls 5.3.x PAM and Authselect # Do not use authselect if: # Your host is part of Linux Identity Management. # Joining your host to an IdM domain with the ipa-client-install command automatically configures SSSD authentication on your host. # Your host is part of Active Directory via SSSD. # Calling the realm join command to join your host to an Active Directory domain automatically configures SSSD authentication on your host. rhel9cis_allow_authselect_updates: true ## Control 5.3.1.2 - Ensure latest version of authselect is installed # The following variables controls the implementation of control 5.3.1.2. # If you want the latest version to be installed set this variable's value # to `true`. rhel9cis_authselect_pkg_update: false # NOTE the risks if system is using SSSD or using ipa-client-install ## PAM AND Authselect ## Controls 5.3.x # This variable configures the name of the custom profile to be created and selected. # To be changed from default - cis_example_profile. This setting needs to be adjusted # in order to minimise risk. rhel9cis_authselect_custom_profile_name: cis_example_profile # Name of the existing authselect profile to copy - options can be found with # ```authselect list``` on the host to be configured rhel9cis_authselect_default_profile_to_copy: "sssd --symlink-meta" ## Control 5.3.3.1.1 - # This variable sets the amount of tries a password can be entered, before a user is locked. rhel9cis_pam_faillock_deny: 5 ## Control 5.3.3.2, 5.3.2.2 # This variable sets the amount of time a user will be unlocked after the max amount of # password failures. rhel9cis_pam_faillock_unlock_time: 900 ## Control 5.3.3.1.3 - Ensure password failed attempts lockout includes root account # This variable is used in the task that ensures that even the root account # is included in the password failed attempts lockout measure. # The following variable is used in the 'regexp' field. This field is used to find the # line in the file. If the line matches the regular expression, it will be replaced # with the line parameter's value. rhel9cis_pamroot_lock_option: even_deny_root ## Control 5.3.3.2.1 - Ensure password number of changed characters is configured # This variable holds the path to the configuration file that will be created (or overwritten if already existing) # in order to implement the 'Ensure password number of changed characters is configured' control. rhel9cis_passwd_difok_file: etc/security/pwquality.conf.d/50-pwdifok.conf # pragma: allowlist secret # This variable's value represents the minimum number of characters that must be different between # the new password and the old password. It helps ensure that users don't create new passwords that # are too similar to their previous ones, enhancing security. CIS states that this value should be at least 2. rhel9cis_passwd_difok_value: 2 ## Control 5.3.3.2.2 - Ensure minimum password length is configured # This variable holds the path to the configuration file that will be created (or overwritten if already existing) # in order to implement the 'Ensure minimum password length is configured' control. rhel9cis_passwd_minlen_file: etc/security/pwquality.conf.d/50-pwlength.conf # pragma: allowlist secret # This variable specifies the minimum length that a password must have to be considered valid. # CIS states that this value should be at least 14. rhel9cis_passwd_minlen_value: 14 ## Control 5.3.3.2.3 - Ensure password complexity is configured # The following variable holds the path to the configuration file that will be created (or overwritten if already existing) # in order to implement the 'Ensure password complexity is configured' control. rhel9cis_passwd_complex_file: etc/security/pwquality.conf.d/50-pwcomplexity.conf # pragma: allowlist secret # This variable holds the options for configuring the password complexity. # Options supported are: 'minclass' or 'credits'. rhel9cis_passwd_complex_option: minclass # pragma: allowlist secret # The following variable sets the password complexity via 'minclass'. The 'minclass' option provides # the minimum number of classes of characters required in a new password. (digits, uppercase, lowercase, others). e.g. # For example a value of 4 would mean that it requires digits, uppercase, lower case, and special characters. rhel9cis_passwd_minclass: 4 # The following variables set the password complexity via the 'credits' option. # Each of the variables represents a requirement for complexity. # The 'dcredit' variable is the maximum credit for having digits in the new password. # If less than 0 it is the minimum number of digits in the new password. # e.g. dcredit = -1 requires at least one digit rhel9cis_passwd_dcredit: -1 # The 'ucredit' variable is the maximum credit for having uppercase characters in the new password. # If less than 0 it is the minimum number of uppercase characters in the new password. # e.g. ucredit = -1 requires at least one uppercase character rhel9cis_passwd_ucredit: -2 # The 'ocredit' variable is the maximum credit for having other characters in the new password. # If less than 0 it is the minimum number of other characters in the new password. # e.g. ocredit = -1 requires at least one special character rhel9cis_passwd_ocredit: 0 # The 'lcredit' variable is the maximum credit for having lowercase characters in the new password. # If less than 0 it is the minimum number of lowercase characters in the new password. # e.g. lcredit = -1 requires at least one lowercase character rhel9cis_passwd_lcredit: -2 ## Control 5.3.3.2.4 - Ensure password same consecutive characters is configured # This variable holds the path to the configuration file that will be created (or overwritten if already existing) # in order to implement the 'Ensure password same consecutive characters is configured' control. rhel9cis_passwd_maxrepeat_file: etc/security/pwquality.conf.d/50-pwrepeat.conf # pragma: allowlist secret # The following variable sets the maximum number of allowed same consecutive characters in a new password. rhel9cis_passwd_maxrepeat_value: 3 ## Control 5.3.3.2.5 - Ensure password maximum sequential characters is configured # This variable holds the path to the configuration file that will be created (or overwritten if already existing) # in order to implement the 'Ensure password maximum sequential characters is configured' control. rhel9cis_passwd_maxsequence_file: etc/security/pwquality.conf.d/50-pwmaxsequence.conf # pragma: allowlist secret # The following variable sets the maximum length of monotonic character sequences in the new password. # Examples of such sequence are '12345' or 'fedcb' . The check is disabled if the value is 0 . rhel9cis_passwd_maxsequence_value: 3 ## Control 5.3.3.2.6 - Ensure password dictionary check is enabled # This variable holds the path to the configuration file that will be created (or overwritten if already existing) # in order to implement the 'Ensure password dictionary check is enabled' control rhel9cis_passwd_dictcheck_file: etc/security/pwquality.conf.d/50-pwdictcheck.conf # pragma: allowlist secret # The following variable's value sets whether to check for the words from the cracklib dictionary. # When set to '1', this option enables dictionary checks, ensuring that passwords are not based on common # dictionary words, which helps prevent users from choosing easily guessable passwords. # When set to '0', dictionary checks are disabled. CIS states that it shall always be set to '1'. rhel9cis_passwd_dictcheck_value: 1 # This variable is used in one of the config files to ensure password quality checking is enforced rhel9cis_passwd_quality_enforce_value: 1 ## Control 5.3.3.2.7 - Ensure password quality is enforced for the root user # This variable holds the path to the configuration file that will be created (or overwritten if already existing) # in order to implement the 'Ensure password quality is enforced for the root user' control. rhel9cis_passwd_quality_enforce_root_file: etc/security/pwquality.conf.d/50-pwroot.conf # pragma: allowlist secret # The following variable enforces that the root user must adhere to the same password quality policies as other users. rhel9cis_passwd_quality_enforce_root_value: enforce_for_root # pragma: allowlist secret ## Control 5.3.3.3.1 - Ensure password history remember is configured # This variable represents the number of password change cycles, after which # a user can re-use a password. CIS requires a value of 24 or more. rhel9cis_pamd_pwhistory_remember: 24 ## Controls 5.3.3.4.3, 5.4.1.4 # The following variable's value represents the hashing algorithm used rhel9cis_passwd_hash_algo: sha512 # pragma: allowlist secret ## Control 5.4.1.1 - 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. rhel9cis_pass_max_days: 365 # The following variable allows the forcing of setting user_max_days for logins. # This can break current connecting user access rhel9cis_force_user_maxdays: false ## Control 5.4.1.2 - 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. rhel9cis_pass_min_days: 7 # The following variable allows the force setting of minimum days between changing the password # This can break current connecting user access rhel9cis_force_user_mindays: false ## Control 5.4.1.3 - 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. rhel9cis_pass_warn_age: 7 # The following variable allows the forcing of number of days before warning users of password expiry # This can break current connecting user access rhel9cis_force_user_warnage: false ## Control 5.4.1.5 - Ensure inactive password lock is configured 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 ## Control 5.4.1.6 - 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 5.4.2.6 - Ensure root user umask is configured # The following variable specifies the "umask" to configure for the root user. # The user file-creation mode mask ( umask ) is used to determine the file # permission for newly created directories and files. In Linux, the default # permissions for any newly created directory is 0777 ( rwxrwxrwx ), and for # any newly created file it is 0666 ( rw-rw-rw- ). The umask modifies the default # Linux permissions by restricting (masking) these permissions. The umask is not # simply subtracted, but is processed bitwise. Bits set in the umask are cleared # in the resulting file mode. CIS recommends setting 'umask' to '0027' or more # restrictive. rhel9cis_root_umask: '0027' # 0027 or more restrictive ## Control 5.4.2.7 - Ensure system accounts are secured | Set nologin # The system users on this list are allowed to have a shell (e.g. applications # that require a shell to function) rhel9cis_system_users_shell: [] ## Control 5.4.3.2 - Configuring user shell timeout # This dictionary is related to ensuring the rule about user shell timeout # 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. rhel9cis_shell_session_timeout: 900 # 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`. rhel9cis_shell_session_file: /etc/profile.d/tmout.sh ## Control 5.4.3.3 - Ensure default user umask is configured # The following variable specifies the "umask" to set in the `/etc/bash.bashrc` and `/etc/profile`. # The value needs to be `027` or more restrictive to comply with CIS standards. rhel9cis_bash_umask: '0027' # 0027 or more restrictive ## Section 6 vars ## Control 6.1.1 - Ensure AIDE is installed # 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 the settings related to AIDE # will be applied! rhel9cis_config_aide: true # This variable sets a maximum allowed age of the AIDE database file until # the file is rebuilt. If the file is older than the value below, the role # will automatically rebuild the database file. # e.g. options:1w = 1 week, 1d = 1day 1h = 1 hour rhel9cis_aide_db_file_age: 1w # If AIDE is already setup this variable forces a new database # file to be created. rhel9cis_aide_db_recreate: false # This variable is used to check if there is already an existing database file # created by AIDE on the target system. If it is not present, the role will generate # a database file with the same name as the value of this variable. rhel9cis_aide_db_file: /var/lib/aide/aide.db.gz ## Control 6.1.2 - Ensure filesystem integrity is regularly checked # The following variable sets how AIDE is scanned. # Available options are either cron or timer. rhel9cis_aide_scan: cron # 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: '*' ## Preferred method of logging ## Controls 6.2.1.x | Configure systemd-journald service ## Controls 6.2.2.x | Configured journald ## Controls 6.2.3.x | Configure rsyslog # This variable governs which logging service should be used, choosing between 'rsyslog' # or 'journald'(CIS recommendation) will trigger the execution of the associated subsection, as the-best # practices are written wholly independent of each other. rhel9cis_syslog: rsyslog ## Control 6.2.1.3 - 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 6.2.1.3 - 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 6.2.1.3 - 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 6.2.1.3 - 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 6.2.1.3 - 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 6.2.2.1.2 - Ensure systemd-journal-upload authentication 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 ## Control 6.2.2.1.2 - 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. The path below has the default # path/file, but it is also allowed for a user to create its custom path/filename. rhel9cis_journal_upload_serverkeyfile: "/etc/ssl/private/journal-upload.pem" ## Control 6.2.2.1.2 - 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. The path # below has the default path/file, but it is also allowed for a user to create its custom # path/filename. rhel9cis_journal_servercertificatefile: "/etc/ssl/certs/journal-upload.pem" ## Control 6.2.2.1.2 - 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. The path below has the default ## path/file, but it is also allowed for a user to create its custom path/filename. rhel9cis_journal_trustedcertificatefile: "/etc/ssl/ca/trusted.pem" # ATTENTION: Uncomment the keyword below when values are set! ## Control 6.2.3.5 | 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 6.2.3.6 - 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 6.2.3.6 - 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 6.2.3.6 - 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 6.2.3.6 - 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 6.2.3.6 - 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 6.2.3.6 - 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 6.2.3.7 - 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 6.2.3.8 rsyslog rotate # This variable configures whether to set your own rsyslog logrotate setting # alternate to logrotate default settings. Please refer to logrotate options # to match your site requirements # This variable sets when to rotate rhel9cis_rsyslog_logrotate_rotated_when: weekly # This variable sets how many rotations of the file to keep rhel9cis_rsyslog_logrotate_rotatation_keep: 4 # The following variable defines whether to set the compress option # or not. Setting it to `true` will carry out the setting. rhel9cis_rsyslog_logrotate_compress: true # The following variable defines whether to set the missingok option # or not. Setting it to `true` will carry out the setting. rhel9cis_rsyslog_logrotate_missingok: true # The following variable defines whether to set the notifempty option # or not. Setting it to `true` will carry out the setting. rhel9cis_rsyslog_logrotate_notifempty: true # The following variable defines whether to set extra options that can # be defined in the `rhel9cis_rsyslog_logrotate_create_opts` variable # The variable can be found underneath this variable, in a commented # state. rhel9cis_rsyslog_logrotate_create: true # Extra options that can be added according to rsyslog documentation # Uncomment and add the required options e.g. mode owner group # rhel9cis_rsyslog_logrotate_create_opts: ## Control 6.3.1.3 - Ensure audit_backlog_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 ## Controls 6.3.2.x - What to do when log files fill up ## Control 6.3.2.1 - Ensure audit log storage size is configured # This variable specifies the maximum size in MB that an audit log file can reach # before it is archived or deleted to make space for the new audit data. # This should be set based on your sites policy. CIS does not provide a specific value. rhel9cis_auditd_max_log_file_size: 10 ## Control 6.3.2.2 - Ensure audit logs are not automatically deleted # 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`. rhel9cis_auditd_max_log_file_action: keep_logs ## Control 6.3.2.3 - Ensure system is disabled when audit logs are full # This variable determines how the system should act in case of issues with the disk. # The disk_full_action parameter tells the system what action to take when no free space is # available on the partition that holds the audit log files. # Valid values are ignore, syslog, rotate, exec, suspend, single, and halt. # CIS prescribes # disk_full_action parameter: # Set to halt - the auditd daemon will shutdown the system when the disk partition containing # the audit logs becomes full. # Set to single - the auditd daemon will put the computer system in single user mode when the # disk partition containing the audit logs becomes full. rhel9cis_auditd_disk_full_action: halt # This variable determines how the system should act in case of issues with the disk. # The disk_error_action parameter tells the system what action to take when an error is detected # on the partition that holds the audit log files. # Valid values are ignore, syslog, exec, suspend, single, and halt. # disk_error_action parameter: # Set to halt - the auditd daemon will shutdown the system when an error is detected on the # partition that holds the audit log files. # Set to single - the auditd daemon will put the computer system in single user mode when # an error is detected on the partition that holds the audit log files. # Set to syslog - the auditd daemon will issue no more than 5 consecutive warnings to syslog # when an error is detected on the partition that holds the audit log files. rhel9cis_auditd_disk_error_action: syslog ## Control 6.3.2.4 - Ensure system warns when audit logs are low on space # This variable tells the system what action to take when the system has detected # that it is starting to get low on disk space. # 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; # "email" - the system sends an email notification to the email address # specified in the "action_mail_acct" variable; # "exec" - the system executes a custom command when disk space is running # low; # "suspend" - the system suspends recording audit events until more space is available; # "single" - the audit daemon will put the computer system in single user mode; # "halt" - the system is halted when disk space is critically low; # CIS prescribes either 'email', 'exec', `single` or `halt`. rhel9cis_auditd_space_left_action: email # This variable tells the system what action to take when the system has detected # that it is low on disk space. # 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; # "email" - the system sends an email notification to the email address # specified in the "action_mail_acct" variable; # "exec" - the system executes a custom command when disk space is running # low; # "suspend" - the system suspends recording audit events until more space is available; # "single" - the audit daemon will put the computer system in single user mode; # "halt" - the system is halted when disk space is critically low; # CIS prescribes either `halt` or `single`. rhel9cis_auditd_admin_space_left_action: halt # This value governs if the below extra-vars (found in the `rhel9cis_auditd_extra_conf`) # for auditd should be used by the role. rhel9cis_auditd_extra_conf_usage: false ## Controls 6.3.3.x allow exceptions for UID in auditd config ## 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 # This can be used to configure other keys in auditd.conf rhel9cis_auditd_extra_conf: # This variable 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. Must be lower than # the 'space_left' variable. admin_space_left: '10%' # Section 7 Vars ## Control 7.1.11 - Ensure no world writable files exist # The following variable is a toggle for enabling/disabling the automated # removal of world-writable permissions from all files. # Possible values are `true` and `false`. rhel9cis_no_world_write_adjust: true ## Control 7.1.12 - Ensure no files or directories without an owner and a group exist # This variable holds the part of the command that helps detect which files and # directories do not have an owner and an affiliated group. rhel9cis_exclude_unowned_search_path: (! -path "/run/user/*" -a ! -path "/proc/*" -a ! -path "*/containerd/*" -a ! -path "*/kubelet/pods/*" -a ! -path "*/kubelet/plugins/*" -a ! -path "/sys/fs/cgroup/memory/*" -a ! -path "/var/*/private/*") # The value of this variable specifies the owner that will be set for unowned files and directories. rhel9cis_unowned_owner: root # The value of this variable specifies the group that will be set for ungrouped files and directories. rhel9cis_ungrouped_group: root # This variable is a toggle for enabling/disabling the automated # setting of an owner (specified in variable `rhel9cis_unowned_owner`) # for all unowned files and directories. # Possible values are `true` and `false`. rhel9cis_ownership_adjust: true ## Control 7.1.13 - Ensure SUID and SGID files are reviewed # This variable is a toggle for enabling/disabling the automated removal # of the SUID bit from all files on all mounts. # Possible values are `true` and `false`. rhel9cis_suid_sgid_adjust: false ## Control 7.2.8 - Ensure local interactive user home directories are configured # UID settings for interactive users # These are discovered via logins.def if set true rhel9cis_discover_int_uid: true # This variable sets the minimum number from which to search for UID # Note that the value will be dynamically overwritten if variable `rhel9cis_discover_int_uid` has # been set to `true`. min_int_uid: 1000 # This variable sets the maximum number at which the search stops for UID # Note that the value will be dynamically overwritten if variable `rhel9cis_discover_int_uid` has # been set to `true`. max_int_uid: 65533 ## Control 7.2.9 - Ensure local interactive user dot files access is configured # This variable is a toggle for enabling/disabling the automated modification of # permissions on dot files. # Possible values are `true` and `false` # This setting can impact a running system if not tested sufficiently rhel9cis_dotperm_ansiblemanaged: false