Premium module

cem_linux

Compliance Enforcement Module for Linux

Project URL RSS Feed Report issues

Module Stats

5,369 downloads

347 latest version

Version information

released Mar 9th 2023

This version is compatible with:

Puppet Enterprise 2023.2.x, 2023.1.x, 2023.0.x, 2021.7.x, 2021.6.x, 2021.5.x, 2021.4.x, 2021.3.x, 2021.2.x, 2021.1.x, 2021.0.x, 2019.8.x
Puppet >= 6.23.0 < 8.0.0
,

This module has been deprecated by its author since May 8th 2024.

The author has suggested puppetlabs-sce_linux as its replacement.

Tasks:

audit_authselect

query_yum_repos

root_path_integrity

audit_boot

audit_check_ipv6

audit_client_dns

audit_duplicate_gid

and 47 more. See all tasks

Tags: security, hardening, compliance, stig, cis, comply

Documentation

puppetlabs/cem_linux — version 1.5.2 Mar 9th 2023

`cem_linux`

Starting with CEM Linux v1.4.0, product documentation is available on the Puppet Docs website.

CEM Linux Reference

CIS CentOS Linux 7 Benchmark 3.1.2
CIS Red Hat Enterprise Linux 7 Benchmark 3.1.1
Red Hat Enterprise Linux 7 Security Technical Implementation Guide 3
CIS Red Hat Enterprise Linux 8 Benchmark 2.0.0
Red Hat Enterprise Linux 8 Security Technical Implementation Guide 1

CIS CentOS Linux 7 Benchmark 3.1.2

1.1.1.1 - Ensure mounting of cramfs filesystems is disabled

Parameters:
- filesystem - [ String[1] ] - Default: cramfs - Filesystem to disable, example xfs.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure mounting of cramfs filesystems is disabled":
      filesystem: "cramfs"

Alternate Config IDs:
- 1.1.1.1
- c1_1_1_1
- ensure_mounting_of_cramfs_filesystems_is_disabled
Resource: Cem_linux::Utils::Disable_fs_mounting['Disable cramfs filesystem mounting']

1.1.1.2 - Ensure mounting of squashfs filesystems is disabled

Parameters:
- filesystem - [ String[1] ] - Default: squashfs - Filesystem to disable, example xfs.
Supported Levels:
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure mounting of squashfs filesystems is disabled":
      filesystem: "squashfs"

Alternate Config IDs:
- 1.1.1.2
- c1_1_1_2
- ensure_mounting_of_squashfs_filesystems_is_disabled
Resource: Cem_linux::Utils::Disable_fs_mounting['Disable squashfs filesystem mounting']

1.1.1.3 - Ensure mounting of udf filesystems is disabled

Parameters:
- filesystem - [ String[1] ] - Default: udf - Filesystem to disable, example xfs.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure mounting of udf filesystems is disabled":
      filesystem: "udf"

Alternate Config IDs:
- 1.1.1.3
- c1_1_1_3
- ensure_mounting_of_udf_filesystems_is_disabled
Resource: Cem_linux::Utils::Disable_fs_mounting['Disable udf filesystem mounting']

1.1.3 - Ensure noexec option set on /tmp partition

Parameters:
- noexec - [ Optional[Boolean] ] - Default: true - Adds 'noexec' to the tmp.mount unit file options. Default: true
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure noexec option set on /tmp partition":
      noexec: true

Alternate Config IDs:
- 1.1.3
- c1_1_3
- ensure_noexec_option_set_on_tmp_partition
Resource: Class['cem_linux::utils::services::systemd::tmp_mount']

1.1.4 - Ensure nodev option set on /tmp partition

Parameters:
- nodev - [ Optional[Boolean] ] - Default: true - Adds 'nodev' to the tmp.mount unit file options.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure nodev option set on /tmp partition":
      nodev: true

Alternate Config IDs:
- 1.1.4
- c1_1_4
- ensure_nodev_option_set_on_tmp_partition
Resource: Class['cem_linux::utils::services::systemd::tmp_mount']

1.1.5 - Ensure nosuid option set on /tmp partition

Parameters:
- nosuid - [ Optional[Boolean] ] - Default: true - Adds 'nosuid' to the tmp.mount unit file options.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure nosuid option set on /tmp partition":
      nosuid: true

Alternate Config IDs:
- 1.1.5
- c1_1_5
- ensure_nosuid_option_set_on_tmp_partition
Resource: Class['cem_linux::utils::services::systemd::tmp_mount']

1.1.7 - Ensure noexec option set on /dev/shm partition

Parameters:
- noexec - [ Boolean ] - Default: true
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure noexec option set on /dev/shm partition":
      noexec: true

Alternate Config IDs:
- 1.1.7
- c1_1_7
- ensure_noexec_option_set_on_devshm_partition
Resource: Class['cem_linux::utils::dev_shm_fstab_entry']

1.1.8 - Ensure nodev option set on /dev/shm partition

Parameters:
- nodev - [ Boolean ] - Default: true
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure nodev option set on /dev/shm partition":
      nodev: true

Alternate Config IDs:
- 1.1.8
- c1_1_8
- ensure_nodev_option_set_on_devshm_partition
Resource: Class['cem_linux::utils::dev_shm_fstab_entry']

1.1.9 - Ensure nosuid option set on /dev/shm partition

Parameters:
- nosuid - [ Boolean ] - Default: true
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure nosuid option set on /dev/shm partition":
      nosuid: true

Alternate Config IDs:
- 1.1.9
- c1_1_9
- ensure_nosuid_option_set_on_devshm_partition
Resource: Class['cem_linux::utils::dev_shm_fstab_entry']

1.1.22 - Ensure sticky bit is set on all world-writable directories

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 1.1.22
- c1_1_22
- ensure_sticky_bit_is_set_on_all_world_writable_directories
Resource: Class['cem_linux::utils::sticky_bit']

1.1.23 - Disable Automounting

Parameters:
- service - [ String[1] ] - Default: autofs - Service to disable.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Disable Automounting":
      service: "autofs"

Alternate Config IDs:
- 1.1.23
- c1_1_23
- disable_automounting
Resource: Cem_linux::Utils::Disable_service['Disable autofs']

1.1.24 - Disable USB Storage

Parameters:
- filesystem - [ String[1] ] - Default: usb-storage - Filesystem to disable, example xfs.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Disable USB Storage":
      filesystem: "usb-storage"

Alternate Config IDs:
- 1.1.24
- c1_1_24
- disable_usb_storage
Resource: Cem_linux::Utils::Disable_fs_mounting['Disable usb storage']

1.2.3 - Ensure gpgcheck is globally activated

Parameters:
- yum_conf - [ Stdlib::UnixPath ] - Default: /etc/yum.conf - Full path to yum.conf file.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure gpgcheck is globally activated":
      yum_conf: "/etc/yum.conf"

Alternate Config IDs:
- 1.2.3
- c1_2_3
- ensure_gpgcheck_is_globally_activated
Resource: Class['cem_linux::utils::yum::enable_gpgcheck']

1.3.1 - Ensure AIDE is installed

Parameters:
- control_package - [ Optional[Boolean] ] - Default: true - Whether or not to ensure the package is installed. Default: true
- package_ensure - [ Optional[String] ] - Default: present - Passed directly to the package resource for aide. Default: installed
- manage_config - [ Optional[Boolean] ] - Default: true - Whether or not to manage /etc/aide.conf. Default: true
- run_scheduled - [ Optional[Boolean] ] - Default: true - Whether or not to set AIDE to run on a schedule. Default: true
- scheduler - [ Optional[Enum[\systemd\, \cron\]] ] - Default: systemd - Whether to use a systemd timer or cron job to schedule AIDE scans. Default: systemd
- systemd_timer_schedule - [ Optional[String] ] - Default: *-*-* 00:00:00 - Used as the systemd timer unit file's OnSchedule directive. Default: '--* 00:00:00'
- conf_purge - [ Optional[Boolean] ] - Default: undef - Setting purge to true means that no default values will be used. WARNING: You MUST configure ALL CONFIG OPTIONS when using purge to ensure that AIDE can function. Default: false
- conf_db_dir - [ Optional[String] ] - Default: /var/lib/aide - The directory AIDE will use to store the DB. Default: /var/lib/aide
- conf_log_dir - [ Optional[String] ] - Default: /var/log/aide - The directory AIDE will use to store the log file. Default: /var/log/aide
- conf_verbosity - [ Optional[Integer] ] - Default: 5 - How verbose AIDE is in logging. Default: 5
- conf_report_urls - [ Optional[Array[String]] ] - Default: ["file:@@{LOGDIR}/aide.log", "stdout"] - Where AIDE should send check results. Default: [ 'file:@@{LOGDIR}/aide.log', 'stdout' ]
- conf_rules - [ Optional[Array[String]] ] - Default: ["PERMS = p+u+g+acl+xattrs", "CONTENT_EX = sha256+ftype+p+u+g+n+acl+xattrs"] - Custom rule definitions for the AIDE config file. Each item is passed into the config as is, so rule definitions should look like: "PERMS = p+u+g+acl+selinux+xattrs". See docs for defaults.
- conf_checks - [ Optional[Array[String]] ] - Default: ["/boot/ CONTENT_EX", "/bin/ CONTENT_EX", "/sbin/ CONTENT_EX", "/lib/ CONTENT_EX", "/lib64/ CONTENT_EX", "/opt/ CONTENT_EX", "/root/\\..* PERMS", "/root/ CONTENT_EX", "!/usr/src/", "!/usr/tmp/", "/usr/ CONTENT_EX", "!/etc/mtab$", "!/etc/.*null", "/etc/hosts$ CONTENT_EX", "/etc/passwd$ CONTENT_EX", "/etc/group$ CONTENT_EX", "/etc/gshadow$ CONTENT_EX", "/etc/shadow$ CONTENT_EX", "/etc/resolv.conf$ CONTENT_EX", "/etc/login.defs$ CONTENT_EX", "/etc/libuser.conf$ CONTENT_EX", "/var/log/faillog$ PERMS", "/var/log/lastlog$ PERMS", "/var/run/faillock/ PERMS", "/etc/pam.d/ CONTENT_EX", "/etc/security$ CONTENT_EX", "/etc/securetty$ CONTENT_EX", "/etc/polkit-1/ CONTENT_EX", "/etc/sudo.conf$ CONTENT_EX", "/etc/sudoers$ CONTENT_EX", "/etc/sudoers.d/ CONTENT_EX", "!/var/log/sa/", "!/var/log/aide.log", "/etc/ PERMS", "!/var/log/httpd/", "!/opt/puppetlabs/puppet/cache/", "!/opt/puppetlabs/puppet/public/last_run_summary.yaml"] - Directory and file checks. As AIDE parses these from top to bottom in the config file, the way you order this array matters. Individual file checks should come before their parent directory checks. Each check is passed into the config as is, so checks should look like: "/boot/ CONTENT_EX". See docs for defaults. If you choose not to use the default values, it is HIGHLY RECOMMENDED that you ignore the directory /opt/puppetlabs/puppet/cache/ and ignore the file /opt/puppetlabs/puppet/public/last_run_summary.yaml as these change every Puppet run.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure AIDE is installed":
      control_package: true
      package_ensure: "present"
      manage_config: true
      run_scheduled: true
      scheduler: "systemd"
      systemd_timer_schedule: "*-*-* 00:00:00"
      conf_purge: <<Type Boolean>>
      conf_db_dir: "/var/lib/aide"
      conf_log_dir: "/var/log/aide"
      conf_verbosity: 5
      conf_report_urls: ["file:@@{LOGDIR}/aide.log", "stdout"]
      conf_rules: ["PERMS = p+u+g+acl+xattrs", "CONTENT_EX = sha256+ftype+p+u+g+n+acl+xattrs"]
      conf_checks: ["/boot/   CONTENT_EX", "/bin/    CONTENT_EX", "/sbin/   CONTENT_EX", "/lib/    CONTENT_EX", "/lib64/  CONTENT_EX", "/opt/    CONTENT_EX", "/root/\\..* PERMS", "/root/   CONTENT_EX", "!/usr/src/", "!/usr/tmp/", "/usr/    CONTENT_EX", "!/etc/mtab$", "!/etc/.*null", "/etc/hosts$ CONTENT_EX", "/etc/passwd$   CONTENT_EX", "/etc/group$    CONTENT_EX", "/etc/gshadow$  CONTENT_EX", "/etc/shadow$   CONTENT_EX", "/etc/resolv.conf$ CONTENT_EX", "/etc/login.defs$ CONTENT_EX", "/etc/libuser.conf$ CONTENT_EX", "/var/log/faillog$ PERMS", "/var/log/lastlog$ PERMS", "/var/run/faillock/ PERMS", "/etc/pam.d/ CONTENT_EX", "/etc/security$ CONTENT_EX", "/etc/securetty$ CONTENT_EX", "/etc/polkit-1/ CONTENT_EX", "/etc/sudo.conf$ CONTENT_EX", "/etc/sudoers$ CONTENT_EX", "/etc/sudoers.d/ CONTENT_EX", "!/var/log/sa/", "!/var/log/aide.log", "/etc/    PERMS", "!/var/log/httpd/", "!/opt/puppetlabs/puppet/cache/", "!/opt/puppetlabs/puppet/public/last_run_summary.yaml"]

Alternate Config IDs:
- 1.3.1
- c1_3_1
- ensure_aide_is_installed
Resource: Class['cem_linux::utils::packages::linux::aide']

1.4.1 - Ensure bootloader password is set

Parameters:
- password_protect - [ Boolean ] - Default: true - Whether or not to password protect the bootloader.
- superuser - [ Optional[String[1]] ] - Default: undef - The username of the grub2 superuser. This is used to set a superuser password in the bootloader configuration. This is only used if password_protect is true.
- superuser_password - [ Optional[Sensitive[String]] ] - Default: undef - The password of the grub2 superuser. This will be the superuser password in the bootloader configuration. This is only used if password_protect is true.
- password_file - [ Stdlib::UnixPath ] - Default: /etc/grub.d/50_password - The path to the file containing the bootloader password(s). This is only used if password_protect is true.
- replace_password_file - [ Boolean ] - If true, replaces the password file if it exists with a NEW hash of the password. Also, when set to true, this resource is NOT idempotent. When set to false, this prevent accidental overwriting of the password file with a new hash of the same password.
- hash_superuser_password - [ Boolean ] - Default: true - If true, the superuser password will be hashed using PBKDF2-HMAC-SHA512. If false, the superuser password will be stored in the password file as-is. This is only used if password_protect is true.
- superuser_password_salt_length - [ Optional[Integer] ] - Default: undef - The length of the salt in bits used to hash the superuser password. Default is 128. This is optional and only used if password_protect and hash_superuser_password are true.
- superuser_password_buffer_length - [ Optional[Integer] ] - Default: undef - The length of the resulting hash. Default is 128. This is optional and only used if password_protect and hash_superuser_password are true.
- superuser_password_iterations - [ Optional[Integer] ] - Default: undef - The number of times the password is passed through the hash function. Default is 120000. This is optional and only used if password_protect and hash_superuser_password are true.
- other_users - [ Optional[Array[Struct[{username=>String[1], password=>Sensitive[String], salt_length=>Optional[String], buffer_length=>Optional[Integer], iterations=>Optional[Integer]}]]] ] - Default: undef - An array of structured hashes to add other users besides the superuser to the password file. This is optional only used if password_protect is true. The users specified here will be added to the password file as regular users, not superusers. Other user passwords will be hashed using PBKDF2-HMAC-SHA512, just like the superuser password, if hash_other_user_passwords is true.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure bootloader password is set":
      password_protect: true
      superuser: <<Type String[1]>>
      superuser_password: <<Type Sensitive[String]>>
      password_file: "/etc/grub.d/50_password"
      replace_password_file: false
      hash_superuser_password: true
      superuser_password_salt_length: <<Type Integer>>
      superuser_password_buffer_length: <<Type Integer>>
      superuser_password_iterations: <<Type Integer>>
      other_users: <<Type Array[Struct[{username=>String[1], password=>Sensitive[String], salt_length=>Optional[String], buffer_length=>Optional[Integer], iterations=>Optional[Integer]}]]>>

Alternate Config IDs:
- 1.4.1
- c1_4_1
- ensure_bootloader_password_is_set
Resource: Class['cem_linux::utils::bootloader::grub2']

1.4.2 - Ensure permissions on bootloader config are configured

Parameters:
- ensure_permissions - [ Boolean ] - Default: true - Whether or not to enforce correct permissions on the bootloader files.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure permissions on bootloader config are configured":
      ensure_permissions: true

Alternate Config IDs:
- 1.4.2
- c1_4_2
- ensure_permissions_on_bootloader_config_are_configured
Resource: Class['cem_linux::utils::bootloader::grub2']

1.4.3 - Ensure authentication required for single user mode

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 1.4.3
- c1_4_3
- ensure_authentication_required_for_single_user_mode
Resource: Class['cem_linux::utils::single_user_mode_authentication']

1.5.1 - Ensure core dumps are restricted

Parameters:
- limits_file - [ Optional[String] ] - Default: 10-disable_core_dumps.conf
- sysctl_file - [ Optional[String] ] - Default: 10-disable_core_dumps.conf
- service_content - [ Optional[String] ] - Default: # THIS FILE IS MANAGED BY PUPPET [Coredump] Storage=none ProcessSizeMax=0
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure core dumps are restricted":
      limits_file: "10-disable_core_dumps.conf"
      sysctl_file: "10-disable_core_dumps.conf"
      service_content: "# THIS FILE IS MANAGED BY PUPPET\n[Coredump]\nStorage=none\nProcessSizeMax=0\n"

Alternate Config IDs:
- 1.5.1
- c1_5_1
- ensure_core_dumps_are_restricted
Resource: Class['cem_linux::utils::disable_core_dumps']

1.5.3 - Ensure address space layout randomization (ASLR) is enabled

Parameters:
- sysctl_file - [ Optional[String] ] - Default: 10-enable_aslr.conf - The filename of the file created at /etc/sysctl.d/. Default:'10-enable_aslr.conf'
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure address space layout randomization (ASLR) is enabled":
      sysctl_file: "10-enable_aslr.conf"

Alternate Config IDs:
- 1.5.3
- c1_5_3
- ensure_address_space_layout_randomization_aslr_is_enabled
Resource: Class['cem_linux::utils::enable_aslr']

1.5.4 - Ensure prelink is not installed

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 1.5.4
- c1_5_4
- ensure_prelink_is_not_installed
Resource: Class['cem_linux::utils::disable_prelink']

1.6.1.1 - Ensure SELinux is installed

Parameters:
- manage_package - [ Optional[Boolean] ] - Default: true - Enable or disable selinux package management.
- package_name - [ Optional[String[1]] ] - Default: libselinux - Name of package.
- mode - [ Optional[Enum[\permissive\, \enforcing\]] ] - Default: enforcing - Selinux mode, permissive or enforcing. Disabled is not supported.
- type - [ Optional[Enum[\targeted\, \mls\]] ] - Default: targeted - SELinux enforcement type.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure SELinux is installed":
      manage_package: true
      package_name: "libselinux"
      mode: "enforcing"
      type: "targeted"

Alternate Config IDs:
- 1.6.1.1
- c1_6_1_1
- ensure_selinux_is_installed
Resource: Class['cem_linux::utils::packages::linux::selinux']

1.6.1.2 - Ensure SELinux is not disabled in bootloader configuration

Parameters:
- enable_selinux - [ Boolean ] - Default: true - Whether or not to enable SELinux in the bootloader boot command.
- selinux_mode - [ Enum["permissive", "enforcing", "disabled"] ] - Default: enforcing
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure SELinux is not disabled in bootloader configuration":
      enable_selinux: true
      selinux_mode: "enforcing"

Alternate Config IDs:
- 1.6.1.2
- c1_6_1_2
- ensure_selinux_is_not_disabled_in_bootloader_configuration
Resource: Class['cem_linux::utils::bootloader::grub2']

1.6.1.3 - Ensure SELinux policy is configured

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 1.6.1.3
- c1_6_1_3
- ensure_selinux_policy_is_configured
Resource: Class['cem_linux::utils::packages::linux::selinux']

1.6.1.4 - Ensure the SELinux mode is enforcing or permissive

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 1.6.1.4
- c1_6_1_4
- ensure_the_selinux_mode_is_enforcing_or_permissive
Resource: Class['cem_linux::utils::packages::linux::selinux']

1.6.1.5 - Ensure the SELinux mode is enforcing

Parameters:
- No parameters
Supported Levels:
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 1.6.1.5
- c1_6_1_5
- ensure_the_selinux_mode_is_enforcing
Resource: Class['cem_linux::utils::packages::linux::selinux']

1.6.1.7 - Ensure SETroubleshoot is not installed

Parameters:
- pkg_name - [ String[1] ] - Default: setroubleshoot - Name of package to remove.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure SETroubleshoot is not installed":
      pkg_name: "setroubleshoot"

Alternate Config IDs:
- 1.6.1.7
- c1_6_1_7
- ensure_setroubleshoot_is_not_installed
Resource: Cem_linux::Utils::Packages::Absenter['Do not install setroubleshoot']

1.6.1.8 - Ensure the MCS Translation Service (mcstrans) is not installed

Parameters:
- pkg_name - [ String[1] ] - Default: mcstrans - Name of package to remove.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure the MCS Translation Service (mcstrans) is not installed":
      pkg_name: "mcstrans"

Alternate Config IDs:
- 1.6.1.8
- c1_6_1_8
- ensure_the_mcs_translation_service_mcstrans_is_not_installed
Resource: Cem_linux::Utils::Packages::Absenter['Do not install mcs translation service']

1.7.1 - Ensure message of the day is configured properly

Parameters:
- dynamic_motd - [ Optional[Boolean] ] - Default: true - Enables or disables dynamic motd on Debian systems. Default true
- motd_template - [ Optional[String[1]] ] - Default: undef - Specifies a custom motd template or text file. A template takes precedence over content. Valid options: '/mymodule/mytemplate.epp'.
- motd_content - [ Optional[String] ] - Default: `` - Specifies a static string as the motd content. Default "This is a secure system. Unauthorized access is strictly prohibited.\r\n"
- issue_content - [ Optional[String] ] - Default: This is a secure system. Unauthorized access is strictly prohibited. - Specifies a static string as the /etc/issue content. Default "This is a secure system. Unauthorized access is strictly prohibited.\r\n"
- issue_net_content - [ Optional[String] ] - Default: This is a secure system. Unauthorized access is strictly prohibited.
- issue_template - [ Optional[String[1]] ] - Default: undef - Specifies a custom template or text file to process and save to /etc/issue. A template takes precedence over issue_content.
- issue_net_template - [ Optional[String[1]] ] - Default: undef - Specifies a custom template or text file to process and save to /etc/issue.net. A template takes precedence over issue_net_content.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure message of the day is configured properly":
      dynamic_motd: true
      motd_template: <<Type String[1]>>
      motd_content: ""
      issue_content: "This is a secure system. Unauthorized access is strictly prohibited.\r\n"
      issue_net_content: "This is a secure system. Unauthorized access is strictly prohibited.\r\n"
      issue_template: <<Type String[1]>>
      issue_net_template: <<Type String[1]>>

Alternate Config IDs:
- 1.7.1
- c1_7_1
- ensure_message_of_the_day_is_configured_properly
Resource: Class['cem_linux::utils::motd']

1.7.2 - Ensure local login warning banner is configured properly

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 1.7.2
- c1_7_2
- ensure_local_login_warning_banner_is_configured_properly
Resource: Class['cem_linux::utils::motd']

1.7.3 - Ensure remote login warning banner is configured properly

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 1.7.3
- c1_7_3
- ensure_remote_login_warning_banner_is_configured_properly
Resource: Class['cem_linux::utils::motd']

1.7.4 - Ensure permissions on /etc/motd are configured

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 1.7.4
- c1_7_4
- ensure_permissions_on_etcmotd_are_configured
Resource: Class['cem_linux::utils::motd']

1.7.5 - Ensure permissions on /etc/issue are configured

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 1.7.5
- c1_7_5
- ensure_permissions_on_etcissue_are_configured
Resource: Class['cem_linux::utils::motd']

1.7.6 - Ensure permissions on /etc/issue.net are configured

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 1.7.6
- c1_7_6
- ensure_permissions_on_etcissue_net_are_configured
Resource: Class['cem_linux::utils::motd']

2.1.1 - Ensure xinetd is not installed

Parameters:
- pkg_name - [ String[1] ] - Default: xinetd - Name of package to remove.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure xinetd is not installed":
      pkg_name: "xinetd"

Alternate Config IDs:
- 2.1.1
- c2_1_1
- ensure_xinetd_is_not_installed
Resource: Cem_linux::Utils::Packages::Absenter['Do not install xinetd']

2.2.1.1 - Ensure time synchronization is in use

Parameters:
- preferred_package - [ Enum["chrony", "ntp"] ] - Default: chrony - The preferred package to use for time synchronization. Defaults to chrony.
- manage_package - [ Boolean ] - Default: true - If true, the package will be installed and managed by Puppet. Defaults to true.
- force_exclusivity - [ Boolean ] - Default: true - If true, the package that was not chosen will be removed from the system. This means that if your preferred package is chrony, ntp will be removed.
- timeservers - [ Optional[Array[String[1]]] ] - Default: undef - Array of strings starting with the type (pool, server, etc.), then hostname / ip, then any options. Each element of the timeservers array will be added to the chrony / ntp config file as is. Please see man chrony.conf(5) or man ntp.conf(5) for more details. Example: ['server 192.168.0.250 prefer iburst', 'server 192.168.0.251 iburst']
- sysconfig_options - [ Optional[String[1]] ] - Default: undef - Options to be added to the sysconfig file for the chosen package. This defaults to -u chrony for the chrony package and -u ntp:ntp for the ntp package.
- ntp_restricts - [ Optional[Array[String[1]]] ] - Default: ["-4 default kod nomodify notrap nopeer noquery", "-6 default kod nomodify notrap nopeer noquery"] - Array of strings used to create restrict lines in the ntp config file. Defaults to `['-4 default kod nomodify notrap nopeer noquery', '-6 default kod nomodify notrap nopeer noquery']
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure time synchronization is in use":
      preferred_package: "chrony"
      manage_package: true
      force_exclusivity: true
      timeservers: <<Type Array[String[1]]>>
      sysconfig_options: <<Type String[1]>>
      ntp_restricts: ["-4 default kod nomodify notrap nopeer noquery", "-6 default kod nomodify notrap nopeer noquery"]

Alternate Config IDs:
- 2.2.1.1
- c2_2_1_1
- ensure_time_synchronization_is_in_use
Resource: Class['cem_linux::utils::timesync']

2.2.1.2 - Ensure chrony is configured

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 2.2.1.2
- c2_2_1_2
- ensure_chrony_is_configured
Resource: Class['cem_linux::utils::timesync']

2.2.1.3 - Ensure ntp is configured

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 2.2.1.3
- c2_2_1_3
- ensure_ntp_is_configured
Resource: Class['cem_linux::utils::timesync']

2.2.2 - Ensure X11 Server components are not installed

Parameters:
- pkg_name - [ String[1] ] - Default: xorg-x11-server* - Name of package to remove.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure X11 Server components are not installed":
      pkg_name: "xorg-x11-server*"

Alternate Config IDs:
- 2.2.2
- c2_2_2
- ensure_x11_server_components_are_not_installed
Resource: Cem_linux::Utils::Packages::Absenter['Do not install x11 server components']

2.2.3 - Ensure Avahi Server is not installed

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 2.2.3
- c2_2_3
- ensure_avahi_server_is_not_installed
Resource: Class['cem_linux::utils::remove_avahi_server']

2.2.4 - Ensure CUPS is not installed

Parameters:
- pkg_name - [ String[1] ] - Default: cups - Name of package to remove.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure CUPS is not installed":
      pkg_name: "cups"

Alternate Config IDs:
- 2.2.4
- c2_2_4
- ensure_cups_is_not_installed
Resource: Cem_linux::Utils::Packages::Absenter['Do not install CUPS']

2.2.5 - Ensure DHCP Server is not installed

Parameters:
- pkg_name - [ String[1] ] - Default: dhcp - Name of package to remove.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure DHCP Server is not installed":
      pkg_name: "dhcp"

Alternate Config IDs:
- 2.2.5
- c2_2_5
- ensure_dhcp_server_is_not_installed
Resource: Cem_linux::Utils::Packages::Absenter['Do not use DHCP server']

2.2.6 - Ensure LDAP server is not installed

Parameters:
- pkg_name - [ String[1] ] - Default: openldap-servers - Name of package to remove.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure LDAP server is not installed":
      pkg_name: "openldap-servers"

Alternate Config IDs:
- 2.2.6
- c2_2_6
- ensure_ldap_server_is_not_installed
Resource: Cem_linux::Utils::Packages::Absenter['Do not LDAP server']

2.2.7 - Ensure DNS Server is not installed

Parameters:
- pkg_name - [ String[1] ] - Default: bind - Name of package to remove.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure DNS Server is not installed":
      pkg_name: "bind"

Alternate Config IDs:
- 2.2.7
- c2_2_7
- ensure_dns_server_is_not_installed
Resource: Cem_linux::Utils::Packages::Absenter['Do not use DNS server']

2.2.8 - Ensure FTP Server is not installed

Parameters:
- pkg_name - [ String[1] ] - Default: vsftpd - Name of package to remove.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure FTP Server is not installed":
      pkg_name: "vsftpd"

Alternate Config IDs:
- 2.2.8
- c2_2_8
- ensure_ftp_server_is_not_installed
Resource: Cem_linux::Utils::Packages::Absenter['Do not use ftp server']

2.2.9 - Ensure HTTP server is not installed

Parameters:
- pkg_name - [ String[1] ] - Default: httpd - Name of package to remove.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure HTTP server is not installed":
      pkg_name: "httpd"

Alternate Config IDs:
- 2.2.9
- c2_2_9
- ensure_http_server_is_not_installed
Resource: Cem_linux::Utils::Packages::Absenter['Do not use HTTP Server']

2.2.10 - Ensure IMAP and POP3 server is not installed

Parameters:
- mail_servers - [ Array[String] ] - Default: ["dovecot", "postfix"]
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure IMAP and POP3 server is not installed":
      mail_servers: ["dovecot", "postfix"]

Alternate Config IDs:
- 2.2.10
- c2_2_10
- ensure_imap_and_pop3_server_is_not_installed
Resource: Class['cem_linux::utils::remove_imap_and_pop3']

2.2.11 - Ensure Samba is not installed

Parameters:
- pkg_name - [ String[1] ] - Default: samba - Name of package to remove.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure Samba is not installed":
      pkg_name: "samba"

Alternate Config IDs:
- 2.2.11
- c2_2_11
- ensure_samba_is_not_installed
Resource: Cem_linux::Utils::Packages::Absenter['Do not use Samba']

2.2.12 - Ensure HTTP Proxy Server is not installed

Parameters:
- proxy_packages - [ Array[String] ] - Default: ["squid"]
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure HTTP Proxy Server is not installed":
      proxy_packages: ["squid"]

Alternate Config IDs:
- 2.2.12
- c2_2_12
- ensure_http_proxy_server_is_not_installed
Resource: Class['cem_linux::utils::remove_http_proxy']

2.2.13 - Ensure net-snmp is not installed

Parameters:
- pkg_name - [ String[1] ] - Default: net-snmp - Name of package to remove.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure net-snmp is not installed":
      pkg_name: "net-snmp"

Alternate Config IDs:
- 2.2.13
- c2_2_13
- ensure_net_snmp_is_not_installed
Resource: Cem_linux::Utils::Packages::Absenter['Do not use net-snmp']

2.2.14 - Ensure NIS server is not installed

Parameters:
- pkg_name - [ String[1] ] - Default: ypserv - Name of package to remove.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure NIS server is not installed":
      pkg_name: "ypserv"

Alternate Config IDs:
- 2.2.14
- c2_2_14
- ensure_nis_server_is_not_installed
Resource: Cem_linux::Utils::Packages::Absenter['Disable NIS Server']

2.2.15 - Ensure telnet-server is not installed

Parameters:
- pkg_name - [ String[1] ] - Default: telnet-server - Name of package to remove.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure telnet-server is not installed":
      pkg_name: "telnet-server"

Alternate Config IDs:
- 2.2.15
- c2_2_15
- ensure_telnet_server_is_not_installed
Resource: Cem_linux::Utils::Packages::Absenter['Remove Telnet server']

2.2.16 - Ensure mail transfer agent is configured for local-only mode

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 2.2.16
- c2_2_16
- ensure_mail_transfer_agent_is_configured_for_local_only_mode
Resource: Class['cem_linux::utils::local_only_mta']

2.2.17 - Ensure nfs-utils is not installed or the nfs-server service is masked

Parameters:
- keep_nfsutils - [ Boolean ]
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure nfs-utils is not installed or the  nfs-server service is masked":
      keep_nfsutils: false

Alternate Config IDs:
- 2.2.17
- c2_2_17
- ensure_nfs_utils_is_not_installed_or_the__nfs_server_service_is_masked
Resource: Class['cem_linux::utils::disable_or_remove_nfs']

2.2.18 - Ensure rpcbind is not installed or the rpcbind services are masked

Parameters:
- keep_rpcbind - [ Boolean ]
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure rpcbind is not installed or the  rpcbind services are masked":
      keep_rpcbind: false

Alternate Config IDs:
- 2.2.18
- c2_2_18
- ensure_rpcbind_is_not_installed_or_the__rpcbind_services_are_masked
Resource: Class['cem_linux::utils::disable_or_remove_rpcbind']

2.2.19 - Ensure rsync is not installed or the rsyncd service is masked

Parameters:
- keep_rsync - [ Boolean ]
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure rsync is not installed or the rsyncd service is masked":
      keep_rsync: false

Alternate Config IDs:
- 2.2.19
- c2_2_19
- ensure_rsync_is_not_installed_or_the_rsyncd_service_is_masked
Resource: Class['cem_linux::utils::disable_or_remove_rsync']

2.3.1 - Ensure NIS Client is not installed

Parameters:
- pkg_name - [ String[1] ] - Default: ypbind - Name of package to remove.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure NIS Client is not installed":
      pkg_name: "ypbind"

Alternate Config IDs:
- 2.3.1
- c2_3_1
- ensure_nis_client_is_not_installed
Resource: Cem_linux::Utils::Packages::Absenter['Do not use NIS Client']

2.3.2 - Ensure rsh client is not installed

Parameters:
- pkg_name - [ String[1] ] - Default: rsh - Name of package to remove.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure rsh client is not installed":
      pkg_name: "rsh"

Alternate Config IDs:
- 2.3.2
- c2_3_2
- ensure_rsh_client_is_not_installed
Resource: Cem_linux::Utils::Packages::Absenter['Do not use rsh']

2.3.3 - Ensure talk client is not installed

Parameters:
- pkg_name - [ String[1] ] - Default: talk - Name of package to remove.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure talk client is not installed":
      pkg_name: "talk"

Alternate Config IDs:
- 2.3.3
- c2_3_3
- ensure_talk_client_is_not_installed
Resource: Cem_linux::Utils::Packages::Absenter['Do not use talk client']

2.3.4 - Ensure telnet client is not installed

Parameters:
- pkg_name - [ String[1] ] - Default: telnet - Name of package to remove.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure telnet client is not installed":
      pkg_name: "telnet"

Alternate Config IDs:
- 2.3.4
- c2_3_4
- ensure_telnet_client_is_not_installed
Resource: Cem_linux::Utils::Packages::Absenter['Remove Telnet Client']

2.3.5 - Ensure LDAP client is not installed

Parameters:
- pkg_name - [ String[1] ] - Default: openldap-clients - Name of package to remove.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure LDAP client is not installed":
      pkg_name: "openldap-clients"

Alternate Config IDs:
- 2.3.5
- c2_3_5
- ensure_ldap_client_is_not_installed
Resource: Cem_linux::Utils::Packages::Absenter['Remove LDAP Client']

3.1.1 - Disable IPv6

Parameters:
- strategy - [ Optional[Enum[\sysctl\, \grub\]] ] - Default: sysctl - Whether to disable IPv6 with sysctl or in the grub config Default: sysctl
- create_sysctl_file - [ Optional[Boolean] ] - Default: true - Whether to create a new sysctl file or to use the default config file Default: true
- sysctl_conf - [ Optional[String] ] - Default: /etc/sysctl.conf - Path to sysctl.conf. Default: /etc/sysctl.conf
- sysctl_d_path - [ Optional[String] ] - Default: /etc/sysctl.d - Path to sysctl.d. Default: /etc/sysctl.d
- sysctl_prefix - [ Optional[String] ] - Default: 10- - A prefix to add to the created file name. Default: 10-
- sysctl_comment - [ Optional[String] ] - Default: MANAGED BY PUPPET - A comment to add to the created file. Default: MANAGED BY PUPPET
Supported Levels:
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Disable IPv6":
      strategy: "sysctl"
      create_sysctl_file: true
      sysctl_conf: "/etc/sysctl.conf"
      sysctl_d_path: "/etc/sysctl.d"
      sysctl_prefix: "10-"
      sysctl_comment: "MANAGED BY PUPPET"

Alternate Config IDs:
- 3.1.1
- c3_1_1
- disable_ipv6
Resource: Class['cem_linux::utils::network::disable_ipv6']

3.1.2 - Ensure wireless interfaces are disabled

Parameters:
- wwan - [ Boolean ] - Default: true - Whether to disable wwan Default: false
- wifi - [ Boolean ] - Default: true - Whether to disable wifi Default: false
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure wireless interfaces are disabled":
      wwan: true
      wifi: true

Alternate Config IDs:
- 3.1.2
- c3_1_2
- ensure_wireless_interfaces_are_disabled
Resource: Cem_linux::Utils::Network::Disable_wireless_interfaces['Disable wireless interfaces']

3.2.1 - Ensure IP forwarding is disabled

Parameters:
- target - [ Optional[String[1]] ] - Default: /etc/sysctl.d/10-disable_ip_forwarding.conf - The sysctl file that values will be written to. Default: /etc/sysctl.d/10-disable_ip_forwarding.conf
- persist - [ Optional[Boolean] ] - Default: true - If set to false, no values will be persisted to disk. Setting this to false will cause $target and $comment to be ignored. Default: true
- comment - [ Optional[String] ] - Default: MANAGED BY PUPPET - A comment to add to add to each setting. Default: MANAGED BY PUPPET
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure IP forwarding is disabled":
      target: "/etc/sysctl.d/10-disable_ip_forwarding.conf"
      persist: true
      comment: "MANAGED BY PUPPET"

Alternate Config IDs:
- 3.2.1
- c3_2_1
- ensure_ip_forwarding_is_disabled
Resource: Class['cem_linux::utils::network::disable_ip_forwarding']

3.2.2 - Ensure packet redirect sending is disabled

Parameters:
- target - [ Optional[String[1]] ] - Default: /etc/sysctl.d/10-disable_packet_redirect_sending.conf - The sysctl file that values will be written to. Default: /etc/sysctl.d/10-disable_packet_redirect_sending.conf
- persist - [ Optional[Boolean] ] - Default: true - If set to false, no values will be persisted to disk. Setting this to false will cause $target and $comment to be ignored. Default: true
- comment - [ Optional[String] ] - Default: MANAGED BY PUPPET - A comment to add to add to each setting. Default: MANAGED BY PUPPET
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure packet redirect sending is disabled":
      target: "/etc/sysctl.d/10-disable_packet_redirect_sending.conf"
      persist: true
      comment: "MANAGED BY PUPPET"

Alternate Config IDs:
- 3.2.2
- c3_2_2
- ensure_packet_redirect_sending_is_disabled
Resource: Class['cem_linux::utils::network::disable_packet_redirect_sending']

3.3.1 - Ensure source routed packets are not accepted

Parameters:
- target - [ Optional[String[1]] ] - Default: /etc/sysctl.d/10-disable_source_routes.conf - The sysctl file that values will be written to. Default: /etc/sysctl.d/10-disable_source_routes.conf
- persist - [ Optional[Boolean] ] - Default: true - If set to false, no values will be persisted to disk. Setting this to false will cause $target and $comment to be ignored. Default: true
- comment - [ Optional[String] ] - Default: MANAGED BY PUPPET - A comment to add to add to each setting. Default: MANAGED BY PUPPET
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure source routed packets are not accepted":
      target: "/etc/sysctl.d/10-disable_source_routes.conf"
      persist: true
      comment: "MANAGED BY PUPPET"

Alternate Config IDs:
- 3.3.1
- c3_3_1
- ensure_source_routed_packets_are_not_accepted
Resource: Class['cem_linux::utils::network::disable_source_routes']

3.3.2 - Ensure ICMP redirects are not accepted

Parameters:
- disable_ipv4_accept_default - [ Boolean ] - Default: true - Disable accepting IPv4 ICMP redirects on default route
- disable_ipv4_accept_all - [ Boolean ] - Default: true - Disable accepting IPv4 ICMP redirects on all routes
- disable_ipv6_accept_default - [ Boolean ] - Default: true - Disable accepting IPv6 ICMP redirects on default route
- disable_ipv6_accept_all - [ Boolean ] - Default: true - Disable accepting IPv6 ICMP redirects on all routes
- target - [ Stdlib::UnixPath ] - Default: /etc/sysctl.d/10-disable_icmp_redirects.conf - The sysctl file that values will be written to.
- persist - [ Boolean ] - Default: true - If set to false, no values will be persisted to disk. Setting this to false will cause $target and $comment to be ignored.
- comment - [ String ] - Default: MANAGED BY PUPPET - A comment to add to add to each setting.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure ICMP redirects are not accepted":
      disable_ipv4_accept_default: true
      disable_ipv4_accept_all: true
      disable_ipv6_accept_default: true
      disable_ipv6_accept_all: true
      target: "/etc/sysctl.d/10-disable_icmp_redirects.conf"
      persist: true
      comment: "MANAGED BY PUPPET"

Alternate Config IDs:
- 3.3.2
- c3_3_2
- ensure_icmp_redirects_are_not_accepted
Resource: Class['cem_linux::utils::network::disable_icmp_redirects']

3.3.3 - Ensure secure ICMP redirects are not accepted

Parameters:
- target - [ Optional[String[1]] ] - Default: /etc/sysctl.d/10-disable_secure_icmp_redirects.conf - The sysctl file that values will be written to. Default: /etc/sysctl.d/10-disable_secure_icmp_redirects.conf
- persist - [ Optional[Boolean] ] - Default: true - If set to false, no values will be persisted to disk. Setting this to false will cause $target and $comment to be ignored. Default: true
- comment - [ Optional[String] ] - Default: MANAGED BY PUPPET - A comment to add to add to each setting. Default: MANAGED BY PUPPET
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure secure ICMP redirects are not accepted":
      target: "/etc/sysctl.d/10-disable_secure_icmp_redirects.conf"
      persist: true
      comment: "MANAGED BY PUPPET"

Alternate Config IDs:
- 3.3.3
- c3_3_3
- ensure_secure_icmp_redirects_are_not_accepted
Resource: Class['cem_linux::utils::network::disable_secure_icmp_redirects']

3.3.4 - Ensure suspicious packets are logged

Parameters:
- target - [ Optional[String[1]] ] - Default: /etc/sysctl.d/10-enable_log_martians.conf - The sysctl file that values will be written to. Default: /etc/sysctl.d/10-enable_log_martians.conf
- persist - [ Optional[Boolean] ] - Default: true - If set to false, no values will be persisted to disk. Setting this to false will cause $target and $comment to be ignored. Default: true
- comment - [ Optional[String] ] - Default: MANAGED BY PUPPET - A comment to add to add to each setting. Default: MANAGED BY PUPPET
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure suspicious packets are logged":
      target: "/etc/sysctl.d/10-enable_log_martians.conf"
      persist: true
      comment: "MANAGED BY PUPPET"

Alternate Config IDs:
- 3.3.4
- c3_3_4
- ensure_suspicious_packets_are_logged
Resource: Class['cem_linux::utils::network::enable_log_martians']

3.3.5 - Ensure broadcast ICMP requests are ignored

Parameters:
- target - [ Optional[String[1]] ] - Default: /etc/sysctl.d/10-ignore_icmp_broadcast.conf - The sysctl file that values will be written to. Default: /etc/sysctl.d/10-ignore_icmp_broadcast.conf
- persist - [ Optional[Boolean] ] - Default: true - If set to false, no values will be persisted to disk. Setting this to false will cause $target and $comment to be ignored. Default: true
- comment - [ Optional[String] ] - Default: MANAGED BY PUPPET - A comment to add to add to each setting. Default: MANAGED BY PUPPET
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure broadcast ICMP requests are ignored":
      target: "/etc/sysctl.d/10-ignore_icmp_broadcast.conf"
      persist: true
      comment: "MANAGED BY PUPPET"

Alternate Config IDs:
- 3.3.5
- c3_3_5
- ensure_broadcast_icmp_requests_are_ignored
Resource: Class['cem_linux::utils::network::ignore_icmp_broadcast']

3.3.6 - Ensure bogus ICMP responses are ignored

Parameters:
- target - [ Optional[String[1]] ] - Default: /etc/sysctl.d/10-ignore_bogus_icmp.conf - The sysctl file that values will be written to. Default: /etc/sysctl.d/10-ignore_bogus_icmp.conf
- persist - [ Optional[Boolean] ] - Default: true - If set to false, no values will be persisted to disk. Setting this to false will cause $target and $comment to be ignored. Default: true
- comment - [ Optional[String] ] - Default: MANAGED BY PUPPET - A comment to add to add to each setting. Default: MANAGED BY PUPPET
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure bogus ICMP responses are ignored":
      target: "/etc/sysctl.d/10-ignore_bogus_icmp.conf"
      persist: true
      comment: "MANAGED BY PUPPET"

Alternate Config IDs:
- 3.3.6
- c3_3_6
- ensure_bogus_icmp_responses_are_ignored
Resource: Class['cem_linux::utils::network::ignore_bogus_icmp']

3.3.7 - Ensure Reverse Path Filtering is enabled

Parameters:
- target - [ Optional[String[1]] ] - Default: /etc/sysctl.d/10-enable_reverse_path_filtering.conf - The sysctl file that values will be written to. Default: /etc/sysctl.d/10-enable_reverse_path_filtering.conf
- persist - [ Optional[Boolean] ] - Default: true - If set to false, no values will be persisted to disk. Setting this to false will cause $target and $comment to be ignored. Default: true
- comment - [ Optional[String] ] - Default: MANAGED BY PUPPET - A comment to add to add to each setting. Default: MANAGED BY PUPPET
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure Reverse Path Filtering is enabled":
      target: "/etc/sysctl.d/10-enable_reverse_path_filtering.conf"
      persist: true
      comment: "MANAGED BY PUPPET"

Alternate Config IDs:
- 3.3.7
- c3_3_7
- ensure_reverse_path_filtering_is_enabled
Resource: Class['cem_linux::utils::network::enable_reverse_path_filtering']

3.3.8 - Ensure TCP SYN Cookies is enabled

Parameters:
- target - [ Optional[String[1]] ] - Default: /etc/sysctl.d/10-enable_tcp_syn_cookies.conf - The sysctl file that values will be written to. Default: /etc/sysctl.d/10-enable_tcp_syn_cookies.conf
- persist - [ Optional[Boolean] ] - Default: true - If set to false, no values will be persisted to disk. Setting this to false will cause $target and $comment to be ignored. Default: true
- comment - [ Optional[String] ] - Default: MANAGED BY PUPPET - A comment to add to add to each setting. Default: MANAGED BY PUPPET
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure TCP SYN Cookies is enabled":
      target: "/etc/sysctl.d/10-enable_tcp_syn_cookies.conf"
      persist: true
      comment: "MANAGED BY PUPPET"

Alternate Config IDs:
- 3.3.8
- c3_3_8
- ensure_tcp_syn_cookies_is_enabled
Resource: Class['cem_linux::utils::network::enable_tcp_syn_cookies']

3.3.9 - Ensure IPv6 router advertisements are not accepted

Parameters:
- target - [ Optional[String[1]] ] - Default: /etc/sysctl.d/10-disable_ipv6_router_advertisements.conf - The sysctl file that values will be written to. Default: /etc/sysctl.d/10-disable_ipv6_router_advertisements.conf
- persist - [ Optional[Boolean] ] - Default: true - If set to false, no values will be persisted to disk. Setting this to false will cause $target and $comment to be ignored. Default: true
- comment - [ Optional[String] ] - Default: MANAGED BY PUPPET - A comment to add to add to each setting. Default: MANAGED BY PUPPET
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure IPv6 router advertisements are not accepted":
      target: "/etc/sysctl.d/10-disable_ipv6_router_advertisements.conf"
      persist: true
      comment: "MANAGED BY PUPPET"

Alternate Config IDs:
- 3.3.9
- c3_3_9
- ensure_ipv6_router_advertisements_are_not_accepted
Resource: Class['cem_linux::utils::network::disable_ipv6_router_advertisements']

3.4.1 - Ensure DCCP is disabled

Parameters:
- target - [ Optional[String[1]] ] - Default: /etc/modprobe.d/dccp.conf - Target file to write.
- content - [ Optional[String] ] - Default: install dccp /bin/true - Target file content.
Supported Levels:
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure DCCP is disabled":
      target: "/etc/modprobe.d/dccp.conf"
      content: "install dccp /bin/true"

Alternate Config IDs:
- 3.4.1
- c3_4_1
- ensure_dccp_is_disabled
Resource: Class['cem_linux::utils::network::disable_dccp']

3.4.2 - Ensure SCTP is disabled

Parameters:
- target - [ Optional[String[1]] ] - Default: /etc/modprobe.d/sctp.conf - Target file to write.
- content - [ Optional[String] ] - Default: install sctp /bin/true - Target file content.
Supported Levels:
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure SCTP is disabled":
      target: "/etc/modprobe.d/sctp.conf"
      content: "install sctp /bin/true"

Alternate Config IDs:
- 3.4.2
- c3_4_2
- ensure_sctp_is_disabled
Resource: Class['cem_linux::utils::network::disable_sctp']

3.5.1.1 - Ensure firewalld is installed

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 3.5.1.1
- c3_5_1_1
- ensure_firewalld_is_installed
Resource: Class['cem_linux::utils::firewall::firewalld']

3.5.1.2 - Ensure iptables-services not installed with firewalld

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 3.5.1.2
- c3_5_1_2
- ensure_iptables_services_not_installed_with_firewalld
Resource: Class['cem_linux::utils::firewall::firewalld']

3.5.1.3 - Ensure nftables either not installed or masked with firewalld

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 3.5.1.3
- c3_5_1_3
- ensure_nftables_either_not_installed_or_masked_with_firewalld
Resource: Class['cem_linux::utils::firewall::firewalld']

3.5.1.4 - Ensure firewalld service enabled and running

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 3.5.1.4
- c3_5_1_4
- ensure_firewalld_service_enabled_and_running
Resource: Class['cem_linux::utils::firewall::firewalld']

3.5.1.5 - Ensure firewalld default zone is set

Parameters:
- default_zone - [ Optional[String[1]] ] - Default: public - Sets the default firewalld zone to this zone. Default: public
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure firewalld default zone is set":
      default_zone: "public"

Alternate Config IDs:
- 3.5.1.5
- c3_5_1_5
- ensure_firewalld_default_zone_is_set
Resource: Class['cem_linux::utils::firewall::firewalld']

3.5.1.6 - Ensure network interfaces are assigned to appropriate zone

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 3.5.1.6
- c3_5_1_6
- ensure_network_interfaces_are_assigned_to_appropriate_zone
Resource: Class['cem_linux::utils::firewall::firewalld']

3.5.3.1.1 - Ensure iptables packages are installed

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 3.5.3.1.1
- c3_5_3_1_1
- ensure_iptables_packages_are_installed
Resource: Class['cem_linux::utils::firewall::iptables']

3.5.3.1.2 - Ensure nftables is not installed with iptables

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 3.5.3.1.2
- c3_5_3_1_2
- ensure_nftables_is_not_installed_with_iptables
Resource: Class['cem_linux::utils::firewall::iptables']

3.5.3.1.3 - Ensure firewalld is either not installed or masked with iptables

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 3.5.3.1.3
- c3_5_3_1_3
- ensure_firewalld_is_either_not_installed_or_masked_with_iptables
Resource: Class['cem_linux::utils::firewall::iptables']

3.5.3.2.1 - Ensure iptables loopback traffic is configured

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 3.5.3.2.1
- c3_5_3_2_1
- ensure_iptables_loopback_traffic_is_configured
Resource: Class['cem_linux::utils::firewall::iptables']

3.5.3.2.2 - Ensure iptables outbound and established connections are configured

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 3.5.3.2.2
- c3_5_3_2_2
- ensure_iptables_outbound_and_established_connections_are_configured
Resource: Class['cem_linux::utils::firewall::iptables']

3.5.3.2.3 - Ensure iptables rules exist for all open ports

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 3.5.3.2.3
- c3_5_3_2_3
- ensure_iptables_rules_exist_for_all_open_ports
Resource: Class['cem_linux::utils::firewall::iptables']

3.5.3.2.4 - Ensure iptables default deny firewall policy

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 3.5.3.2.4
- c3_5_3_2_4
- ensure_iptables_default_deny_firewall_policy
Resource: Class['cem_linux::utils::firewall::iptables']

3.5.3.2.5 - Ensure iptables rules are saved

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 3.5.3.2.5
- c3_5_3_2_5
- ensure_iptables_rules_are_saved
Resource: Class['cem_linux::utils::firewall::iptables']

3.5.3.2.6 - Ensure iptables is enabled and running

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 3.5.3.2.6
- c3_5_3_2_6
- ensure_iptables_is_enabled_and_running
Resource: Class['cem_linux::utils::firewall::iptables']

3.5.3.3.1 - Ensure ip6tables loopback traffic is configured

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 3.5.3.3.1
- c3_5_3_3_1
- ensure_ip6tables_loopback_traffic_is_configured
Resource: Class['cem_linux::utils::firewall::iptables']

3.5.3.3.2 - Ensure ip6tables outbound and established connections are configured

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 3.5.3.3.2
- c3_5_3_3_2
- ensure_ip6tables_outbound_and_established_connections_are_configured
Resource: Class['cem_linux::utils::firewall::iptables']

3.5.3.3.3 - Ensure ip6tables firewall rules exist for all open ports

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 3.5.3.3.3
- c3_5_3_3_3
- ensure_ip6tables_firewall_rules_exist_for_all_open_ports
Resource: Class['cem_linux::utils::firewall::iptables']

3.5.3.3.4 - Ensure ip6tables default deny firewall policy

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 3.5.3.3.4
- c3_5_3_3_4
- ensure_ip6tables_default_deny_firewall_policy
Resource: Class['cem_linux::utils::firewall::iptables']

3.5.3.3.5 - Ensure ip6tables rules are saved

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 3.5.3.3.5
- c3_5_3_3_5
- ensure_ip6tables_rules_are_saved
Resource: Class['cem_linux::utils::firewall::iptables']

3.5.3.3.6 - Ensure ip6tables is enabled and running

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 3.5.3.3.6
- c3_5_3_3_6
- ensure_ip6tables_is_enabled_and_running
Resource: Class['cem_linux::utils::firewall::iptables']

4.1.1.1 - Ensure auditd is installed

Parameters:
- package - [ Array ] - Default: ["audit", "audit-libs"] - Packages to install for auditd. Default ['audit', 'audit-libs']
Supported Levels:
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure auditd is installed":
      package: ["audit", "audit-libs"]

Alternate Config IDs:
- 4.1.1.1
- c4_1_1_1
- ensure_auditd_is_installed
Resource: Class['cem_linux::utils::packages::linux::auditd']

4.1.1.2 - Ensure auditd service is enabled and running

Parameters:
- service - [ String[1] ] - Default: auditd - Name of auditd service. Default 'auditd'
Supported Levels:
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure auditd service is enabled and running":
      service: "auditd"

Alternate Config IDs:
- 4.1.1.2
- c4_1_1_2
- ensure_auditd_service_is_enabled_and_running
Resource: Class['cem_linux::utils::packages::linux::auditd']

4.1.1.3 - Ensure auditing for processes that start prior to auditd is enabled

Parameters:
- enable_auditd - [ Boolean ] - Default: true - Whether or not to enable auditd in the bootloader boot command.
Supported Levels:
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure auditing for processes that start prior to auditd is enabled":
      enable_auditd: true

Alternate Config IDs:
- 4.1.1.3
- c4_1_1_3
- ensure_auditing_for_processes_that_start_prior_to_auditd_is_enabled
Resource: Class['cem_linux::utils::bootloader::grub2']

4.1.2.1 - Ensure audit log storage size is configured

Parameters:
- max_log_file - [ Integer[0] ] - Default: 8 - Default 8
Supported Levels:
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure audit log storage size is configured":
      max_log_file: 8

Alternate Config IDs:
- 4.1.2.1
- c4_1_2_1
- ensure_audit_log_storage_size_is_configured
Resource: Class['cem_linux::utils::packages::linux::auditd']

4.1.2.2 - Ensure audit logs are not automatically deleted

Parameters:
- max_log_file_action - [ Enum["keep_logs", "rotate", "ignore", "syslog", "suspend"] ] - Default: keep_logs - Default 'keep_logs'
Supported Levels:
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure audit logs are not automatically deleted":
      max_log_file_action: "keep_logs"

Alternate Config IDs:
- 4.1.2.2
- c4_1_2_2
- ensure_audit_logs_are_not_automatically_deleted
Resource: Class['cem_linux::utils::packages::linux::auditd']

4.1.2.3 - Ensure system is disabled when audit logs are full

Parameters:
- space_left_action - [ Enum["ignore", "syslog", "email", "suspend", "single", "halt"] ] - Default: halt - Default 'email'
- admin_space_left_action - [ Enum["ignore", "syslog", "email", "suspend", "single", "halt"] ] - Default: halt - Default 'halt'
- action_mail_acct - [ String[1] ] - Default: root - Default 'root'
Supported Levels:
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure system is disabled when audit logs are full":
      space_left_action: "halt"
      admin_space_left_action: "halt"
      action_mail_acct: "root"

Alternate Config IDs:
- 4.1.2.3
- c4_1_2_3
- ensure_system_is_disabled_when_audit_logs_are_full
Resource: Class['cem_linux::utils::packages::linux::auditd']

4.1.2.4 - Ensure audit_backlog_limit is sufficient

Parameters:
- audit_backlog_limit - [ Integer ] - Default: 8192
Supported Levels:
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure audit_backlog_limit is sufficient":
      audit_backlog_limit: 8192

Alternate Config IDs:
- 4.1.2.4
- c4_1_2_4
- ensure_audit_backlog_limit_is_sufficient
Resource: Class['cem_linux::utils::bootloader::grub2']

4.1.3 - Ensure events that modify date and time information are collected

Parameters:
- audit_time_change - [ Boolean ] - Default: true
Supported Levels:
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure events that modify date and time information are collected":
      audit_time_change: true

Alternate Config IDs:
- 4.1.3
- c4_1_3
- ensure_events_that_modify_date_and_time_information_are_collected
Resource: Class['cem_linux::utils::packages::linux::auditd']

4.1.4 - Ensure events that modify user/group information are collected

Parameters:
- audit_usergroup_modification - [ Boolean ] - Default: true
Supported Levels:
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure events that modify user/group information are collected":
      audit_usergroup_modification: true

Alternate Config IDs:
- 4.1.4
- c4_1_4
- ensure_events_that_modify_usergroup_information_are_collected
Resource: Class['cem_linux::utils::packages::linux::auditd']

4.1.5 - Ensure events that modify the system's network environment are collected

Parameters:
- audit_network_environment - [ Boolean ] - Default: true
Supported Levels:
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure events that modify the system's network environment are collected":
      audit_network_environment: true

Alternate Config IDs:
- 4.1.5
- c4_1_5
- ensure_events_that_modify_the_systems_network_environment_are_collected
Resource: Class['cem_linux::utils::packages::linux::auditd']

4.1.6 - Ensure events that modify the system's Mandatory Access Controls are collected

Parameters:
- audit_mac_modification - [ Boolean ] - Default: true
Supported Levels:
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure events that modify the system's Mandatory Access Controls are collected":
      audit_mac_modification: true

Alternate Config IDs:
- 4.1.6
- c4_1_6
- ensure_events_that_modify_the_systems_mandatory_access_controls_are_collected
Resource: Class['cem_linux::utils::packages::linux::auditd']

4.1.7 - Ensure login and logout events are collected

Parameters:
- audit_lastlog_log - [ Boolean ] - Default: true
- audit_faillock_run - [ Boolean ] - Default: true
Supported Levels:
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure login and logout events are collected":
      audit_lastlog_log: true
      audit_faillock_run: true

Alternate Config IDs:
- 4.1.7
- c4_1_7
- ensure_login_and_logout_events_are_collected
Resource: Class['cem_linux::utils::packages::linux::auditd']

4.1.8 - Ensure session initiation information is collected

Parameters:
- audit_session_initiation - [ Boolean ] - Default: true
Supported Levels:
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure session initiation information is collected":
      audit_session_initiation: true

Alternate Config IDs:
- 4.1.8
- c4_1_8
- ensure_session_initiation_information_is_collected
Resource: Class['cem_linux::utils::packages::linux::auditd']

4.1.9 - Ensure discretionary access control permission modification events are collected

Parameters:
- audit_dac_modification - [ Boolean ] - Default: true
Supported Levels:
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure discretionary access control permission modification events are collected":
      audit_dac_modification: true

Alternate Config IDs:
- 4.1.9
- c4_1_9
- ensure_discretionary_access_control_permission_modification_events_are_collected
Resource: Class['cem_linux::utils::packages::linux::auditd']

4.1.10 - Ensure unsuccessful unauthorized file access attempts are collected

Parameters:
- audit_unauthorized_file_access - [ Boolean ] - Default: true
Supported Levels:
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure unsuccessful unauthorized file access attempts are collected":
      audit_unauthorized_file_access: true

Alternate Config IDs:
- 4.1.10
- c4_1_10
- ensure_unsuccessful_unauthorized_file_access_attempts_are_collected
Resource: Class['cem_linux::utils::packages::linux::auditd']

4.1.11 - Ensure use of privileged commands is collected

Parameters:
- audit_privileged_commands - [ Boolean ] - Default: true
Supported Levels:
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure use of privileged commands is collected":
      audit_privileged_commands: true

Alternate Config IDs:
- 4.1.11
- c4_1_11
- ensure_use_of_privileged_commands_is_collected
Resource: Class['cem_linux::utils::packages::linux::auditd']

4.1.12 - Ensure successful file system mounts are collected

Parameters:
- audit_file_system_mounts - [ Boolean ] - Default: true
Supported Levels:
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure successful file system mounts are collected":
      audit_file_system_mounts: true

Alternate Config IDs:
- 4.1.12
- c4_1_12
- ensure_successful_file_system_mounts_are_collected
Resource: Class['cem_linux::utils::packages::linux::auditd']

4.1.13 - Ensure file deletion events by users are collected

Parameters:
- audit_file_deletion_events - [ Boolean ] - Default: true
Supported Levels:
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure file deletion events by users are collected":
      audit_file_deletion_events: true

Alternate Config IDs:
- 4.1.13
- c4_1_13
- ensure_file_deletion_events_by_users_are_collected
Resource: Class['cem_linux::utils::packages::linux::auditd']

4.1.14 - Ensure changes to system administration scope (sudoers) is collected

Parameters:
- audit_sudoers_modification - [ Boolean ] - Default: true
Supported Levels:
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure changes to system administration scope (sudoers) is collected":
      audit_sudoers_modification: true

Alternate Config IDs:
- 4.1.14
- c4_1_14
- ensure_changes_to_system_administration_scope_sudoers_is_collected
Resource: Class['cem_linux::utils::packages::linux::auditd']

4.1.15 - Ensure system administrator command executions (sudo) are collected

Parameters:
- audit_sudo_actions - [ Boolean ] - Default: true
Supported Levels:
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure system administrator command executions (sudo) are collected":
      audit_sudo_actions: true

Alternate Config IDs:
- 4.1.15
- c4_1_15
- ensure_system_administrator_command_executions_sudo_are_collected
Resource: Class['cem_linux::utils::packages::linux::auditd']

4.1.16 - Ensure kernel module loading and unloading is collected

Parameters:
- audit_kernel_module_loading - [ Boolean ] - Default: true
Supported Levels:
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure kernel module loading and unloading is collected":
      audit_kernel_module_loading: true

Alternate Config IDs:
- 4.1.16
- c4_1_16
- ensure_kernel_module_loading_and_unloading_is_collected
Resource: Class['cem_linux::utils::packages::linux::auditd']

4.1.17 - Ensure the audit configuration is immutable

Parameters:
- set_immutable_configuration - [ Boolean ] - Default: true
Supported Levels:
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure the audit configuration is immutable":
      set_immutable_configuration: true

Alternate Config IDs:
- 4.1.17
- c4_1_17
- ensure_the_audit_configuration_is_immutable
Resource: Class['cem_linux::utils::packages::linux::auditd']

4.2.1.1 - Ensure rsyslog is installed

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 4.2.1.1
- c4_2_1_1
- ensure_rsyslog_is_installed
Resource: Class['cem_linux::utils::packages::linux::rsyslog']

4.2.1.2 - Ensure rsyslog Service is enabled and running

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 4.2.1.2
- c4_2_1_2
- ensure_rsyslog_service_is_enabled_and_running
Resource: Class['cem_linux::utils::packages::linux::rsyslog']

4.2.1.3 - Ensure rsyslog default file permissions configured

Parameters:
- filecreatemode - [ Optional[String] ] - Default: 0640 - Default file creation mode. Default '0640'.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure rsyslog default file permissions configured":
      filecreatemode: "0640"

Alternate Config IDs:
- 4.2.1.3
- c4_2_1_3
- ensure_rsyslog_default_file_permissions_configured
Resource: Class['cem_linux::utils::packages::linux::rsyslog']

4.2.1.4 - Ensure logging is configured

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 4.2.1.4
- c4_2_1_4
- ensure_logging_is_configured
Resource: Class['cem_linux::utils::packages::linux::rsyslog']

4.2.1.5 - Ensure rsyslog is configured to send logs to a remote log host

Parameters:
- remote_log_host - [ Optional[Variant[Stdlib::IP::Address, String[1], Array[Struct[{service=>String[1], host=>Variant[Stdlib::IP::Address, String[1]]}]]]] ] - Default: undef
- tcp_port - [ Optional[Integer] ] - Default: 514 - The port to use for the $InputTCPServerRun option. Default: 514
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure rsyslog is configured to send logs to a remote log host":
      remote_log_host: <<Type Variant[Stdlib::IP::Address, String[1], Array[Struct[{service=>String[1], host=>Variant[Stdlib::IP::Address, String[1]]}]]]>>
      tcp_port: 514

Alternate Config IDs:
- 4.2.1.5
- c4_2_1_5
- ensure_rsyslog_is_configured_to_send_logs_to_a_remote_log_host
Resource: Class['cem_linux::utils::packages::linux::rsyslog']

4.2.1.6 - Ensure remote rsyslog messages are only accepted on designated log hosts.

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 4.2.1.6
- c4_2_1_6
- ensure_remote_rsyslog_messages_are_only_accepted_on_designated_log_hosts
Resource: Class['cem_linux::utils::packages::linux::rsyslog']

4.2.2.1 - Ensure journald is configured to send logs to rsyslog

Parameters:
- forward_to_syslog - [ Optional[Variant[Boolean, Stdlib::Yes_no]] ] - Default: true - If defined, configures option ForwardToSyslog=<yes|no> in the journald config. If a Boolean value is passed, true maps to yes and false maps to no.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure journald is configured to send logs to rsyslog":
      forward_to_syslog: true

Alternate Config IDs:
- 4.2.2.1
- c4_2_2_1
- ensure_journald_is_configured_to_send_logs_to_rsyslog
Resource: Class['cem_linux::utils::services::systemd::journald']

4.2.2.2 - Ensure journald is configured to compress large log files

Parameters:
- compress_large_files - [ Optional[Variant[Boolean, Stdlib::Yes_no]] ] - Default: true - If defined, configures option Compress=<yes|no> in the journald config. If a Boolean value is passed, true maps to yes and false maps to no.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure journald is configured to compress large log files":
      compress_large_files: true

Alternate Config IDs:
- 4.2.2.2
- c4_2_2_2
- ensure_journald_is_configured_to_compress_large_log_files
Resource: Class['cem_linux::utils::services::systemd::journald']

4.2.2.3 - Ensure journald is configured to write logfiles to persistent disk

Parameters:
- persistent_storage - [ Optional[Boolean] ] - Default: true - Convenience method to set persistent as the storage option. If true, configures option Storage=persistent in the journald config.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure journald is configured to write logfiles to persistent disk":
      persistent_storage: true

Alternate Config IDs:
- 4.2.2.3
- c4_2_2_3
- ensure_journald_is_configured_to_write_logfiles_to_persistent_disk
Resource: Class['cem_linux::utils::services::systemd::journald']

4.2.3 - Ensure permissions on all logfiles are configured

Parameters:
- mode - [ Stdlib::Filemode ] - Default: 0640
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure permissions on all logfiles are configured":
      mode: "0640"

Alternate Config IDs:
- 4.2.3
- c4_2_3
- ensure_permissions_on_all_logfiles_are_configured
Resource: Class['cem_linux::utils::chmod_logfiles']

4.2.4 - Ensure logrotate is configured

Parameters:
- No parameters
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Alternate Config IDs:
- 4.2.4
- c4_2_4
- ensure_logrotate_is_configured
Resource: Class['cem_linux::utils::packages::linux::logrotate']

5.1.1 - Ensure cron daemon is enabled and running

Parameters:
- manage_package - [ Optional[Boolean] ] - Default: true - If true, ensures the cronie package is installed. Default: true
- manage_service - [ Optional[Boolean] ] - Default: true - If true, enables and runs the crond daemon with a service resource. Default: true
- cron_allow_path - [ Optional[Stdlib::AbsolutePath] ] - Default: /etc/cron.allow - The path for the cron.allow file to manage. Only relevant if set_cron_allow_perms is set to true. Default: /etc/cron.allow
- purge_cron_deny - [ Optional[Boolean] ] - Default: true - If true, removes (if they exist) /etc/cron.deny and /etc/cron.d/cron.deny. Default: true
- manage_cron_allow - [ Optional[Boolean] ] - Default: true - If true, creates the cron.allow file specified by the cron_allow_path parameter and enforces 0600 permissions on the file. Default: true
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure cron daemon is enabled and running":
      manage_package: true
      manage_service: true
      cron_allow_path: "/etc/cron.allow"
      purge_cron_deny: true
      manage_cron_allow: true

Alternate Config IDs:
- 5.1.1
- c5_1_1
- ensure_cron_daemon_is_enabled_and_running
Resource: Class['cem_linux::utils::packages::linux::cron']

5.1.2 - Ensure permissions on /etc/crontab are configured

Parameters:
- set_crontab_perms - [ Optional[Boolean] ] - Default: true - If true, enforces 0600 permissions on /etc/crontab. Default: true
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure permissions on /etc/crontab are configured":
      set_crontab_perms: true

Alternate Config IDs:
- 5.1.2
- c5_1_2
- ensure_permissions_on_etccrontab_are_configured
Resource: Class['cem_linux::utils::packages::linux::cron']

5.1.3 - Ensure permissions on /etc/cron.hourly are configured

Parameters:
- set_hourly_cron_perms - [ Optional[Boolean] ] - Default: true - If true, enforces 0700 permissions on /etc/cron.hourly. Default: true
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure permissions on /etc/cron.hourly are configured":
      set_hourly_cron_perms: true

Alternate Config IDs:
- 5.1.3
- c5_1_3
- ensure_permissions_on_etccron_hourly_are_configured
Resource: Class['cem_linux::utils::packages::linux::cron']

5.1.4 - Ensure permissions on /etc/cron.daily are configured

Parameters:
- set_daily_cron_perms - [ Optional[Boolean] ] - Default: true - If true, enforces 0700 permissions on /etc/cron.daily. Default: true
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure permissions on /etc/cron.daily are configured":
      set_daily_cron_perms: true

Alternate Config IDs:
- 5.1.4
- c5_1_4
- ensure_permissions_on_etccron_daily_are_configured
Resource: Class['cem_linux::utils::packages::linux::cron']

5.1.5 - Ensure permissions on /etc/cron.weekly are configured

Parameters:
- set_weekly_cron_perms - [ Optional[Boolean] ] - Default: true - If true, enforces 0700 permissions on /etc/cron.weekly. Default: true
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure permissions on /etc/cron.weekly are configured":
      set_weekly_cron_perms: true

Alternate Config IDs:
- 5.1.5
- c5_1_5
- ensure_permissions_on_etccron_weekly_are_configured
Resource: Class['cem_linux::utils::packages::linux::cron']

5.1.6 - Ensure permissions on /etc/cron.monthly are configured

Parameters:
- set_monthly_cron_perms - [ Optional[Boolean] ] - Default: true - If true, enforces 0700 permissions on /etc/cron.monthly. Default: true
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure permissions on /etc/cron.monthly are configured":
      set_monthly_cron_perms: true

Alternate Config IDs:
- 5.1.6
- c5_1_6
- ensure_permissions_on_etccron_monthly_are_configured
Resource: Class['cem_linux::utils::packages::linux::cron']

5.1.7 - Ensure permissions on /etc/cron.d are configured

Parameters:
- set_cron_d_perms - [ Optional[Boolean] ] - Default: true - If true, enforces 0700 permissions on /etc/cron.d. Default: true
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure permissions on /etc/cron.d are configured":
      set_cron_d_perms: true

Alternate Config IDs:
- 5.1.7
- c5_1_7
- ensure_permissions_on_etccron_d_are_configured
Resource: Class['cem_linux::utils::packages::linux::cron']

5.1.8 - Ensure cron is restricted to authorized users

Parameters:
- cron_allowlist - [ Optional[Array[String[1]]] ] - Default: ["root"] - An array of user names to add to the cron.allow file. Default: [root]
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure cron is restricted to authorized users":
      cron_allowlist: ["root"]

Alternate Config IDs:
- 5.1.8
- c5_1_8
- ensure_cron_is_restricted_to_authorized_users
Resource: Class['cem_linux::utils::packages::linux::cron']

5.1.9 - Ensure at is restricted to authorized users

Parameters:
- at_allowlist - [ Optional[Array[String[1]]] ] - Default: ["root"] - An array of user names to add to the at.allow file. Default: [root]
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure at is restricted to authorized users":
      at_allowlist: ["root"]

Alternate Config IDs:
- 5.1.9
- c5_1_9
- ensure_at_is_restricted_to_authorized_users
Resource: Class['cem_linux::utils::packages::linux::at']

5.2.1 - Ensure sudo is installed

Parameters:
- package_ensure - [ Optional[Enum[\installed\, \latest\, \absent\]] ] - Default: installed - Used with the sudo package resource.
- package_name - [ Optional[String[1]] ] - Default: sudo - The name of the sudo package to ensure. Defaults to "sudo"
- sudoers_path - [ Optional[Stdlib::UnixPath] ] - Default: /etc/sudoers - Path to the sudoers file. Default: /etc/sudoers
- sudoers_d_path - [ Optional[Stdlib::UnixPath] ] - Default: /etc/sudoers.d - Path to the sudoers.d directory. Default: /etc/sudoers.d
- defaults - [ Optional[Hash[String[1], Optional[String]]] ] - Default: undef - Options to be added as Defaults in the sudoers file. Keys in the hash become options, and values become the values. If the option you want to specify does not have a value, make the value "undef". For example, to set a default sudo logfile, it would look like: $defaults => { 'logfile' => '/var/log/sudo.log'} which would then be written to the sudoers file as Defaults logfile = /var/log/sudo.log. If you wanted to specify an option with no value, it would look like: $defaults => { 'use_pty' => undef } which would then be written to the sudoers file as Defaults use_pty.
- drop_ins - [ Optional[Hash[String[1], Struct[{user_group=>Optional[Variant[String[1], Array[String[1]]]], host=>Optional[String[1]], target_users=>Optional[Variant[String[1], Array[String[1]]]], priority=>Optional[Integer], commands=>Optional[Variant[Enum[\\\\\\\\\\\\\\\\ALL\\\\\\\\\\\\\\\\], Array[String[1]]]], options=>Optional[Array[String[1]]], file_name=>Optional[String[1]]}]]] ] - Default: undef - Allows to you configure "drop-in" suoders files that are created in the sudoers.d directory. This param gets passed directly to the defined type cem_linux::utils::packages::linux::sudo::user_group. The key of the hash equates to the defined type's resource name, while the value is a struct with options aligning directly to the defined type's parameters. See cem_linux::utils::packages::linux::sudo::user_group for more details.
Supported Levels:
- level_1
- level_2
Supported Profiles:
- server
- workstation
Hiera Configuration Example:

puppetlabs-cem_linux::config:
  control_configs:
    "Ensure sudo is installed":
      package_ensure: "installed"
      package_name: "sudo"
      sudoers_path: "/etc/sudoers"
      sudoers_d_path: "/etc/sudoers.d"
      defaults: <<Type Hash[String[1], Optional[String]]>>
      drop_ins: <<Type Hash[String[1], Struct[{user_group=>Optional[Variant[String[1], Array[String[1]]]], host=>Optional[String[1]], target_users=>Optional[Variant[String[1], Array[String[1]]]], priority=>Optional[Integer], commands=>Optional[Variant[Enum[\\\\\\\\\\\\\\\\ALL\\\\\\\\\\\\\\\\], Array[String[1]]]], options=>Optional[Array[String[1]]], file_name=>Optional[String[1]]}]]>>

Alternate Config IDs:
- 5.2.1
- c5_2_1
- ensure_sudo_is_installed
Resource: Class['cem_linux::utils::packages::linux::sudo']

5.2.2 - Ensure sudo commands use pty

What are tasks?

Modules can contain tasks that take action outside of a desired state managed by Puppet. It’s perfect for troubleshooting or deploying one-off changes, distributing scripts to run across your infrastructure, or automating changes that need to happen in a particular order as part of an application deployment.

Tasks in this module release

audit_authselect

Audit authselect profile for RHEL8 and CentOS8

audit_boot

Audit if the system is configured to boot to the command line or to the graphical user interface.

audit_check_ipv6

Audit IPV6 for RHEL8

audit_client_dns

Audit DNS servers configured in /etc/resolv.conf

audit_duplicate_gid

Finds and returns duplicate GIDs in /etc/group

audit_duplicate_group_names

Finds and returns duplicate group names in /etc/group.

audit_duplicate_uid

Finds duplicate UIDs in /etc/passwd and returns the UID and all users that use it

audit_duplicate_user_names

Finds and returns duplicate user names in /etc/passwd.

audit_etcpasswd_groups

Finds groups that exist in /etc/passwd but do not exist in /etc/group

audit_firewalld_config

Returns the results of firewall-cmd --list-all

audit_for_emergency_accounts

Audit all accounts expiration dates for removal.

audit_kerberos_keytab_files

List all the keytab files on the system at /etc

audit_library_files

Audit library files permission, ownership, and group ownership

audit_mcafee_endpoint_security

Audit McAfee Endpoint Security for Linux

audit_no_execution_bit_flag

Audit for the no-execution bit flag on the system

audit_partition_crypto

Audit partition cryptography

audit_pkcs11_eventmgr

This task will report on whether the screen is locked or not when using smart card.

audit_pw_change_date

Returns the last password change date for all users

audit_selinux_user_roles

Returns the output of 'semanage user -l' on the target system

audit_sgid_executables

A short description of this task

audit_shadow_group

Finds and returns any users in the shadow group

audit_ssh_key_authorized_access

This task checks that the given SSH provate keys are passphrase protected.

Parameters
private_keys	The SSH private keys to check. `Array[String]`

audit_sshd_installation

Verify if sshd is installed

audit_sshd_status

Report sshd status

audit_sssd_certmap

Audit the existance of sssd certmap configuration

audit_sudo_authentication_timeout

Return the sudo authentication timeout in minutes

audit_sudo_nopasswd

Return instances of NOPASSWD: in sudo configuration files.

audit_sudo_re_authentication

Returns a list of any ungrouped sudo configuration entries that contain !authenticate.

audit_suid_executables

Returns a list of SUID executable files

audit_system_command_permission

Audit system commands permission, ownership and group ownership

Change log

All notable changes to this project will be documented in this file. The format is based on Keep a Changelog and this project adheres to Semantic Versioning.

v1.4.2 (2022-10-20)

Starting with the Compliance Enforcement Module (CEM) for Linux v1.4.0, the product documentation is revised to improve visibility, usability, and retrievability. Key parts of the documentation were migrated to the Puppet Docs website, where documentation for other Puppet products is published:

The change log was migrated and renamed to Release notes. You can find the product updates for CEM Linux v1.4.0 there.
The readme content was revised and transformed into a series of topics with a structure similar to other Puppet documentation. The revised readme content can be viewed on Puppet Docs, starting with Introducing the Compliance Enforcement Modules.
The Reference, Tasks, and Dependencies documentation, which is generated automatically, remains on Puppet Forge.

v1.3.2 (2022-09-08)

Added

The Ensure core dump storage is disabled and Ensure core dump backtraces are disabled controls are now enforced on Red Hat Enterprise Linux (RHEL) 8 systems.
Added a new enforcement mode, disabled, so that you can disable Security Enhanced Linux (SELinux) in your environment.

Changed

The Ensure audit log is disabled when audit logs are full control is updated to halt the machine when the audit log is full. This change helps to ensure better compliance with Center for Internet Security (CIS) recommendations.
To simplify configuration, the ntp and chrony classes were combined into the timesync class.

Fixed

The Disable USB Storage control is updated to work as designed.
The regular expression for matching Linux username patterns is updated to accept capital letters.
Rules in the /etc/auditd/rules.d directory are now loaded by using the augenrules --load command. This fix helps to ensure that all rule files within the directory are loaded into the kernel.
Fixed the per-resource ordering process by using the correct metaparameter before instead of subscribe.
Fixed a parsing error for chrony that caused catalog compilation failures.
Fixed a command injection vulnerability that could occur when unsanitized user input was used in the command, onlyif, or unless parameters of an exec resource.
Fixed an issue with the permissions of Secure Shell (SSH) host private keys to ensure that the permissions are sufficiently restrictive.
Fixed the cem_systemctl feature to return a result of false without error messages in Puppet run logs when the feature is evaluated on Microsoft Windows machines.
Fixed an issue with the cem_mta fact that caused errors in RHEL 6.

v1.3.1 (2022-08-18)

Fixed

Controls that configure journald now properly configure the journald.conf file.
The cem_coredump fact will no longer attempt to resolve on nodes that do not support systemctl.
The cem_grub_cfg fact will now identify the correct GRUB2 configuration file on Red Hat Enterprise Linux 7.
The CIS-specific parameters enable_systemd_journal and enable_nopasswd_sudo_prune now function correctly.
Fixed how Ruby code is loaded during Continuous Delivery for Puppet Enterprise impact analysis. This update fixes a bug that caused impact analysis to fail after upgrading CEM Linux to v1.3.0.
Fixed invalid default parameter values that caused catalog compilation failures when enforcing the control ensure_password_creation_requirements_are_configured.
Fixed a duplicate resource defaults statement that caused catalog compilation failures when selecting ntp as the time synchronization service.

v1.3.0 (2022-08-03)

Changed

The core architecture for the module has changed. These changes should be transparent to the user. However, using Hiera automatic parameter lookup to set configurations directly on classes in the cem_linux::benchmarks::controls::* namespace will no longer work. This configuration method was not supported previously, and with the new architecture those classes have been removed and replaced with module Hiera data.
For more information on the new architecture, see the readme file.
The reference was revised to improve usability. Sample configurations are provided for each supported control.

Fixed

Added proper containment to the cem_coredump fact so it will no longer run on operating systems that do not support it.
Fixed how NTP options are handled. This fix resolves failures that occurred when using certain timeserver options.

v1.2.0 (2022-05-24)

Added

Added the Center for Internet Security (CIS) Level 2 Server profile for Red Hat Enterprise Linux (RHEL) 7.

Changed

Updated the CIS RHEL 8 benchmark to version 2.0.0.
Removed support for CentOS 8 because the operating system has reached End of Life (EOL).
- CEM Linux has never supported CentOS Stream, and with non-stream CentOS 8 being EOL, support for it was removed entirely.

Fixed

Fixed an issue that prevented the coredump configuration setting from being properly enforced. Now, you can use the module to configure core dumps.
Fixed an issue related to file system mount points, which were not properly remounted after changes in mount-option enforcement. This issue prevented certain configuration changes from being applied.

v1.1.4 (2022-03-25)

Changed

Updated the audit_user_homedir task to prevent the task from modifying permissions on top-level directories: /boot, /boot/, /etc, /lib, /lib64, /proc, /proc/, /home, /opt, /tmp, /var, and /srv/. The audit_user_homedir task can still modify permissions on subdirectories within the listed directories, except for /boot and /proc.
In the audit_user_homedir task, added rtkit to the list of ignored usernames. Because rtkit is a system user, CIS states that the home directory permissions for rtkit should not be audited.

v1.1.3 (2022-03-24)

Fixed

Fixed a bug in the audit_user_homedir task to prevent the inadvertent modification of permissions on bin directories: /bin, /sbin, /usr/bin, and /usr/sbin.

v1.1.2 (2022-03-16)

Added

Added a section to the CEM Reference about configuring chrony/ntp time servers.

Changed

Expanded the range of versions in the metadata.json file so that users can install the latest modules to meet dependency requirements.

Fixed

Fixed a bug in the cem_linux::utils::timesync configuration option that caused Puppet run failures when Network Time Protocol (NTP) was selected for time synchronization.
Fixed a bug that caused a Puppet run failure during attempts to use a template to provide the Message of the Day (MOTD).
Fixed a bug relating to unsupported options in the auditd config template on Red Hat Enterprise Linux (RHEL) 7. The bug caused startup failures for the auditd service.

v1.1.1 (2022-01-25)

Fixed

Fixed an issue related to non-idempotent resources when managing permissions for the Grub2 bootloader configuration. This issue affected Red Hat Enterprise Linux (RHEL) systems that did not use Extensible Firmware Interface (EFI) mode.

v1.1.0 (2021-12-14)

Added

Enforcement for Center for Internet Security (CIS) Red Hat Enterprise Linux 8 Server Level 2 recommendations.
Updates related to bootloader configurations. Configurations, including password settings, can now be managed through the CEM module on systems that use the grub2 bootloader.
- You can also opt in to automatically regenerate the bootloader config files after changes are made.
- For details, see the CEM for Linux readme file.
Permissions management for log files in the /var/log directory is now available in the module. Previously, you had to run a Bolt task to manage permissions for log files.
- Because this feature is now supported natively, the Bolt task cem_linux::logfile_permissions was removed.
Added a new fact, cem_grub_cfg. This fact contains information related to general grub configuration on the machine.

Changed

Replaced the camptocamp-systemd module with the supported puppet-systemd module. To help ensure compatibility, you must update your Puppetfile to use the puppet-systemd module v3.5.0 or later.
The cem_uefi_boot fact was changed to cem_efi and more information was added to the fact. The new name is more representative because the fact now includes boot and other information.

Restriction

When you scan a node with Puppet Comply after applying CEM, some recommendations that are enforced by CEM might be reported as having failed the scan. This issue is due to bugs in the CIS-CAT Pro Assessor that is used by Comply. For more information, see the readme file.

v1.0.0 (2021-09-28)

This is the initial public release of CEM for Linux.

Modules

Discover

Contribute

Puppet

Premium features

Downloads

Resources

About Forge

Getting Started

cem_linux

Version information

This version is compatible with:

This module has been deprecated by its author since May 8th 2024.

Tasks:

Documentation

cem_linux

CEM Linux Reference

Table of Contents

CIS CentOS Linux 7 Benchmark 3.1.2

1.1.1.1 - Ensure mounting of cramfs filesystems is disabled

1.1.1.2 - Ensure mounting of squashfs filesystems is disabled

1.1.1.3 - Ensure mounting of udf filesystems is disabled

1.1.3 - Ensure noexec option set on /tmp partition

1.1.4 - Ensure nodev option set on /tmp partition

1.1.5 - Ensure nosuid option set on /tmp partition

1.1.7 - Ensure noexec option set on /dev/shm partition

1.1.8 - Ensure nodev option set on /dev/shm partition

1.1.9 - Ensure nosuid option set on /dev/shm partition

1.1.22 - Ensure sticky bit is set on all world-writable directories

1.1.23 - Disable Automounting

1.1.24 - Disable USB Storage

1.2.3 - Ensure gpgcheck is globally activated

1.3.1 - Ensure AIDE is installed

1.4.1 - Ensure bootloader password is set

1.4.2 - Ensure permissions on bootloader config are configured

1.4.3 - Ensure authentication required for single user mode

1.5.1 - Ensure core dumps are restricted

1.5.3 - Ensure address space layout randomization (ASLR) is enabled

1.5.4 - Ensure prelink is not installed

1.6.1.1 - Ensure SELinux is installed

1.6.1.2 - Ensure SELinux is not disabled in bootloader configuration

1.6.1.3 - Ensure SELinux policy is configured

1.6.1.4 - Ensure the SELinux mode is enforcing or permissive

1.6.1.5 - Ensure the SELinux mode is enforcing

1.6.1.7 - Ensure SETroubleshoot is not installed

1.6.1.8 - Ensure the MCS Translation Service (mcstrans) is not installed

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

1.7.4 - Ensure permissions on /etc/motd are configured

1.7.5 - Ensure permissions on /etc/issue are configured

1.7.6 - Ensure permissions on /etc/issue.net are configured

2.1.1 - Ensure xinetd is not installed

2.2.1.1 - Ensure time synchronization is in use

2.2.1.2 - Ensure chrony is configured

2.2.1.3 - Ensure ntp is configured

2.2.2 - Ensure X11 Server components are not installed

2.2.3 - Ensure Avahi Server is not installed

2.2.4 - Ensure CUPS is not installed

2.2.5 - Ensure DHCP Server is not installed

2.2.6 - Ensure LDAP server is not installed

2.2.7 - Ensure DNS Server is not installed

2.2.8 - Ensure FTP Server is not installed

2.2.9 - Ensure HTTP server is not installed

2.2.10 - Ensure IMAP and POP3 server is not installed

2.2.11 - Ensure Samba is not installed

2.2.12 - Ensure HTTP Proxy Server is not installed

2.2.13 - Ensure net-snmp is not installed

2.2.14 - Ensure NIS server is not installed

2.2.15 - Ensure telnet-server is not installed

2.2.16 - Ensure mail transfer agent is configured for local-only mode

2.2.17 - Ensure nfs-utils is not installed or the nfs-server service is masked

2.2.18 - Ensure rpcbind is not installed or the rpcbind services are masked

2.2.19 - Ensure rsync is not installed or the rsyncd service is masked

2.3.1 - Ensure NIS Client is not installed

2.3.2 - Ensure rsh client is not installed

2.3.3 - Ensure talk client is not installed

2.3.4 - Ensure telnet client is not installed

2.3.5 - Ensure LDAP client is not installed

3.1.1 - Disable IPv6

`cem_linux`