mirror of
https://github.com/rocky-linux/infrastructure
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fcdf86b31c
This commit appends the README.md to state that yaml files should start with `---` and end with `...`. This also addresses some linting warnings that were not appearing during pre-commit on local system.
218 lines
4.9 KiB
YAML
218 lines
4.9 KiB
YAML
---
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# Initial hardening ideas from CIS
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- name: sysctl hardening and limits
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block:
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- name: create combined sysctl-dict if overwrites are defined
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set_fact:
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sysctl_config: '{{ sysctl_config | combine(sysctl_overwrite) }}'
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when: sysctl_overwrite | default()
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- name: Kernel parameters
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sysctl:
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name: "{{ item.key }}"
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value: "{{ item.value }}"
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state: present
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ignoreerrors: true
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sysctl_set: true
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sysctl_file: /etc/sysctl.d/99-ansible.conf
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with_dict: "{{ sysctl_config }}"
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tags:
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- harden
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- kernel
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- name: Security limits
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pam_limits:
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dest: "/etc/security/limits.d/cis.conf"
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domain: "{{ item.domain }}"
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limit_type: "{{ item.limit_type }}"
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limit_item: "{{ item.limit_item }}"
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value: "{{ item.value }}"
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with_items: "{{ limits }}"
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tags:
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- harden
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- name: Standard login settings
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block:
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- name: useradd defaults
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lineinfile:
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line: "INACTIVE=30"
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regexp: "^INACTIVE=.*"
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path: "/etc/login.defs"
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tags:
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- harden
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- name: login defs maximum days
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replace:
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path: /etc/login.defs
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regexp: '(PASS_MAX_DAYS).*\d+'
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replace: '\1\t{{ login_max_days }}'
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tags:
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- harden
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- name: login defs minimum days
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replace:
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path: /etc/login.defs
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regexp: '(PASS_MIN_DAYS).*\d+'
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replace: '\1\t{{ login_min_days }}'
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tags:
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- harden
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- name: login defs minimum length
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replace:
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path: /etc/login.defs
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regexp: '(PASS_MIN_LEN).*\d+'
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replace: '\1\t{{ login_min_len }}'
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tags:
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- harden
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- name: login defs warn age
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replace:
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path: /etc/login.defs
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regexp: '(PASS_WARN_AGE).*\d+'
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replace: '\1\t{{ login_warn_age }}'
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tags:
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- harden
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- name: cron directories permissions
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file:
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path: '{{ item }}'
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owner: root
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group: root
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mode: '0700'
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state: directory
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loop: '{{ login_cron_directories }}'
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tags:
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- harden
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- name: Create cron/at allows
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file:
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path: '{{ item }}'
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owner: root
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group: root
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mode: '0600'
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state: touch
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loop: '{{ login_cron_allows }}'
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tags:
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- harden
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- name: Remove cron/at denies
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file:
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path: '{{ item }}'
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state: absent
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loop: '{{ login_cron_denies }}'
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tags:
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- harden
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# TODO: Use pamd module to establish password policy
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- name: pwquality - minlen
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lineinfile:
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line: "minlen = 14"
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regexp: "^# minlen =.*"
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path: "/etc/security/pwquality.conf"
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tags:
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- harden
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- name: pwquality - dcredit
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lineinfile:
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line: "dcredit = -1"
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regexp: "^# dcredit =.*"
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path: "/etc/security/pwquality.conf"
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tags:
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- harden
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- name: pwquality - ucredit
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lineinfile:
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line: "ucredit = -1"
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regexp: "^# ucredit =.*"
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path: "/etc/security/pwquality.conf"
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tags:
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- harden
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- name: pwquality - lcredit
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lineinfile:
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line: "lcredit = -1"
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regexp: "^# lcredit =.*"
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path: "/etc/security/pwquality.conf"
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tags:
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- harden
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- name: pwquality - ocredit
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lineinfile:
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line: "ocredit = -1"
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regexp: "^# ocredit =.*"
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path: "/etc/security/pwquality.conf"
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tags:
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- harden
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- name: Remove packages not allowed by CIS
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package:
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name: "{{ remove_packages }}"
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state: absent
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tags:
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- harden
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- name: Disable Services
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service:
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name: "{{ item }}"
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enabled: false
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state: stopped
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loop: "{{ disable_svc }}"
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register: service_check
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failed_when: service_check is failed and not 'Could not find the requested service' in service_check.msg
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tags:
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- services
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- harden
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- name: modprobe settings
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block:
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- name: remove vfat from filesystem list if we are EFI
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set_fact:
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modprobe_unused_filesystems: "{{ modprobe_unused_filesystems | difference('vfat') }}"
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when:
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- efi_installed.stat.isdir is defined
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- efi_installed.stat.isdir
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tags:
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- efi
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- name: disable unused filesystems
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template:
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src: "etc/modprobe.d/cis.conf.j2"
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dest: "/etc/modprobe.d/cis.conf"
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owner: 'root'
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group: 'root'
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mode: '0644'
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tags:
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- harden
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- name: Set init umask
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lineinfile:
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dest: /etc/sysconfig/init
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state: present
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regexp: ^umask
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line: "umask 027"
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create: true
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owner: root
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group: root
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mode: '0644'
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when: ansible_distribution_major_version == '7'
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tags:
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- harden
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- name: CIS sudoers configuration
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copy:
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src: "etc/sudoers.d/cis"
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dest: "/etc/sudoers.d/cis"
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owner: root
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group: root
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mode: '0440'
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tags:
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- harden
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- name: Remove packages not allowed by CIS
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package:
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name: "{{ remove_packages }}"
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state: absent
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tags:
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- harden
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...
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