RHEL9-CIS/tasks/section_6/cis_6.1.x.yml

---

- name: "6.1.1 | PATCH | Ensure permissions on /etc/passwd are configured"
  ansible.builtin.file:
      path: /etc/passwd
      owner: root
      group: root
      mode: 0644
  when:
      - rhel9cis_rule_6_1_1
  tags:
      - level1-server
      - level1-workstation
      - patch
      - permissions
      - rule_6.1.1

- name: "6.1.2 | PATCH | Ensure permissions on /etc/passwd- are configured"
  ansible.builtin.file:
      path: /etc/passwd-
      owner: root
      group: root
      mode: 0644
  when:
      - rhel9cis_rule_6_1_2
  tags:
      - level1-server
      - level1-workstation
      - patch
      - permissions
      - rule_6.1.2

- name: "6.1.3 | PATCH | Ensure permissions on /etc/group are configured"
  ansible.builtin.file:
      path: /etc/group-
      owner: root
      group: root
      mode: 0644
  when:
      - rhel9cis_rule_6_1_3
  tags:
      - level1-server
      - level1-workstation
      - patch
      - permissions
      - rule_6.1.3

- name: "6.1.4 | PATCH | Ensure permissions on /etc/group- are configured"
  ansible.builtin.file:
      path: /etc/group-
      owner: root
      group: root
      mode: 0644
  when:
      - rhel9cis_rule_6_1_4
  tags:
      - level1-server
      - level1-workstation
      - patch
      - permissionss
      - rule_6.1.4

- name: "6.1.5 | PATCH | Ensure permissions on /etc/shadow are configured"
  ansible.builtin.file:
      path: /etc/shadow
      owner: root
      group: root
      mode: 0000
  when:
      - rhel9cis_rule_6_1_5
  tags:
      - level1-server
      - level1-workstation
      - patch
      - permissions
      - rule_6.1.5

- name: "6.1.6 | PATCH | Ensure permissions on /etc/shadow- are configured"
  ansible.builtin.file:
      path: /etc/shadow-
      owner: root
      group: root
      mode: 0000
  when:
      - rhel9cis_rule_6_1_6
  tags:
      - level1-server
      - level1-workstation
      - patch
      - permissions
      - rule_6.1.6

- name: "6.1.7 | PATCH | Ensure permissions on /etc/gshadow are configured"
  ansible.builtin.file:
      path: /etc/gshadow
      owner: root
      group: root
      mode: 0000
  when:
      - rhel9cis_rule_6_1_7
  tags:
      - level1-server
      - level1-workstation
      - patch
      - permissions
      - rule_6.1.7

- name: "6.1.8 | PATCH | Ensure permissions on /etc/gshadow- are configured"
  ansible.builtin.file:
      path: /etc/gshadow-
      owner: root
      group: root
      mode: 0000
  when:
      - rhel9cis_rule_6_1_8
  tags:
      - level1-server
      - level1-workstation
      - patch
      - permissions
      - rule_6.1.10

- name: "6.1.9 | PATCH | Ensure no world writable files exist"
  block:
      - name: "6.1.9 | AUDIT | Ensure no world writable files exist | Get list of world-writable files"
        ansible.builtin.shell: df --local -P | awk {'if (NR!=1) print $6'} | xargs -I '{}' find '{}' -xdev -type f -perm -0002
        failed_when: false
        changed_when: false
        register: rhel_09_6_1_9_perms_results

      - name: "6.1.9 | PATCH | Ensure no world writable files exist | Adjust world-writable files if they exist (Configurable)"
        ansible.builtin.file:
            path: '{{ item }}'
            mode: o-w
            state: touch
        loop: "{{ rhel_09_6_1_9_perms_results.stdout_lines }}"
        when:
            - rhel_09_6_1_9_perms_results.stdout_lines is defined
            - rhel9cis_no_world_write_adjust
  when:
      - rhel9cis_rule_6_1_9
  tags:
      - level1-server
      - level1-workstation
      - patch
      - files
      - permissions
      - rule_6.1.9

- name: "6.1.10 | AUDIT | Ensure no unowned files or directories exist"
  block:
      - name: "6.1.10 | AUDIT | Ensure no unowned files or directories exist | Finding all unowned files or directories"
        ansible.builtin.shell: find "{{ item.mount }}" -xdev -nouser
        changed_when: false
        failed_when: false
        check_mode: false
        register: rhel_09_6_1_10_audit
        loop: "{{ ansible_facts.mounts }}"
        loop_control:
            label: "{{ item.mount }}"
        when:
            - item['device'].startswith('/dev')
            - not 'bind' in item['options']

      - name: "6.1.10 | AUDIT | Ensure no unowned files or directories exist | set fact"
        ansible.builtin.set_fact:
            rhel_09_6_1_10_unowned_files_found: true
        loop: "{{ rhel_09_6_1_10_audit.results }}"
        when:
            - item | length > 0
            - item.stdout is defined  # skipped items are part of results list, but don't have the registered module properties
            - item.stdout | length > 0

      - name: "6.1.10 | AUDIT | Ensure no unowned files or directories exist | Displaying any unowned files or directories"
        ansible.builtin.debug:
            msg: "Warning!! Missing owner on items in {{ rhel_09_6_1_10_audit | json_query('results[*].stdout_lines[*]') | flatten }}"  # noqa jinja[invalid]
        when: rhel_09_6_1_10_unowned_files_found

      - name: "6.1.10 | AUDIT | Ensure no unowned files or directories exist | warning"
        ansible.builtin.import_tasks:
            file: warning_facts.yaml
        vars:
            warn_control_id: '6.1.10'
        when: rhel_09_6_1_10_unowned_files_found
  vars:
      rhel_09_6_1_10_unowned_files_found: false
  when:
      - rhel9cis_rule_6_1_10
  tags:
      - level1-server
      - level1-workstation
      - audit
      - files
      - permissions
      - rule_6.1.10

- name: "6.1.11 | AUDIT | Ensure no ungrouped files or directories exist"
  block:
      - name: "6.1.11 | AUDIT | Ensure no ungrouped files or directories exist | Finding all ungrouped files or directories"
        ansible.builtin.shell: find "{{ item.mount }}" -xdev -nogroup
        check_mode: false
        failed_when: false
        changed_when: false
        register: rhel_09_6_1_11_audit
        loop: "{{ ansible_facts.mounts }}"
        loop_control:
            label: "{{ item.mount }}"
        when:
            - item['device'].startswith('/dev')
            - not 'bind' in item['options']

      - name: "6.1.11 | AUDIT | Ensure no ungrouped files or directories exist | set fact"
        ansible.builtin.set_fact:
            rhel_09_6_1_11_ungrouped_files_found: true
        loop: "{{ rhel_09_6_1_11_audit.results }}"
        when:
            - item | length > 0
            - item.stdout is defined  # skipped items are part of results list, but don't have the registered module properties
            - item.stdout | length > 0

      - name: "6.1.11 | AUDIT | Ensure no ungrouped files or directories exist | Displaying all ungrouped files or directories"
        ansible.builtin.debug:
            msg: "Warning!! Missing group on items in {{ rhel_09_6_1_11_audit | json_query('results[*].stdout_lines[*]') | flatten }}"  # noqa jinja[invalid]
        when: rhel_09_6_1_11_ungrouped_files_found

      - name: "6.1.11 | AUDIT | Ensure no ungrouped files or directories exist | warning"
        ansible.builtin.import_tasks:
            file: warning_facts.yaml
        vars:
            warn_control_id: '6.1.11'
        when: rhel_09_6_1_11_ungrouped_files_found
  vars:
      - rhel_09_6_1_11_ungrouped_files_found: false
  when:
      - rhel9cis_rule_6_1_11
  tags:
      - level1-server
      - level1-workstation
      - audit
      - files
      - permissions
      - rule_6.1.11

- name: "6.1.12 | PATCH | Ensure sticky bit is set on all world-writable directories"
  ansible.builtin.shell: df --local -P | awk {'if (NR!=1) print $6'} | xargs -I '{}' find '{}' -xdev -type d -perm -0002 2>/dev/null | xargs chmod a+t
  changed_when: false
  failed_when: false
  when:
      - rhel9cis_rule_6_1_12
  tags:
      - level1-server
      - level1-workstation
      - patch
      - stickybits
      - permissons
      - rule_1.1.21

- name: "6.1.13 | AUDIT | Audit SUID executables"
  block:
      - name: "6.1.13 | AUDIT | Audit SUID executables | Find all SUID executables"
        ansible.builtin.shell: df {{ item.mount }} -P | awk {'if (NR!=1) print $6'} | xargs -I '{}' find '{}' -xdev -type f -perm -4000
        failed_when: false
        changed_when: false
        register: rhel_09_6_1_13_suid_perms
        loop: "{{ ansible_facts.mounts }}"
        loop_control:
            label: "{{ item.mount }}"

      - name: "6.1.13 | AUDIT | Audit SUID executables | set fact SUID executables"
        ansible.builtin.set_fact:
            rhel9_6_1_13_suid_found: true
        loop: "{{ rhel_09_6_1_13_suid_perms.results }}"
        when:
            - item | length > 0
            - item.stdout is defined  # skipped items are part of results list, but don't have the registered module properties
            - item.stdout | length > 0

      - name: "6.1.13 | AUDIT | Audit SUID executables | Alert SUID executables exist"
        ansible.builtin.debug:
            msg: "Warning!! SUID set on items in {{ rhel_09_6_1_13_suid_perms | json_query('results[*].stdout_lines[*]') | flatten }}"  # noqa jinja[invalid]
        when: rhel9_6_1_13_suid_found

      - name: "6.1.13 | AUDIT | Audit SUID executables | Alert SUID executables exist | warning"
        ansible.builtin.import_tasks:
            file: warning_facts.yaml
        vars:
            warn_control_id: '6.1.13'
        when: rhel9_6_1_13_suid_found
  vars:
      rhel9_6_1_13_suid_found: false
  when:
      - rhel9cis_rule_6_1_13
  tags:
      - level1-server
      - level1-workstation
      - manual
      - audit
      - files
      - rule_6.1.13

- name: "6.1.14 | AUDIT | Audit SGID executables"
  block:
      - name: "6.1.14 | AUDIT | Audit SGID executables | Find all SGID executables"
        ansible.builtin.shell: df {{ item.mount }} -P | awk {'if (NR!=1) print $6'} | xargs -I '{}' find '{}' -xdev -type f -perm -2000
        failed_when: false
        changed_when: false
        register: rhel_09_6_1_14_sgid_perms
        loop: "{{ ansible_facts.mounts }}"
        loop_control:
            label: "{{ item.mount }}"

      - name: "6.1.14 | AUDIT | Audit SGID executables | Set fact SGID executables"
        ansible.builtin.set_fact:
            rhel9_6_1_14_sgid_found: true
        loop: "{{ rhel_09_6_1_14_sgid_perms.results }}"
        when:
            - item | length > 0
            - item.stdout is defined  # skipped items are part of results list, but don't have the registered module properties
            - item.stdout | length > 0

      - name: "6.1.14 | AUDIT | Audit SGID executables | Alert SGID executables exist"
        ansible.builtin.debug:
            msg: "Warning!! SGID set on items in {{ rhel_09_6_1_14_sgid_perms | json_query('results[*].stdout_lines[*]') | flatten }}"  # noqa jinja[invalid]
        when: rhel9_6_1_14_sgid_found

      - name: "6.1.14 | AUDIT | Audit SGID executables| warning"
        ansible.builtin.import_tasks:
            file: warning_facts.yaml
        vars:
            warn_control_id: '6.1.14'
        when: rhel9_6_1_14_sgid_found
  vars:
      rhel9_6_1_14_sgid_found: false
  when:
      - rhel9cis_rule_6_1_14
  tags:
      - level1-server
      - level1-workstation
      - manual
      - audit
      - files
      - rule_6.1.14

- name: "6.1.15 | AUDIT | Audit system file permissions"
  block:
      - name: "6.1.15 | AUDIT | Audit system file permissions | Audit the packages"
        ansible.builtin.shell: rpm -Va --nomtime --nosize --nomd5 --nolinkto
        changed_when: false
        failed_when: false
        register: rhel9cis_6_1_15_packages_rpm

      - name: "6.1.15 | AUDIT | Audit system file permissions | Create list and warning"
        block:
            - name: "6.1.15 | AUDIT | Audit system file permissions | Add file discrepancy list to system"
              ansible.builtin.copy:
                  dest: "{{ rhel9cis_rpm_audit_file }}"  # noqa template-instead-of-copy
                  content: "{{ rhel9cis_6_1_15_packages_rpm.stdout }}"
                  owner: root
                  group: root
                  mode: 0640

            - name: "6.1.15 | AUDIT | Audit system file permissions | Message out alert for package descrepancies"
              ansible.builtin.debug:
                  msg: |
                     "Warning!! You have some package descrepancies issues.
                      The file list can be found in {{ rhel9cis_rpm_audit_file }}"

            - name: "6.1.15 | AUDIT | Audit system file permissions | warning count"
              ansible.builtin.import_tasks:
            file: warning_facts.yaml
              vars:
                  warn_control_id: '6.1.15'
              when: rhel9cis_6_1_15_packages_rpm.stdout|length > 0
  when:
      - rhel9cis_rule_6_1_15
  tags:
      - level2-server
      - level2-workstation
      - manual
      - audit
      - permissions
      - rule_6.1.15