forked from ansible-lockdown/RHEL9-CIS
rewrite
Signed-off-by: Mark Bolwell <mark.bollyuk@gmail.com>
This commit is contained in:
Mark Bolwell
parent
b3a6f89ae0
commit
223254b5c9
1 changed files with 102 additions and 70 deletions
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@ -1,59 +1,91 @@
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---
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- name: "5.5.2 | PATCH | Ensure system accounts are secured"
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- name: "5.5.1 | PATCH | "
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block:
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- name: "5.5.2 | Ensure system accounts are secured | Set nologin"
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user:
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name: "{{ item.id }}"
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shell: /usr/sbin/nologin
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with_items:
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- "{{ rhel9cis_passwd }}"
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when:
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- item.id != "root"
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- item.id != "sync"
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- item.id != "shutdown"
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- item.id != "halt"
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- min_int_uid | int > item.gid
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- item.shell != " /bin/false"
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- item.shell != " /usr/sbin/nologin"
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- name: "5.5.1 | PATCH | Ensure password creation requirements are configured | Set pwquality config settings"
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blockinfile:
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path: /etc/security/pwquality.conf
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marker: "<!-- {mark} CIS 5.5.1 ANSIBLE MANAGED BLOCK -->"
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block: "{{ rhel9cis_pam_password }}"
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- name: "5.5.2 | PATCH | Ensure system accounts are secured | Lock accounts"
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user:
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name: "{{ item.id }}"
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password_lock: true
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with_items:
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- "{{ rhel9cis_passwd }}"
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when:
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- item.id != "halt"
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- item.id != "shutdown"
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- item.id != "sync"
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- item.id != "root"
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- min_int_uid | int > item.gid
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- item.shell != " /bin/false"
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- item.shell != " /usr/sbin/nologin"
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- name: "5.5.1 | PATCH | Ensure password creation requirements are configured | Set system-auth retry settings"
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lineinfile:
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dest: /etc/pam.d/system-auth
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state: present
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regexp: '^password\s*requisite\s*pam_pwquality.so'
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line: "password requisite pam_pwquality.so try_first_pass local_users_only enforce_for_root retry=3"
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insertbefore: '^#?password ?'
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- name: "5.5.1 | PATCH | Ensure password creation requirements are configured | Set system-auth retry settings"
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lineinfile:
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dest: /etc/pam.d/password-auth
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state: present
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regexp: '^password\s*requisite\s*pam_pwquality.so'
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line: "password requisite pam_pwquality.so try_first_pass local_users_only enforce_for_root retry=3"
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insertbefore: '^#?password ?'
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when:
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- rhel9cis_rule_5_5_2
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- rhel9cis_rule_5_5_1
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tags:
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- level1-server
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- level1-workstation
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- patch
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- rule_5.5.2
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- rule_5.5.1
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- name: "5.5.3 | PATCH | Ensure default user shell timeout is 900 seconds or less"
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blockinfile:
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create: yes
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mode: 0644
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dest: "{{ item.dest }}"
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state: "{{ item.state }}"
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marker: "# {mark} ANSIBLE MANAGED"
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block: |
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# Set session timeout - CIS ID RHEL-08-5.4.5
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TMOUT={{ rhel9cis_shell_session_timeout.timeout }}
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export TMOUT
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readonly TMOUT
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- name: "5.5.2 | PATCH | Ensure system accounts are secured | pre RHEL8.2"
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block:
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- name: "5.5.2 | PATCH | Ensure lockout for failed password attempts is configured | pre RHEL8.2 | Add deny count and unlock time for preauth"
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lineinfile:
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dest: /etc/pam.d/{{ item }}
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state: present
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regexp: '^auth\s*required\s*pam_faillock.so preauth'
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line: "auth required pam_faillock.so preauth silent deny={{ rhel9cis_pam_faillock.attempts }}{{ (rhel9cis_pam_faillock.fail_for_root) | ternary(' even_deny_root ',' ') }}unlock_time={{ rhel9cis_pam_faillock.unlock_time }}"
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insertafter: '^#?auth ?'
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with_items:
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- "system-auth"
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- "password-auth"
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- name: "5.5.2 | PATCH | Ensure lockout for failed password attempts is configured | pre RHEL8.2 | Add deny count and unlock times for authfail"
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lineinfile:
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dest: /etc/pam.d/{{ item }}
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state: present
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regexp: '^auth\s*required\s*pam_faillock.so authfail'
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line: "auth required pam_faillock.so authfail deny={{ rhel9cis_pam_faillock.attempts }}{{ (rhel9cis_pam_faillock.fail_for_root) | ternary(' even_deny_root ',' ') }}unlock_time={{ rhel9cis_pam_faillock.unlock_time }}"
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insertafter: '^#?auth ?'
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with_items:
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- "system-auth"
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- "password-auth"
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when:
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- ansible_distribution_version <= "8.1"
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- rhel9cis_rule_5_5_2
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- name: "5.5.2 | PATCH | Ensure system accounts are secured | RHEL8.2+ "
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lineinfile:
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dest: /etc/security/faillock.conf
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state: present
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regexp: "{{ item.regexp }}"
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line: "{{ item.line }}"
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with_items:
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- { dest: "{{ rhel9cis_shell_session_timeout.file }}", state: present }
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- { dest: /etc/profile, state: "{{ (rhel9cis_shell_session_timeout.file == '/etc/profile') | ternary('present', 'absent') }}" }
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- { regexp: '^\s*deny\s*=\s*[1-5]\b', line: 'deny = 5' }
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- { regexp: '^\s*unlock_time\s*=\s*(0|9[0-9][0-9]|[1-9][0-9][0-9][0-9]+)\b', line: 'unlock_time = 900' }
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when:
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- ansible_distribution_version >= "8.2"
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- rhel9cis_rule_5_5_2
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- name: "5.5.3 | PATCH | Ensure password reuse is limited"
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block:
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- name: "5.5.3 | PATCH | Ensure password reuse is limited | pwhistory"
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lineinfile:
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path: /etc/pam.d/system-auth
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state: present
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line: "password requisite pam_pwhistory.so try_first_pass local_users_only enforce_for_root retry=3 remember={{ rhel9cis_pam_faillock.remember }}"
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insertafter: '^password\s*requisite\s*pam_pwquality.so'
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- name: "5.5.3 | PATCH | Ensure password reuse is limited | pam_unix"
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replace:
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path: /etc/pam.d/system-auth
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regexp: '^password\s*sufficient\s*pam_unix.so.*$'
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#after: '^password\s*requisite\s*pam_pwhistory.so'
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replace: 'password sufficient pam_unix.so sha512 shadow try_first_pass use_authtok remember={{ rhel9cis_pam_faillock.remember }}'
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when:
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- rhel9cis_rule_5_5_3
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tags:
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@ -62,10 +94,31 @@
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- patch
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- rule_5.5.3
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- name: "5.5.4 | PATCH | Ensure default group for the root account is GID 0"
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command: usermod -g 0 root
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changed_when: false
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failed_when: false
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- name: "5.5.4 | PATCH | Ensure password hashing algorithm is SHA-512"
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block:
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- name: "5.5.4 | PATCH | Ensure password hashing algorithm is SHA-512 | libuser.conf"
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replace:
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path: /etc/libuser.conf
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regexp: '^crypt_style\s*=\s*.*$'
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replace: 'crypt_style = sha512'
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- name: "5.5.4 | PATCH | Ensure password hashing algorithm is SHA-512 | login.defs"
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replace:
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path: /etc/login.defs
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regexp: '^ENCRYPT_METHOD.*'
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replace: 'ENCRYPT_METHOD SHA512'
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- name: "5.5.4 | PATCH | Ensure password reuse is limited | pwhistory"
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replace:
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path: /etc/pam.d/password-auth
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regexp: '^password\s*sufficient\s*pam_unix.so.*$'
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replace: 'password sufficient pam_unix.so sha512 shadow try_first_pass use_authtok remember={{ rhel9cis_pam_faillock.remember }}'
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- name: "5.5.4 | PATCH | Ensure password reuse is limited | pam_unix"
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replace:
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path: /etc/pam.d/system-auth
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regexp: '^password\s*sufficient\s*pam_unix.so.*'
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replace: 'password sufficient pam_unix.so sha512 shadow try_first_pass use_authtok remember={{ rhel9cis_pam_faillock.remember }}'
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when:
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- rhel9cis_rule_5_5_4
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tags:
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@ -73,24 +126,3 @@
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- level1-workstation
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- patch
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- rule_5.5.4
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- name: "5.5.5 | PATCH | Ensure default user umask is 027 or more restrictive"
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block:
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- name: "5.5.5 | PATCH | Ensure default user umask is 027 or more restrictive | Set umask for /etc/bashrc"
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replace:
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path: /etc/bashrc
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regexp: '(^\s+umask) 0[012][0-6]'
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replace: '\1 027'
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- name: "5.5.5 | PATCH | Ensure default user umask is 027 or more restrictive | Set umask for /etc/profile"
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replace:
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path: /etc/profile
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regexp: '(^\s+umask) 0[012][0-6]'
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replace: '\1 027'
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when:
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- rhel9cis_rule_5_5_5
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tags:
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- level1-server
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- level1-workstation
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- patch
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- rule_5.5.5
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