kubeasz/roles/os-harden/tasks/minimize_access.yml

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---
# Using a two-pass approach for checking directories in order to support symlinks.
- name: find directories for minimizing access
stat:
path: '{{ item }}'
register: minimize_access_directories
with_items:
- '/usr/local/sbin'
- '/usr/local/bin'
- '/usr/sbin'
- '/usr/bin'
- '/sbin'
- '/bin'
- '{{ os_env_extra_user_paths }}'
- name: minimize access
file:
path: '{{ item.stat.path }}'
mode: 'go-w'
recurse: 'yes'
when: item.stat.isdir
with_items: '{{ minimize_access_directories.results }}'
- name: change shadow ownership to root and mode to 0600 | os-02
file:
dest: '/etc/shadow'
owner: '{{ os_shadow_perms.owner }}'
group: '{{ os_shadow_perms.group }}'
mode: '{{ os_shadow_perms.mode }}'
- name: change passwd ownership to root and mode to 0644 | os-03
file:
dest: '/etc/passwd'
owner: '{{ os_passwd_perms.owner }}'
group: '{{ os_passwd_perms.group }}'
mode: '{{ os_passwd_perms.mode }}'
- name: change su-binary to only be accessible to user and group root
file:
dest: '/bin/su'
owner: 'root'
group: 'root'
mode: '0750'
when: os_security_users_allow != None