135 lines
4.0 KiB
YAML
135 lines
4.0 KiB
YAML
---
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# Copyright 2016, Rackspace US, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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- name: Check apparmor_status output
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command: apparmor_status
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register: apparmor_status_output
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check_mode: no
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changed_when: false
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failed_when: false
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when:
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- ansible_pkg_mgr in ['apt', 'zypper']
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tags:
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- high
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- V-71989
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# NOTE(mhayden): The systemd unit file for apparmor just calls an old SysV
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# init script and exits. It's not possible to ask systemd if apparmor is
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# running and if we tell systemd to start apparmor, it will tell us that it
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# started apparmor each time. This breaks idempotency and we check
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# systemd's status directly as an alternative.
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- name: Check if apparmor is running
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command: "systemctl status apparmor"
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register: systemctl_apparmor_status
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check_mode: no
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changed_when: false
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failed_when: false
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when:
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- ansible_pkg_mgr in ['apt', 'zypper']
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tags:
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- high
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- V-71989
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- name: Ensure AppArmor is enabled at boot time
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service:
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name: apparmor
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enabled: yes
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when:
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- ansible_pkg_mgr in ['apt', 'zypper']
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- security_rhel7_enable_linux_security_module | bool
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tags:
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- high
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- V-71989
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# NOTE(mhayden): Since the AppArmor systemd unit calls a SysV init script, the
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# unit will always say AppArmor is dead. This means that the following task
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# will always start the unit every time it runs (which breaks idempotency).
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- name: Ensure AppArmor is running
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service:
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name: apparmor
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state: started
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changed_when:
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- '"active (exited)" not in systemctl_apparmor_status.stdout'
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when:
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- ansible_pkg_mgr in ['apt', 'zypper']
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- security_rhel7_enable_linux_security_module | bool
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- not check_mode
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- '"apparmor filesystem is not mounted" not in apparmor_status_output.stderr'
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tags:
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- high
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- V-71989
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# NOTE(mhayden): The "changed_when" is required here because this task will
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# always show as changed when SELinux is completely disabled. It's not possible
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# to switch to permissive/enforcing in an online way when SELinux is completely
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# disabled at boot time.
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- name: Ensure SELinux is in enforcing mode on the next reboot
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selinux:
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state: enforcing
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policy: targeted
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register: selinux_status_change
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changed_when: selinux_status_change | changed and ansible_selinux.status != 'disabled'
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when:
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- ansible_os_family == "RedHat"
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- security_rhel7_enable_linux_security_module | bool
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tags:
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- high
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- V-71989
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- V-71991
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- name: Relabel files on next boot if SELinux mode changed
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file:
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path: /.autorelabel
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state: touch
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when:
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- ansible_os_family == "RedHat"
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- security_rhel7_enable_linux_security_module | bool
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- selinux_status_change is changed
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tags:
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- high
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- V-71989
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- V-71991
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# NOTE(mhayden): Ansible's find module doesn't support searching for files
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# based on SELinux contexts yet.
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- name: Check for unlabeled device files
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command: "find /dev -context '*unlabeled_t*'"
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register: unlabeled_devices
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changed_when: False
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check_mode: no
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when:
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- ansible_os_family == 'RedHat'
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- ansible_selinux.status == 'enabled'
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tags:
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- lsm
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- medium
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- V-72039
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- name: V-72039 - All system device files must be correctly labeled to prevent unauthorized modification.
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debug:
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msg: |
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Devices were found without SELinux labels:
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{% for device in unlabeled_devices.stdout_lines %}
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{{ device }}
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{% endfor %}
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when:
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- ansible_os_family == 'RedHat'
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- unlabeled_devices.stdout is defined
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- unlabeled_devices.stdout | length > 0
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tags:
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- lsm
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- medium
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- V-72039
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