f92f29d134
This patch adds tasks to set permissions on sshd public/private host key files. Documentation is included. Implements: blueprint security-rhel7-stig Change-Id: I45480882035a4682a2ef5036a1663eddccc953c5
110 lines
2.8 KiB
YAML
110 lines
2.8 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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# Adding additional sshd configuration options is usually easy, but if a
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# configuration file ends with certain configurations, like a "Match" stanza,
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# we need a blank line to separate those configurations from the ones that
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# are added by the security role. For that reason, we check for the existence
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# of a marker line here and add a marker line to the file if it doesn't exist.
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- name: Find first 'Match' line in sshd_config (if it exists)
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shell: "grep '^Match' /etc/ssh/sshd_config || echo 'EOF'"
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register: sshd_match_check
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changed_when: False
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check_mode: no
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tags:
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- always
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- sshd
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- name: Copy login warning banner
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copy:
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src: login_banner.txt
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dest: "{{ security_sshd_banner_file }}"
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owner: root
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group: root
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tags:
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- high
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- sshd
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- RHEL-07-010040
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- RHEL-07-040170
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- name: Adjust ssh server configuration based on STIG requirements
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blockinfile:
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dest: /etc/ssh/sshd_config
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state: present
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marker: "# {mark} MANAGED BY OPENSTACK-ANSIBLE-SECURITY"
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insertbefore: "{{ sshd_match_check.stdout_lines[0] }}"
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validate: '/usr/sbin/sshd -T -f %s'
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block: "{{ lookup('template', 'sshd_config_block.j2') }}"
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notify:
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- restart ssh
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tags:
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- high
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- sshd
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- RHEL-07-010270
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- RHEL-07-010440
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- RHEL-07-010441
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- RHEL-07-010442
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- RHEL-07-040110
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- RHEL-07-040170
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- RHEL-07-040190
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- RHEL-07-040191
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- RHEL-07-040301
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- RHEL-07-040310
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- RHEL-07-040332
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- RHEL-07-040334
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- RHEL-07-040334
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- RHEL-07-040540
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- RHEL-07-040590
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- RHEL-07-040620
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- RHEL-07-040690
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- RHEL-07-040700
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- RHEL-07-040670
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- RHEL-07-040680
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- name: Ensure sshd is running and enabled
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service:
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name: "{{ ssh_service }}"
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state: started
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enabled: yes
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when:
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- security_enable_sshd | bool
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tags:
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- medium
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- sshd
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- RHEL-07-040261
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- name: Public host key files must have mode 0644 or less
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file:
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path: "{{ item }}"
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mode: "u-xX,g-wxs,o-wxt"
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with_fileglob:
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- /etc/ssh/*.pub
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tags:
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- medium
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- sshd
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- RHEL-07-040640
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- name: Private host key files must have mode 0600 or less
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file:
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path: "{{ item }}"
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mode: "u-xX,g-rwxs,o-rwxt"
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with_fileglob:
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- /etc/ssh/*_key
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tags:
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- medium
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- sshd
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- RHEL-07-040650
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