ansible-sshd/tests/tests_unsafe_options.yml
Jakub Jelen d10f2ada11
fix: use quote with command, shell and validate with variable (#298)
* robustness: quote test backup/restore file names

This avoids issues if file names are not safepaths.

* security: use quote with command, shell and validate with variable

Skip quotation only if variable is checked.

Add test suit to excercise some quote use cases.

* robustness: fail if systemd.unit could have something in need of quote

Ensure systemd.unit contents is robust. This disables possibility to
have something that needs to be quoted there. But as ansible lacks
proper way to quote systemd unit files (see man systemd.syntax, rules
are not shell rules), it is better to fail such configs. If you are
trying to do that, you are doing it wrong anyway or have malicious
intent.

Also ensure similar issue with sysctl.conf.

Issue can be seen with `tests_hostkeys_unsafe_path.yml`, when adding
following to role params:

       sshd_install_service: true
       sshd_config_file: "{{ ansible_facts.env.TMPDIR }}/sshd.d/foo.conf"
       sshd_binary: "{{ ansible_facts.env.TMPDIR }}/sshd"
       __sshd_runtime_directory: "{{ ansible_facts.env.TMPDIR }}/run"

* tests: Quote also the source filename

Signed-off-by: Jakub Jelen <jjelen@redhat.com>

* tests: Add more negative test cases

Signed-off-by: Jakub Jelen <jjelen@redhat.com>

* tests: Skip the test with unsafe TMPDIR as it does not work on CentOS8

Signed-off-by: Jakub Jelen <jjelen@redhat.com>

* Move the variable checks to separate file ...

... and explain better why this is problematic

Drops also the check for internal variables as the user should not
bother with these.

Signed-off-by: Jakub Jelen <jjelen@redhat.com>

---------

Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Co-authored-by: Markus Linnala <Markus.Linnala@knowit.fi>
2024-09-12 07:24:22 +01:00

93 lines
2.9 KiB
YAML

---
- name: Test quote with unsafe input
hosts: all
vars:
__sshd_test_backup_files:
- /etc/ssh/sshd_config
- /etc/ssh/sshd_config.d/00-ansible_system_role.conf
tasks:
- name: "Backup configuration files"
ansible.builtin.include_tasks: tasks/backup.yml
- name: Configure sshd with bad sysconfig configuration
block:
- name: Include the role
ansible.builtin.include_role:
name: ansible-sshd
vars:
sshd_skip_defaults: true
sshd_verify_hostkeys: []
sshd_sysconfig_use_strong_rng: "maybe yes"
register: role_result
- name: Unreachable task -- the role should have failed!
ansible.builtin.fail:
msg: UNREACH
rescue:
- name: Check that we failed in the role
ansible.builtin.assert:
that:
- ansible_failed_result.msg != 'UNREACH'
- not role_result.changed
msg: "Role has not failed when it should have with invalid inputs"
- name: Configure sshd with bad path to sshd binary
block:
- name: Include the role
ansible.builtin.include_role:
name: ansible-sshd
vars:
sshd_skip_defaults: true
sshd_verify_hostkeys: []
sshd_binary: "/usr/sbin/sshd binary"
register: role_result
- name: Unreachable task -- the role should have failed!
ansible.builtin.fail:
msg: UNREACH
rescue:
- name: Check that we failed in the role
ansible.builtin.assert:
that:
- ansible_failed_result.msg != 'UNREACH'
- not role_result.changed
msg: "Role has not failed when it should have with invalid inputs"
- name: Configure sshd with bad path sshd config
block:
- name: Include the role
ansible.builtin.include_role:
name: ansible-sshd
vars:
sshd_skip_defaults: true
sshd_verify_hostkeys: []
sshd_config_file: /etc/ssh/sshd.config.d/my fancy config
register: role_result
- name: Unreachable task -- the role should have failed!
ansible.builtin.fail:
msg: UNREACH
rescue:
- name: Check that we failed in the role
ansible.builtin.assert:
that:
- ansible_failed_result.msg != 'UNREACH'
- not role_result.changed
msg: "Role has not failed when it should have with invalid inputs"
- name: Make sure service is still running
ansible.builtin.service:
name: sshd
state: started
register: result
failed_when: result.changed
tags: tests::verify
when:
- not (ansible_facts['os_family'] == 'RedHat' and ansible_facts['distribution_major_version'] == '6')
- name: "Restore configuration files"
ansible.builtin.include_tasks: tasks/restore.yml