openstack
/
ansible-hardening
Code Issues Proposed changes

Change PermitRootLogin to allow alternate options 

PermitRootLogin can be 'yes', 'no', 'without-password',
'prohibit-password' or 'forced-commands-only'.
This patch changes the functionality to ensure that
security_sshd_permit_root_login is one of the above settings - if so, it
will use that value.

Due to the way Ansible handles "no" and "yes", we have to check if the
value is "False" (string equivalent for boolean no), and if so output
"no", otherwise output the string (which would be one of the above
options).

Previously, we could only set this value to 'no'.

Change-Id: I5ee5ff6abc4578d17d4b23d8a2fa1648508ceeed
This commit is contained in:
Andy McCrae 2017-11-06 15:04:01 +00:00
parent ff73470848
commit f32cb3c081
4 changed files with 19 additions and 4 deletions
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2
defaults/main.yml
View File

@ -325,7 +325,7 @@ security_sshd_client_alive_interval: 600 # V-72237
security_sshd_client_alive_count_max: 0 # V-72241
# Print the last login for a user when they log in over ssh.
security_sshd_print_last_log: yes # V-72245
# Permit direct root logins
# Permit direct root logins ('yes', 'no', 'without-password', 'prohibit-password', 'forced-commands-only')
security_sshd_permit_root_login: no # V-72247
# Disallow authentication using known hosts authentication.
security_sshd_disallow_known_hosts_auth: yes # V-72249 / V-72239

4
doc/metadata/rhel7/V-72247.rst
View File

@ -7,7 +7,9 @@ tag: sshd
The ``PermitRootLogin`` configuration is set to ``no`` in
``/etc/ssh/sshd_config`` and sshd is restarted.
Deployers can opt out of this change by setting the following Ansible variable:
Deployers can select another setting for PermitRootLogin, from the available
options ``without-password``, ``prohibit-password``, ``forced-commands-only``,
``yes``, or ``no`` by setting the following variable:
.. code-block:: yaml

8
releasenotes/notes/permitrootlogin_options-a62e33ccc4a69657.yaml Normal file
View File

@ -0,0 +1,8 @@
---
features:
- The ``security_sshd_permit_root_login`` setting can
now be set to change the ``PermitRootLogin`` setting
in ``/etc/ssh/sshd_config`` to any of the possible
options. Set ``security_sshd_permit_root_login`` to
one of ``without-password``, ``prohibit-password``,
``forced-commands-only``, ``yes`` or ``no``.

9
templates/sshd_config_block.j2
View File

@ -22,9 +22,14 @@ ClientAliveCountMax {{ security_sshd_client_alive_count_max }}
# V-72245
PrintLastLog yes
{% endif %}
{% if not (security_sshd_permit_root_login | bool) %}
{% if security_sshd_permit_root_login | string in ['False', 'True', 'without-password', 'prohibit-password', 'forced-commands-only', 'no', 'yes' ] %}
{% if security_sshd_permit_root_login | string in ['False', 'True'] %}
{% set _security_sshd_permit_root_login = ((security_sshd_permit_root_login | bool) | ternary('yes','no')) %}
{% else %}
{% set _security_sshd_permit_root_login = security_sshd_permit_root_login %}
{% endif %}
# V-72247
PermitRootLogin no
PermitRootLogin {{ _security_sshd_permit_root_login }}
{% endif %}
{% if security_sshd_disallow_known_hosts_auth | bool %}
# V-72249 / V-72239