openstack/ansible-hardening
Code Issues Proposed changes
ansible-hardening/doc/metadata/rhel6/V-38497.rst
Major Hayden e57593dfd4 Automate the STIG documentation 
With the upcoming changes to rebase onto the RHEL 7 STIG controls,
there needs to be a new solution for documentation that is easier
to manage and filter. This patch automates the generation of the STIG
control documentation in the following way:

* A Sphinx extension runs early in the doc build process that writes
  all of the individual STIG control docs as well as ToC pages.
* ToC pages are now sorted by severity, tag, and implementation status.
* A giant listing of controls is easier to navigate now.
* Docs are generated from metadata in the /doc/metadata directory. New
  documentation only needs to be added there. (Will explain this in
  the developer notes in a subsequent patch.)

Implements: blueprint security-rhel7-stig
Change-Id: I455af1121049f52193e98e2c9cb1ba5d4c292386
2016-09-09 14:43:30 +00:00

810 B
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---id: V-38497 status: implemented tag: misc ---

Ubuntu 14.04, Ubuntu 16.04, and CentOS 7 allow accounts with null passwords to authenticate via PAM by default. This STIG requires that those login attempts are blocked.

For Ubuntu, the nullok_secure option will be removed from /etc/pam.d /common-auth.

For CentOS, the nullok option will be removed from /etc/pam.d/system- auth.

The effects of the change are immediate and no service restarts are required.

Deployers can opt-out of this change by adjusting an Ansible variable:

security_pam_remove_nullok: no

Setting the variable to yes (the default) will cause the Ansible tasks to remove the nullok_secure parameter while setting the variable to no will leave the PAM configuration unchanged.