Install pam_pwquality Package
Description
The libpam-pwquality package can be installed with the following command:
$ apt-get install libpam-pwquality
Rationale
Use of a complex password helps to increase the time and resources required
to compromise the password. Password complexity, or strength, is a measure
of the effectiveness of a password in resisting attempts at guessing and
brute-force attacks. “pwquality” enforces complex password construction
configuration and has the ability to limit brute-force attacks on the system.
Shell script
The following script can be run on the host to remediate the issue.
# Remediation is applicable only in certain platforms
if dpkg-query --show --showformat='${db:Status-Status}\n' 'libpam-runtime' 2>/dev/null | grep -q installed; then
DEBIAN\_FRONTEND=noninteractive apt-get install -y "libpam-pwquality"
else
>&2 echo 'Remediation is not applicable, nothing was done'
fi
Ansible playbook
The following playbook can be run with Ansible to remediate the issue.
- name: Gather the package facts
package\_facts:
manager: auto
tags:
- DISA-STIG-UBTU-20-010057
- enable\_strategy
- low\_complexity
- low\_disruption
- medium\_severity
- no\_reboot\_needed
- package\_pam\_pwquality\_installed
- name: Ensure libpam-pwquality is installed
package:
name: libpam-pwquality
state: present
when: '"libpam-runtime" in ansible\_facts.packages'
tags:
- DISA-STIG-UBTU-20-010057
- enable\_strategy
- low\_complexity
- low\_disruption
- medium\_severity
- no\_reboot\_needed
- package\_pam\_pwquality\_installed
