Nutanix AOS must enforce 24 hours/1 day as the minimum password lifetime.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-254218	NUTX-OS-001340	SV-254218r982188_rule		Medium

Description
Enforcing a minimum password lifetime helps to prevent repeated password changes to defeat the password reuse or history enforcement requirement. If users are allowed to immediately and continually change their password, then the password could be repeatedly changed in a short period of time to defeat the organization's policy regarding password reuse.

STIG	Date
Nutanix AOS 5.20.x OS Security Technical Implementation Guide	2024-06-18

Details

Check Text ( C-57703r846740_chk )
Confirm Nutanix AOS is configured to enforce 24 hour/1 day minimum password lifetime. $ sudo grep -i pass_min_days /etc/login.defs PASS_MIN_DAYS 1 If the "PASS_MIN_DAYS" parameter value is not "1" or greater, or is commented out, this is a finding. $ sudo awk -F: '$4 < 1 {print $1 " " $4}' /etc/shadow If any results are returned that are not associated with a system account, this is a finding.

Check Text ( C-57703r846740_chk )

Confirm Nutanix AOS is configured to enforce 24 hour/1 day minimum password lifetime.

$ sudo grep -i pass_min_days /etc/login.defs
PASS_MIN_DAYS 1

If the "PASS_MIN_DAYS" parameter value is not "1" or greater, or is commented out, this is a finding.

$ sudo awk -F: '$4 < 1 {print $1 " " $4}' /etc/shadow

If any results are returned that are not associated with a system account, this is a finding.

Fix Text (F-57654r846741_fix)
Configure the password minimum age by running the following command: $ sudo salt-call state.sls security/CVM/pamCVM