The Ubuntu operating system must enforce a 60-day maximum password lifetime restriction. Passwords for new users must have a 60-day maximum password lifetime restriction.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-238203	UBTU-20-010008	SV-238203r653784_rule		Low

Description
Any password, no matter how complex, can eventually be cracked. Therefore, passwords need to be changed periodically. If the operating system does not limit the lifetime of passwords and force users to change their passwords, there is the risk that the operating system passwords could be compromised.

STIG	Date
Canonical Ubuntu 20.04 LTS Security Technical Implementation Guide	2023-12-01

Details

Check Text ( C-41413r653782_chk )
Verify the Ubuntu operating system enforces a 60-day maximum password lifetime for new user accounts by running the following command: $ grep -i ^pass_max_days /etc/login.defs PASS_MAX_DAYS 60 If the "PASS_MAX_DAYS" parameter value is less than "60" or is commented out, this is a finding.

Fix Text (F-41372r653783_fix)
Configure the Ubuntu operating system to enforce a 60-day maximum password lifetime. Add or modify the following line in the "/etc/login.defs" file: PASS_MAX_DAYS 60