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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-219179 UBTU-18-010107 SV-219179r508662_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 18.04 LTS Security Technical Implementation Guide 2020-09-10

Details

Check Text ( C-20904r304865_chk )
Verify that 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 commented out, this is a finding.
Fix Text (F-20903r304866_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