Ubuntu 24.04 LTS must have the "libpam-pwquality" package installed.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-270661	UBTU-24-100600	SV-270661r1067175_rule		Medium

Description

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.

STIG	Date
Canonical Ubuntu 24.04 LTS Security Technical Implementation Guide	2025-05-16

Details

Check Text (C-74694r1067152_chk)

Verify Ubuntu 24.04 LTS has the "libpam-pwquality" package installed with the following command:

$ dpkg -l | grep libpam-pwquality
ii libpam-pwquality:amd64 1.4.5-3build1 amd64 PAM module to check password strength

If "libpam-pwquality" is not installed, this is a finding.

Fix Text (F-74595r1067153_fix)

Install the "pam_pwquality" package by using the following command:

$ sudo apt install -y libpam-pwquality