Canonical Ubuntu 22.04 LTS Security Technical Implementation Guide

The Canonical Ubuntu 22.04 LTS Security Technical Implementation Guide (V2 R10) has 191 STIG checks. New to STIG checklists? Read What is a STIG checklist?, CKL vs CKLB, and STIG vs SCAP benchmark.

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Severity

Version

V2 · R10

CurrentPublished Wed Sep 30 2026

Ubuntu 22.04 LTS must prevent the use of dictionary words for passwords.

Canonical Ubuntu 22.04 LTS Security Technical Implementation Guide

Assessment Title

Rule Text

Ubuntu 22.04 LTS must prevent the use of dictionary words for passwords.

Description

Discussion Text

If Ubuntu 22.04 LTS allows the user to select passwords based on dictionary words, then this increases the chances of password compromise by increasing the opportunity for successful guesses and brute-force attacks.

New to STIG checklists? Read What is a STIG checklist? and CKL vs CKLB.

Objective

V-260564

Rule

SV-260564r991587_rule

Severity

medium

Rule Version

UBTU-22-611030

Documentable

false

IA Controls

NIST SP 800-53

Rev 5

Assessment Procedure

Check Text

Verify Ubuntu 22.04 LTS prevents the use of dictionary words for passwords by using the following command: 
 
     $ grep -i dictcheck /etc/security/pwquality.conf 
     dictcheck = 1  
  
If "dictcheck" is not set to "1", is commented out, or is missing, this is a finding.

Implementation Procedure

Fix Text

Configure Ubuntu 22.04 LTS to prevent the use of dictionary words for passwords. 
  
Add or modify the following line in the "/etc/security/pwquality.conf" file: 
  
dictcheck = 1

STIG check 94 of 191 in the Canonical Ubuntu 22.04 LTS STIG checklist

← Previous · V-260563Ubuntu 22.04 LTS must enforce password complexity by requiring that at least one special character be used.Next · V-260565 →Ubuntu 22.04 LTS must enforce a minimum 15-character password length.