STIGQter: STIG Summary: Canonical Ubuntu 24.04 LTS Security Technical Implementation Guide Version: 1 Release: 6 Benchmark Date: 01 Jul 2026:

Ubuntu 24.04 LTS must enforce password complexity by requiring that at least one numeric character be used.

DISA Rule

SV-270728r1066673_rule

Vulnerability Number

V-270728

Group Title

SRG-OS-000071-GPOS-00039

Rule Version

UBTU-24-400280

Severity

CAT II

CCI(s)

• CCI-004065 - For password-based authentication, employ automated tools to assist the user in selecting strong password authenticators.
• CCI-004066 - For password-based authentication, enforce organization-defined composition and complexity rules.

Weight

10

Fix Recommendation

Configure Ubuntu 24.04 LTS to enforce password complexity by requiring that at least one numeric character be used.

Add or update the "/etc/security/pwquality.conf" file to contain the "dcredit" parameter:

dcredit=-1

Check Contents

Verify Ubuntu 24.04 LTS enforces password complexity by requiring that at least one numeric character be used.

Determine if the field "dcredit" is set in the "/etc/security/pwquality.conf" file with the following command:

$ grep -i "dcredit" /etc/security/pwquality.conf
dcredit=-1

If the "dcredit" parameter is greater than "-1", is commented out, or is missing, this is a finding.

Vulnerability Number

V-270728

Documentable

False

Rule Version

UBTU-24-400280

Severity Override Guidance

Verify Ubuntu 24.04 LTS enforces password complexity by requiring that at least one numeric character be used.

Determine if the field "dcredit" is set in the "/etc/security/pwquality.conf" file with the following command:

$ grep -i "dcredit" /etc/security/pwquality.conf
dcredit=-1

If the "dcredit" parameter is greater than "-1", is commented out, or is missing, this is a finding.

Check Content Reference

M

Target Key

5673