STIGQter 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 a delay of at least four seconds between logon prompts following a failed logon attempt.

DISA Rule

SV-270706r1068361_rule

Vulnerability Number

V-270706

Group Title

SRG-OS-000480-GPOS-00226

Rule Version

UBTU-24-300017

Severity

CAT III

CCI(s)

Weight

10

Fix Recommendation

Configure Ubuntu 24.04 LTS to enforce a delay of at least four seconds between logon prompts following a failed logon attempt.

Edit the file "/etc/pam.d/common-auth" and set the parameter "pam_faildelay" to a value of "4000000" or greater:

auth required pam_faildelay.so delay=4000000

Check Contents

Verify Ubuntu 24.04 LTS enforces a delay of at least four seconds between logon prompts following a failed logon attempt with the following command:

$ grep pam_faildelay /etc/pam.d/common-auth
auth required pam_faildelay.so delay=4000000

If the value for "delay" is not set to "4000000" or greater, the line is commented out, or is missing, this is a finding.

Vulnerability Number

V-270706

Documentable

False

Rule Version

UBTU-24-300017

Severity Override Guidance

Verify Ubuntu 24.04 LTS enforces a delay of at least four seconds between logon prompts following a failed logon attempt with the following command:

$ grep pam_faildelay /etc/pam.d/common-auth
auth required pam_faildelay.so delay=4000000

If the value for "delay" is not set to "4000000" or greater, the line is commented out, or is missing, this is a finding.

Check Content Reference

M

Target Key

5673