STIGQter STIGQter: STIG Summary: Canonical Ubuntu 22.04 LTS Security Technical Implementation Guide Version: 2 Release: 9 Benchmark Date: 01 Jul 2026:

Ubuntu 22.04 LTS must enforce a delay of at least four seconds between logon prompts following a failed logon attempt.

DISA Rule

SV-260550r991588_rule

Vulnerability Number

V-260550

Group Title

SRG-OS-000480-GPOS-00226

Rule Version

UBTU-22-412010

Severity

CAT III

CCI(s)

Weight

10

Fix Recommendation

Configure Ubuntu 22.04 LTS to enforce a delay of at least four seconds between logon prompts following a failed logon attempt.

Add or modify the following line in the "/etc/pam.d/common-auth" file:

auth required pam_faildelay.so delay=4000000

Check Contents

Verify Ubuntu 22.04 LTS enforces a delay of at least four seconds between logon prompts following a failed logon attempt by using the following command:

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

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

Vulnerability Number

V-260550

Documentable

False

Rule Version

UBTU-22-412010

Severity Override Guidance

Verify Ubuntu 22.04 LTS enforces a delay of at least four seconds between logon prompts following a failed logon attempt by using the following command:

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

If "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

5594