STIGQter STIGQter: STIG Summary: Red Hat Enterprise Linux 9 Security Technical Implementation Guide Version: 2 Release: 9 Benchmark Date: 01 Jul 2026:

RHEL 9 must enforce a delay of at least four seconds between logon prompts following a failed logon attempt.

DISA Rule

SV-258071r991588_rule

Vulnerability Number

V-258071

Group Title

SRG-OS-000480-GPOS-00226

Rule Version

RHEL-09-412050

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Configure the RHEL 9 to enforce a delay of at least four seconds between logon prompts following a failed console logon attempt.

Modify the "/etc/login.defs" file to set the "FAIL_DELAY" parameter to 4 or greater:

FAIL_DELAY 4

Check Contents

Verify RHEL 9 enforces a delay of at least four seconds between console logon prompts following a failed logon attempt with the following command:

$ grep -i fail_delay /etc/login.defs

FAIL_DELAY 4

If the value of "FAIL_DELAY" is not set to "4" or greater, or the line is commented out, this is a finding.

Vulnerability Number

V-258071

Documentable

False

Rule Version

RHEL-09-412050

Severity Override Guidance

Verify RHEL 9 enforces a delay of at least four seconds between console logon prompts following a failed logon attempt with the following command:

$ grep -i fail_delay /etc/login.defs

FAIL_DELAY 4

If the value of "FAIL_DELAY" is not set to "4" or greater, or the line is commented out, this is a finding.

Check Content Reference

M

Target Key

5551