Oracle Linux 9 Security Technical Implementation Guide

The Oracle Linux 9 Security Technical Implementation Guide (V1 R7) has 450 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

V1 · R7

CurrentPublished Wed Sep 30 2026

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

Oracle Linux 9 Security Technical Implementation Guide

Assessment Title

Rule Text

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

Description

Discussion Text

Increasing the time between a failed authentication attempt and reprompting to enter credentials helps to slow a single-threaded brute force attack.

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

Objective

V-271850

Rule

SV-271850r1092262_rule

Severity

medium

Rule Version

OL09-00-003070

Documentable

false

IA Controls

NIST SP 800-53

Rev 5

Assessment Procedure

Check Text

Verify that OL 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.

Implementation Procedure

Fix Text

Configure the OL 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

STIG check 408 of 450 in the Oracle Linux 9 STIG checklist

← Previous · V-271849OL 9 must disable account identifiers (individuals, groups, roles, and devices) after 35 days of inactivity.Next · V-271851 →OL 9 remote access methods must be monitored.