Red Hat Enterprise Linux 10 Security Technical Implementation Guide

The Red Hat Enterprise Linux 10 Security Technical Implementation Guide (V1 R3) has 435 STIG checks. New to STIG checklists? Read What is a STIG checklist?, CKL vs CKLB, and STIG vs SCAP benchmark.

Find STIG checks

435STIG checks

Search filters this STIG's checks locally. Separate terms must all match (use quotes for an exact phrase). A search you ran on the Search page carries over here.

Severity

Version

V1 · R3

CurrentPublished Wed Sep 30 2026

RHEL 10 must maintain an account lock until the locked account is released by an administrator.

Red Hat Enterprise Linux 10 Security Technical Implementation Guide

Assessment Title

Rule Text

RHEL 10 must maintain an account lock until the locked account is released by an administrator.

Description

Discussion Text

By limiting the number of failed login attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-forcing, is reduced. Limits are imposed by locking the account.

Satisfies: SRG-OS-000329-GPOS-00128, SRG-OS-000021-GPOS-00005

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

Objective

V-281197

Rule

SV-281197r1166543_rule

Severity

medium

Rule Version

RHEL-10-600425

Documentable

false

IA Controls

NIST SP 800-53

Rev 5

Assessment Procedure

Check Text

Verify RHEL 10 is configured to lock an account after three unsuccessful login attempts until released by an administrator with the following command:

$ sudo grep 'unlock_time =' /etc/security/faillock.conf
unlock_time = 0

If the "unlock_time" option is not set to "0", or the line is missing or commented out, this is a finding.

Implementation Procedure

Fix Text

Configure RHEL 10 to lock an account after three unsuccessful login attempts until released by an administrator with the following command:

$ authselect enable-feature with-faillock

Edit the "/etc/security/faillock.conf" file as follows:

unlock_time = 0

STIG check 265 of 435 in the Red Hat Enterprise Linux 10 STIG checklist

← Previous · V-281196RHEL 10 must automatically lock an account when three unsuccessful login attempts occur during a 15-minute time period.Next · V-281198 →RHEL 10 must ensure account lockouts persist.