TMA-WIN10-1.2.2

Ensure 'Account lockout threshold' is set to '5 or fewer invalid logon attempt(s), but not 0'

HighLevel 1Automatedwindows

Description

This policy setting determines the number of failed logon attempts before the account is locked. Setting this policy to 0 does not conform to the benchmark as doing so disables the account lockout threshold. The recommended state for this setting is: 5 or fewer invalid logon attempt(s), but not 0. Note: Password Policy settings (section 1.1) and Account Lockout Policy settings (section 1.2) must be applied via the Default Domain Policy GPO in order to be globally in effect on domain user accounts as their default behavior. If these settings are configured in another GPO, they will only affect

How it is checked

Audit method: Shell command

shell

$f = Join-Path $env:TEMP ('tmaegis-' + [guid]::NewGuid().ToString() + '.inf'); secedit /export /cfg $f /areas SECURITYPOLICY USER_RIGHTS /quiet | Out-Null; $c = Get-Content $f -ErrorAction SilentlyContinue; Remove-Item $f -Force -ErrorAction SilentlyContinue; $line = $c | Where-Object { $_ -match '^\s*LockoutBadCount\s*=' } | Select-Object -First 1; $v = if ($line) { ($line -split '=', 2)[1].Trim().Trim('"') } else { $null }; if (($null -ne $v -and [int64]$v -le 5 -and [int64]$v -ne 0)) { 'compliant' } else { 'non-compliant: ' + $v }

Expected output: compliant

How it is fixed

Fix method: Guidance or infrastructure patch

Set through Group Policy (domain policy for domain members): Computer Configuration\Policies\Windows Settings\Security Settings\Account Policies\Account Lockout Policy\Account lockout threshold

Properties

Operating systems: windows-10
Tags: cis-convertedseceditwindows
Reference: CIS Microsoft Windows 10 Enterprise Benchmark v4.0.0 - 1.2.2

Check this host

Run this on a machine you are allowed to audit. The scan is read-only.

shell

tmaegis scan --target windows