L1 BIO 12.06.01 CIS Windows - Quality deferral

Intune: Defer Quality Updates (0 Days Recommended)

📅 2025-10-30
•
⏱️ 2 minuten lezen
•
🔴 Must-Have

💼 Management Samenvatting

Defer quality updates 0 days (NO deferral) - security patches install IMMEDIATELY (deferral = extended vulnerability window).

Aanbeveling
IMPLEMENT IMMEDIATELY
Risico zonder
Critical
Risk Score
10/10
Implementatie
2u (tech: 1u)
Van toepassing op:
✓ Windows 10
✓ Windows 11

Quality updates = security patches: Monthly: Patch Tuesday (second Tuesday) - critical vulnerability fixes, Content: PrintNightmare, BlueKeep, EternalBlue patches, Urgency: Exploits published HOURS after disclosure (attackers scan for vulnerable systems). Deferral risk: 7-day deferral = 7 days vulnerable (exploit window), 30-day deferral = MONTH vulnerable (ransomware feast). CIS/Microsoft: 0 days deferral (immediate deployment) - security > stability concerns.

PowerShell Modules Vereist
Primary API: Microsoft Graph API
Connection: Connect-MgGraph
Required Modules: Microsoft.Graph.DeviceManagement

Implementatie

0-day quality deferral: Policy: Defer quality updates: 0 days, Effect: Security patches deploy ASAP (next check-in - typically hours), No delay: Critical CVE → patch released Tuesday → deployed Tuesday/Wednesday, Pilot testing: SKIP for quality (too urgent - deploy immediately).

Vereisten

  1. Intune subscription
  2. Windows 10/11
  3. Auto-updates enabled
  4. Active hours: Non-disruptive restart times

Implementatie

Intune: Windows Update ring → Quality update deferral: 0 days (immediate). Feature deferral: 180 days (testing OK). Active hours: 9 AM - 5 PM.

Compliance

CIS Windows Benchmark L1 (0 days), Microsoft Security Baseline, BIO 12.06, NIS2 Art. 21, NIST SI-2.

Monitoring

Gebruik PowerShell-script windows-update-defer-quality.ps1 (functie Invoke-Monitoring) – Controleren.

Remediatie

Gebruik PowerShell-script windows-update-defer-quality.ps1 (functie Invoke-Remediation) – Herstellen.

Compliance & Frameworks

Automation

Gebruik het onderstaande PowerShell script om deze security control te monitoren en te implementeren. Het script bevat functies voor zowel monitoring (-Monitoring) als remediation (-Remediation).

PowerShell
<# .SYNOPSIS Intune Update Management: Defer Quality Updates .DESCRIPTION CIS - Quality updates (security patches) configuratie. .NOTES Filename: windows-update-defer-quality.ps1|Author: Nederlandse Baseline voor Veilige Cloud|Registry: HKLM:\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\DeferQualityUpdates|Expected: 0 (Immediate) #> #Requires -Version 5.1 #Requires -RunAsAdministrator [CmdletBinding()]param([switch]$WhatIf, [switch]$Monitoring, [switch]$Remediation, [switch]$Revert) $ErrorActionPreference = 'Stop'; $RegPath = "HKLM:\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate"; $RegName = "DeferQualityUpdates"; $ExpectedValue = 0 function Connect-RequiredServices { $p = New-Object Security.Principal.WindowsPrincipal([Security.Principal.WindowsIdentity]::GetCurrent()); return $p.IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator) } function Test-Compliance { $r = [PSCustomObject]@{ScriptName = "defer-quality.ps1"; PolicyName = "Defer Quality Updates"; IsCompliant = $false; CurrentValue = $null; ExpectedValue = "Immediate (0)"; Details = @() }; function Invoke-Revert { Remove-ItemProperty -Path $RegPath -Name $RegName -ErrorAction SilentlyContinue } try { if (Test-Path $RegPath) { $v = Get-ItemProperty -Path $RegPath -Name $RegName -ErrorAction SilentlyContinue; if ($v) { $r.CurrentValue = $v.$RegName; if ($r.CurrentValue -eq $ExpectedValue) { $r.IsCompliant = $true; $r.Details += "Quality updates immediate" }else { $r.Details += "Quality updates deferred" } }else { $r.IsCompliant = $true; $r.Details += "Default: immediate" } }else { $r.IsCompliant = $true; $r.Details += "Default" } }catch { $r.Details += "Error: $($_.Exception.Message)" }; return $r } function Invoke-Remediation { if (-not(Test-Path $RegPath)) { New-Item -Path $RegPath -Force | Out-Null }; Set-ItemProperty -Path $RegPath -Name $RegName -Value $ExpectedValue -Type DWord -Force; Write-Host "Quality updates immediate (no deferral)" -ForegroundColor Green } function Invoke-Monitoring { $r = Test-Compliance; Write-Host "`n$($r.PolicyName): $(if($r.IsCompliant){'COMPLIANT'}else{'NON-COMPLIANT'})" -ForegroundColor $(if ($r.IsCompliant) { 'Green' }else { 'Red' }); return $r } function Invoke-Revert { Remove-ItemProperty -Path $RegPath -Name $RegName -ErrorAction SilentlyContinue } try { if (-not(Connect-RequiredServices)) { exit 1 }; if ($Monitoring) { $r = Invoke-Monitoring; exit $(if ($r.IsCompliant) { 0 }else { 1 }) }elseif ($Remediation) { if (-not $WhatIf) { Invoke-Remediation } }elseif ($Revert) { Invoke-Revert }else { $r = Test-Compliance; exit $(if ($r.IsCompliant) { 0 }else { 1 }) } }catch { Write-Error $_; exit 1 }

Risico zonder implementatie

Risico zonder implementatie
Critical: KRITIEK: Quality update deferral = vulnerability window (PrintNightmare exploited within HOURS).

Management Samenvatting

Quality updates: 0 days deferral (IMMEDIATE). Security patches urgent. No testing delay acceptable. Implementatie: 1-2 uur.