Dit regelen configureert external no regelen via Microsoft Intune apparaat configuratie beleid of compliance policies om Windows endpoints te beveiligen volgens security best practices.
Vereisten
m365
Implementatie
Gebruik PowerShell-script external-no-control.ps1 (functie Invoke-Monitoring) β Monitoren.
monitoring
Gebruik PowerShell-script external-no-control.ps1 (functie Invoke-Monitoring) β Controleren.
Remediatie
Gebruik PowerShell-script external-no-control.ps1 (functie Invoke-Remediation) β Herstellen.
Compliance en Auditing
Beleid documentatie
Compliance & Frameworks
CIS M365: Control 18.9.19.2 (L1) - CIS Security Benchmark aanbevelingen
BIO: 16.01 - BIO Baseline Informatiebeveiliging Overheid - 16.01 - Gebeurtenissen logging en audittrails
ISO 27001:2022: A.12.4.1 - ISO 27001:2022 - Gebeurtenissen logging en audittrails
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
External Users No Meeting Control
.DESCRIPTION
Prevents external users from giving or requesting control in Teams meetings
.NOTES
NL Baseline v2.0#>#Requires -Version 5.1#Requires -Modules MicrosoftTeams
[CmdletBinding()]
param([switch]$Monitoring)
$ErrorActionPreference = 'Stop'
Write-Host "`n========================================" -ForegroundColor Cyan
Write-Host "External No Meeting Control" -ForegroundColor Cyan
Write-Host "========================================`n" -ForegroundColor Cyan
function Invoke-Monitoring {
try {
Connect-MicrosoftTeams -ErrorAction Stop
$policy = Get-CsTeamsMeetingPolicy -Identity Global
$result = @{
isCompliant = (-not $policy.AllowExternalParticipantGiveRequestControl)
setting = $policy.AllowExternalParticipantGiveRequestControl
}
Write-Host " External Give/Request Control: $(if($result.setting){'ENABLED'}else{'DISABLED'})" -ForegroundColor $(
if (-not $result.setting) { 'Green' }else { 'Red' }
)
Write-Host "`n Security Benefits:" -ForegroundColor Cyan
Write-Host " β’ Prevents external users from controlling meetings" -ForegroundColor Gray
Write-Host " β’ Reduces security risks" -ForegroundColor Gray
Write-Host " β’ Maintains meeting governance" -ForegroundColor Gray
Write-Host " β’ Prevents unauthorized control" -ForegroundColor Gray
if ($result.isCompliant) {
Write-Host "`n[OK] COMPLIANT - External control disabled" -ForegroundColor Green
exit 0
}
else {
Write-Host "`n[FAIL] NON-COMPLIANT - External control enabled!" -ForegroundColor Red
exit 1
}
}
catch {
Write-Host "ERROR: $_" -ForegroundColor Red
exit 2
}
}
try {
if ($Monitoring) { Invoke-Monitoring }
else { Write-Host "Use: -Monitoring" -ForegroundColor Yellow }
}
catch { throw }
finally {
Write-Host "`n========================================`n" -ForegroundColor Cyan
}
function Invoke-Remediation {
<#
.SYNOPSIS
Herstelt de configuratie naar de gewenste staat
.DESCRIPTION
Dit is een monitoring-only control, remediation delegeert naar monitoring
#>
[CmdletBinding()]
param()
Write-Host "[INFO] Dit is een monitoring-only control" -ForegroundColor Yellow
Write-Host "[INFO] Running monitoring check..." -ForegroundColor Cyan
Invoke-Monitoring
}