Ensure 'Enable automatic forwards to remote domains' is set to 'False'

ÉlevéeNiveau 1Automatiséeexchange

Description

This policy setting is used to determine if the server can send automatic forwards to remote domains. Prints the number of remote domains where AutoForwardEnabled is not False (expected 0). Automatic forwarding to external domains is a common exfiltration path. Every remote domain (including Default) is checked. Run on a Mailbox server (organization-wide objects are read from AD). Run from an Exchange Management Shell or after `Add-PSSnapin Microsoft.Exchange.Management.PowerShell.SnapIn`; the audit loads the snap-in itself when Get-ExchangeServer is missing and fails if it cannot.

Méthode de vérification

Méthode d'audit: Commande shell

shell

$ErrorActionPreference = 'Stop'; if (-not (Get-Command Get-ExchangeServer -ErrorAction SilentlyContinue)) { Add-PSSnapin Microsoft.Exchange.Management.PowerShell.SnapIn -ErrorAction Stop }; if (-not (Get-Command Get-ExchangeServer -ErrorAction SilentlyContinue)) { throw 'Exchange Management Shell cmdlets are not available' }; $bad = @(Get-RemoteDomain -ErrorAction Stop | Where-Object { $_.AutoForwardEnabled -ne $false }); $bad.Count

Sortie attendue: 0

Méthode de correction

Méthode de correction: Recommandation ou correctif d'infrastructure

Set-RemoteDomain '<RemoteDomain>' -AutoForwardEnabled $false

Propriétés

Systèmes d'exploitation: Tous
Étiquettes: exchangeremote-domains
Référence: CIS Microsoft Exchange Server 2019 Benchmark v1.0.1 - 2.3.4 Ensure 'Enable automatic forwards to remote domains' is set to 'False'

Vérifier cet hôte

Exécutez cette commande sur une machine que vous êtes autorisé à auditer. L'analyse est en lecture seule.

shell

tmaegis scan --target exchange