Ensure 'Blank sender field' is configured

中レベル 1自動exchange

説明

When the Sender Filter Agent takes on messages from blocked senders or domains, the Action parameter is what is used when deciding what to do with these messages. Prints compliant when sender filter Action is Reject and BlankSenderBlockingEnabled is True. Run on each Edge Transport server. 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.

チェック方法

監査方法: シェルコマンド

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' }; $c = Get-SenderFilterConfig -ErrorAction Stop; if ("$($c.Action)" -eq 'Reject' -and $c.BlankSenderBlockingEnabled -eq $true) { 'compliant' } else { 'noncompliant' }

期待される出力: compliant

修正方法

修正方法: ガイダンスまたは IaC パッチ

Set-SenderFilterConfig -Action Reject -BlankSenderBlockingEnabled $true

プロパティ

オペレーティングシステム: すべて
タグ: exchangeantispam
参照: CIS Microsoft Exchange Server 2019 Benchmark v1.0.1 - 1.4 Ensure 'Blank sender field' is configured

このホストをチェック

監査が許可されているマシンで実行してください。スキャンは読み取り専用です。

shell

tmaegis scan --target exchange