Ensure 'Enable sender ID agent' is configured

高レベル 1自動exchange

説明

The Sender ID agent is an antispam agent enabled on Exchange servers that perform the Edge Transport server role. Sender ID tries to verify that every e-mail message originates from the Internet domain from which it claims to have been sent. Sender ID checks the address of the server that sends the message against a registered list of servers that the domain owner has authorized to send e-mail. Prints compliant when the Sender ID agent is Enabled and SpoofedDomainAction is Reject. 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' }; $c = Get-SenderIdConfig -ErrorAction Stop; if ($c.Enabled -eq $true -and "$($c.SpoofedDomainAction)" -eq 'Reject') { '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-SenderIdConfig -Enabled $true -SpoofedDomainAction Reject

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 - 1.1 Ensure 'Enable sender ID agent' 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