Ensure 'External send connector authentication: IgnoreStartTLS' is set to 'False'

高レベル 1自動exchange

説明

This policy setting specifies whether to ignore the StartTLS option offered by a remote sending server. StartTLS is a protocol command used to inform the email server that the email client wants to upgrade from an insecure connection to a secure one using TLS or SSL. Prints the number of Send connectors where IgnoreSTARTTLS is True (expected 0). 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.

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' }; $bad = @(Get-SendConnector -ErrorAction Stop | Where-Object { $_.IgnoreSTARTTLS -eq $true }); $bad.Count

期待される出力: 0

修正方法

修正方法: ガイダンスまたは IaC パッチ

Set-SendConnector '<connector>' -IgnoreSTARTTLS $false

プロパティ

オペレーティングシステム: すべて
タグ: exchangetransporttls
参照: CIS Microsoft Exchange Server 2019 Benchmark v1.0.1 - 2.2.9 Ensure 'External send connector authentication: IgnoreStartTLS' is set to 'False'

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