TMA-IIS-2.3

Ensure 'forms authentication' require SSL

中レベル 1自動iis

説明

Forms-based authentication can pass credentials across the network in clear text. It is therefore imperative that the traffic between client and server be encrypted using SSL, especially in cases where the site is publicly accessible. It is recommended that communications with any portion of a site using Forms Authentication be encrypted using SSL. Wherever forms authentication is the mode (root web.config and each site), forms requireSSL must be true. Compliant when forms authentication is not used. PowerShell 5.1 with the WebAdministration module; run elevated.

チェック方法

監査方法: シェルコマンド

shell

Import-Module WebAdministration -ErrorAction Stop; $paths = @('MACHINE/WEBROOT') + @(Get-Website | ForEach-Object { "IIS:\Sites\$($_.Name)" }); $bad = @($paths | Where-Object { $a = Get-WebConfiguration -Filter 'system.web/authentication' -PSPath $_; $f = Get-WebConfiguration -Filter 'system.web/authentication/forms' -PSPath $_; [string]$a.mode -eq 'Forms' -and ($f.requireSSL -ne $true) }); if ($bad.Count -eq 0) { '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-WebConfigurationProperty -PSPath 'MACHINE/WEBROOT/APPHOST/<site>' -Filter system.web/authentication/forms -Name requireSSL -Value True

プロパティ

オペレーティングシステム: すべて
タグ: iisauthentication
参照: CIS Microsoft IIS 10 Benchmark v1.2.1 - 2.3 Ensure 'forms authentication' require SSL

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 iis