TMA-IIS-3.7

Ensure 'cookies' are set with HttpOnly attribute

中レベル 1自動iis

説明

The httpOnlyCookies attribute of the httpCookies node determines if IIS will set the HttpOnly flag on HTTP cookies it sets. The HttpOnly flag indicates to the user agent that the cookie must not be accessible by client-side script (i.e document.cookie). It is recommended that the httpOnlyCookies attribute be set to true. httpCookies httpOnlyCookies must be true in the root web.config and every site. 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 { $c = Get-WebConfiguration -Filter 'system.web/httpCookies' -PSPath $_; $c.httpOnlyCookies -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

Add <httpCookies httpOnlyCookies="true" /> inside <system.web> of each application web.config.

プロパティ

オペレーティングシステム: すべて
タグ: iissession
参照: CIS Microsoft IIS 10 Benchmark v1.2.1 - 3.7 Ensure 'cookies' are set with HttpOnly attribute

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