Ensure 'cookies' are set with HttpOnly attribute

MoyenneNiveau 1Automatiséeiis

Description

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.

Méthode de vérification

Méthode d'audit: Commande shell

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' }

Sortie attendue: compliant

Méthode de correction

Méthode de correction: Recommandation ou correctif d'infrastructure

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

Propriétés

Systèmes d'exploitation: Tous
Étiquettes: iissession
Référence: CIS Microsoft IIS 10 Benchmark v1.2.1 - 3.7 Ensure 'cookies' are set with HttpOnly attribute

Vérifier cet hôte

Exécutez cette commande sur une machine que vous êtes autorisé à auditer. L'analyse est en lecture seule.

shell

tmaegis scan --target iis