TMA-IIS-2.3

Ensure 'forms authentication' require SSL

MediaNivel 1Automatizadaiis

Descripción

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.

Cómo se verifica

Método de auditoría: Comando de shell

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' }

Salida esperada: compliant

Cómo se corrige

Método de corrección: Guía o parche de infraestructura

Set-WebConfigurationProperty -PSPath 'MACHINE/WEBROOT/APPHOST/<site>' -Filter system.web/authentication/forms -Name requireSSL -Value True

Propiedades

Sistemas operativos: Cualquiera
Etiquetas: iisauthentication
Referencia: CIS Microsoft IIS 10 Benchmark v1.2.1 - 2.3 Ensure 'forms authentication' require SSL

Verificar este host

Ejecute esto en un equipo que tenga permiso para auditar. El escaneo es de solo lectura.

shell

tmaegis scan --target iis