Ensure 'forms authentication' require SSL

MédiaNível 1Automatizadaiis

Descrição

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.

Como é verificado

Método de auditoria: Comando 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' }

Saída esperada: compliant

Como é corrigido

Método de correção: Orientação ou patch de infraestrutura

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

Propriedades

Sistemas operacionais: Qualquer
Tags: iisauthentication
Referência: CIS Microsoft IIS 10 Benchmark v1.2.1 - 2.3 Ensure 'forms authentication' require SSL

Verificar este host

Execute isto em uma máquina que você tenha permissão para auditar. A varredura é somente leitura.

shell

tmaegis scan --target iis