TMA-IIS-3.9

Ensure 'MachineKey validation method - .Net 4.5' is configured

MediaNivel 1Automatizadaiis

Descripción

The machineKey element of the ASP.NET web.config specifies the algorithm and keys that ASP.NET will use for encryption. The Machine Key feature can be managed to specify hashing and encryption settings for application services such as view state, Forms authentication, membership and roles, and anonymous identification. The following validation methods are available ... The .NET 4.x root web.config machineKey validation must be HMACSHA256 (HMACSHA384/512 are also accepted as stronger). PowerShell 5.1 with the WebAdministration module; run elevated.

Cómo se verifica

Método de auditoría: Comando de shell

shell

Import-Module WebAdministration -ErrorAction Stop; $c = Get-WebConfiguration -Filter 'system.web/machineKey' -PSPath 'MACHINE/WEBROOT'; if ([string]$c.validation -in @('HMACSHA256', 'HMACSHA384', 'HMACSHA512')) { 'compliant' } else { 'noncompliant' }

Salida esperada: compliant

Cómo se corrige

Método de corrección: Guía o parche de infraestructura

Set-WebConfigurationProperty -PSPath 'MACHINE/WEBROOT' -Filter system.web/machineKey -Name validation -Value HMACSHA256

Propiedades

Sistemas operativos: Cualquiera
Etiquetas: iisaspnetcrypto
Referencia: CIS Microsoft IIS 10 Benchmark v1.2.1 - 3.9 Ensure 'MachineKey validation method - .Net 4.5' is configured

Verificar este host

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

shell

tmaegis scan --target iis