TMA-IIS-3.3

Ensure custom error messages are not off

DüşükDüzey 2Otomatikiis

Açıklama

When an ASP.NET application fails and causes an HTTP/1.x 500 Internal Server Error, or a feature configuration (such as Request Filtering) prevents a page from being displayed, an error message will be generated. Administrators can choose whether or not the application should display a friendly message to the client, detailed error message to the client, or detailed error message to localhost only. customErrors mode must be RemoteOnly or On (not Off) in the root web.config and every site. PowerShell 5.1 with the WebAdministration module; run elevated.

Nasıl denetlenir

Denetim yöntemi: Kabuk komutu

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/customErrors' -PSPath $_; [string]$c.mode -eq 'Off' }); if ($bad.Count -eq 0) { 'compliant' } else { 'noncompliant' }

Beklenen çıktı: compliant

Nasıl düzeltilir

Düzeltme yöntemi: Kılavuz veya altyapı yaması

Set-WebConfigurationProperty -PSPath 'MACHINE/WEBROOT/APPHOST/<site>' -Filter system.web/customErrors -Name mode -Value RemoteOnly

Özellikler

İşletim sistemleri: Herhangi biri
Etiketler: iisinformation-disclosure
Referans: CIS Microsoft IIS 10 Benchmark v1.2.1 - 3.3 Ensure custom error messages are not off

Bu ana makineyi denetle

Bunu denetleme izniniz olan bir makinede çalıştırın. Tarama salt okunurdur.

shell

tmaegis scan --target iis --level 2