Ensure IIS HTTP detailed errors are hidden from displaying remotely

MittelStufe 1Automatisiertiis

Beschreibung

A Web site's error pages are often set to show detailed error information for troubleshooting purposes during testing or initial deployment. To prevent unauthorized users from viewing this privileged information, detailed error pages must not be seen by remote users. This setting can be modified in the errorMode attribute setting for a Web site's error pages. httpErrors errorMode must be DetailedLocalOnly or Custom at server level and for every site. PowerShell 5.1 with the WebAdministration module; run elevated.

So wird geprüft

Prüfmethode: Shell-Befehl

shell

Import-Module WebAdministration -ErrorAction Stop; $paths = @('MACHINE/WEBROOT/APPHOST') + @(Get-Website | ForEach-Object { "IIS:\Sites\$($_.Name)" }); $bad = @($paths | Where-Object { $c = Get-WebConfiguration -Filter 'system.webServer/httpErrors' -PSPath $_; [string]$c.errorMode -notin @('DetailedLocalOnly', 'Custom') }); if ($bad.Count -eq 0) { 'compliant' } else { 'noncompliant' }

Erwartete Ausgabe: compliant

So wird behoben

Behebungsmethode: Anleitung oder Infrastruktur-Patch

Set-WebConfigurationProperty -PSPath 'MACHINE/WEBROOT/APPHOST' -Filter system.webServer/httpErrors -Name errorMode -Value DetailedLocalOnly

Eigenschaften

Betriebssysteme: Beliebig
Tags: iisinformation-disclosure
Referenz: CIS Microsoft IIS 10 Benchmark v1.2.1 - 3.4 Ensure IIS HTTP detailed errors are hidden from displaying remotely

Diesen Host prüfen

Führen Sie dies auf einem Rechner aus, den Sie prüfen dürfen. Der Scan ist schreibgeschützt.

shell

tmaegis scan --target iis