Ensure IIS HTTP detailed errors are hidden from displaying remotely

SedangLevel 1Otomatisiis

Deskripsi

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.

Cara pemeriksaan

Metode audit: Perintah shell

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' }

Output yang diharapkan: compliant

Cara perbaikan

Metode perbaikan: Panduan atau patch infrastruktur

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

Properti

Sistem operasi: Apa saja
Tag: iisinformation-disclosure
Referensi: CIS Microsoft IIS 10 Benchmark v1.2.1 - 3.4 Ensure IIS HTTP detailed errors are hidden from displaying remotely

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shell

tmaegis scan --target iis