TMA-IIS-3.1
Ensure 'deployment method retail' is set
Description
The <deployment retail> switch is intended for use by production IIS servers. This switch is used to help applications run with the best possible performance and least possible security information leakages by disabling the application's ability to generate trace output on a page, disabling the ability to display detailed error messages to end users, and disabling the debug switch. machine.config must contain <deployment retail="true" />. PowerShell 5.1 with the WebAdministration module; run elevated. CIS marks this recommendation Manual; the automated check implements its audit procedure.
How it is checked
Audit method: Shell command
Import-Module WebAdministration -ErrorAction Stop; $c = Get-WebConfiguration -Filter 'system.web/deployment' -PSPath 'MACHINE'; if ($c.retail -eq $true) { 'compliant' } else { 'noncompliant' }- Expected output
compliant
How it is fixed
Fix method: Guidance or infrastructure patch
In %windir%\Microsoft.NET\Framework64\<version>\Config\machine.config add <deployment retail="true" /> inside <system.web> (also in the 32-bit Framework copy).
Properties
- Operating systems
- Any
- Tags
- iisaspnet
- Reference
- CIS Microsoft IIS 10 Benchmark v1.2.1 - 3.1 Ensure 'deployment method retail' is set
Check this host
Run this on a machine you are allowed to audit. The scan is read-only.
tmaegis scan --target iis