Ensure 'Configure RPC packet level privacy setting for incoming connections' is set to 'Enabled'

HighLevel 1Automatedwindows

Description

This policy setting controls packet level privacy for Remote Procedure Call (RPC) incoming connections. The recommended state for this setting is: Enabled.

How it is checked

Audit method: Windows registry

registry

$bad = @(); $v = (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print' -Name 'RpcAuthnLevelPrivacyEnabled' -ErrorAction SilentlyContinue).'RpcAuthnLevelPrivacyEnabled'; if (-not ($null -ne $v -and @(1) -contains [int64]$v)) { $bad += 'RpcAuthnLevelPrivacyEnabled=' + $v }; if ($bad.Count -eq 0) { 'compliant' } else { 'non-compliant: ' + ($bad -join ', ') }

Expected output: compliant

How it is fixed

Fix method: Shell command

shell

if (-not (Test-Path 'Registry::HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print')) { New-Item -Path 'Registry::HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print' -Force | Out-Null }; New-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print' -Name 'RpcAuthnLevelPrivacyEnabled' -Value 1 -PropertyType DWord -Force | Out-Null

Properties

Operating systems: windows-10
Tags: cis-convertedregistrywindows
Reference: CIS Microsoft Windows 10 Enterprise Benchmark v4.0.0 - 18.7.8

Check this host

Run this on a machine you are allowed to audit. The scan is read-only.

shell

tmaegis scan --target windows