Ensure 'Deny access to this computer from the network' to include 'Guests, Local account'

HighLevel 1Automatedwindows

Description

This policy setting prohibits users from connecting to a computer from across the network, which would allow users to access and potentially modify data remotely. In high security environments, there should be no need for remote users to access data on a computer. Instead, file sharing should be accomplished through the use of network servers. This user right supersedes the Access this computer from the network user right if an account is subject to both policies. The recommended state for this setting is to include: Guests, Local account. Caution: Configuring a standalone (non-domain-joined)

How it is checked

Audit method: Shell command

shell

$f = Join-Path $env:TEMP ('tmaegis-' + [guid]::NewGuid().ToString() + '.inf'); secedit /export /cfg $f /areas SECURITYPOLICY USER_RIGHTS /quiet | Out-Null; $c = Get-Content $f -ErrorAction SilentlyContinue; Remove-Item $f -Force -ErrorAction SilentlyContinue; $line = $c | Where-Object { $_ -match '^\s*SeDenyNetworkLogonRight\s*=' } | Select-Object -First 1; $v = if ($line) { ($line -split '=', 2)[1].Trim().Trim('"') } else { $null }; $have = @(if ($v) { $v -split ',' | ForEach-Object { $_.Trim().TrimStart('*') } | Where-Object { $_ } }); $missing = @('S-1-5-32-546','S-1-5-113') | Where-Object { $have -notcontains $_ }; if ($missing.Count -eq 0) { 'compliant' } else { 'non-compliant: ' + ($have -join ',') }

Expected output: compliant

How it is fixed

Fix method: Guidance or infrastructure patch

Set through Group Policy (domain policy for domain members): Computer Configuration\Policies\Windows Settings\Security Settings\Local Policies\User Rights Assignment\Deny access to this computer from the network

Properties

Operating systems: windows-10
Tags: cis-convertedseceditwindows
Reference: CIS Microsoft Windows 10 Enterprise Benchmark v4.0.0 - 2.2.16

Check this host

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

shell

tmaegis scan --target windows