Ensure 'Block macros from running in Office files from the internet' is set to 'Enabled'

AltaNível 1Automatizadaoffice

Descrição

This policy setting allows the blocking of macros from running in Office files that come from the internet. By enabling this policy setting, macros are blocked from running, even if "Enable all macros" is selected in the Macro Settings section of the Trust Center. Users will receive a notification that macros are blocked from running. Rationale: Windows marks files downloaded from the internet using an alternate NTFS data stream. Files from untrusted sources can contain malicious payloads embedded in macros that may compromise the system on which they are run. User setting: the audit checks HKEY_USERS\<SID>\SOFTWARE\Policies\Microsoft\office\16.0\access\security:blockcontentexecutionfrominternet (REG_DWORD) in every loaded user hive (S-1-5-21-*) and is compliant when each holds 1. It prints 'no-user-hive-loaded' (FAIL) when no user profile is loaded, so scan while users are logged on.

Como é verificado

Método de auditoria: Registro do Windows

registry

$sids = @(Get-ChildItem -Path 'Registry::HKEY_USERS' -ErrorAction SilentlyContinue | Where-Object { $_.PSChildName -match '^S-1-5-21-\d+-\d+-\d+-\d+$' } | ForEach-Object { $_.PSChildName }); if ($sids.Count -eq 0) { 'no-user-hive-loaded' } else { $bad = @(); foreach ($s in $sids) { $v = (Get-ItemProperty -Path ('Registry::HKEY_USERS\' + $s + '\SOFTWARE\Policies\Microsoft\office\16.0\access\security') -Name 'blockcontentexecutionfrominternet' -ErrorAction SilentlyContinue).'blockcontentexecutionfrominternet'; if (-not ($null -ne $v -and @(1) -contains [int64]$v)) { $bad += $s + ':blockcontentexecutionfrominternet=' + $v } }; if ($bad.Count -eq 0) { 'compliant' } else { 'non-compliant: ' + ($bad -join ', ') } }

Saída esperada: compliant

Como é corrigido

Método de correção: Orientação ou patch de infraestrutura

Configure through Group Policy (User Configuration): User Configuration\Administrative Templates\Microsoft Access 2016\Application Settings\Security\Trust Center\Block macros from running in Office files from the internet = Enabled

Propriedades

Sistemas operacionais: Qualquer
Tags: officeproductivitycis-l1
Referência: CIS Microsoft Office Enterprise Benchmark v2.0.0 - 2.1.1.3.2.2 Ensure 'Block macros from running in Office files from the internet' is set to 'Enabled'

Verificar este host

Execute isto em uma máquina que você tenha permissão para auditar. A varredura é somente leitura.

shell

tmaegis scan --target office