Ensure 'Allow Trusted Locations on the network' is set to 'Disabled'

高レベル 1自動office

説明

This policy setting controls whether trusted locations on the network can be used. Trusted locations specified in the Trust Center are used to define file locations that are assumed to be safe by the application opening the file. The recommended state for this setting is: Disabled. Rationale: Content, code, and add-ins are allowed to load from trusted locations with a minimal amount of security, without prompting the users for permission. User setting: the audit checks HKEY_USERS\<SID>\SOFTWARE\Policies\Microsoft\office\16.0\excel\security\trustedlocations:allownetworklocations (REG_DWORD) in every loaded user hive (S-1-5-21-*) and is compliant when each holds 0. It prints 'no-user-hive-loaded' (FAIL) when no user profile is loaded, so scan while users are logged on.

チェック方法

監査方法: Windows レジストリ

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\' + $s + '\SOFTWARE\Policies\Microsoft\office\16.0\excel\security\trustedlocations') -Name 'allownetworklocations' -ErrorAction SilentlyContinue).'allownetworklocations'; if (-not ($null -ne $v -and @(0) -contains [int64]$v)) { $bad += $s + ':allownetworklocations=' + $v } }; if ($bad.Count -eq 0) { 'compliant' } else { 'non-compliant: ' + ($bad -join ', ') } }

期待される出力: compliant

修正方法

修正方法: ガイダンスまたは IaC パッチ

Configure through Group Policy (User Configuration): User Configuration\Administrative Templates\Microsoft Excel 2016\Excel Options\Security\Trust Center\Trusted Locations\Allow Trusted Locations on the network = Disabled

プロパティ

オペレーティングシステム: すべて
タグ: officeproductivitycis-l1
参照: CIS Microsoft Office Enterprise Benchmark v2.0.0 - 2.2.4.7.2.4.1 Ensure 'Allow Trusted Locations on the network' is set to 'Disabled'

このホストをチェック

監査が許可されているマシンで実行してください。スキャンは読み取り専用です。

shell

tmaegis scan --target office