Mechanisms for removing zone information from file attachments must be hidden.

From Windows Server 2012/2012 R2 Member Server Security Technical Implementation Guide

Part of Attachment Mgr - Hide Mech to Remove Zone Info

Associated with: CCI-000366

SV-53004r1_rule Mechanisms for removing zone information from file attachments must be hidden.

Vulnerability discussion

Preserving zone of origin (internet, intranet, local, restricted) information on file attachments allows Windows to determine risk. This setting prevents users from manually removing zone information from saved file attachments.

Check content

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_CURRENT_USER Registry Path: \Software\Microsoft\Windows\CurrentVersion\Policies\Attachments\ Value Name: HideZoneInfoOnProperties Type: REG_DWORD Value: 1

Fix text

Configure the policy value for User Configuration -> Administrative Templates -> Windows Components -> Attachment Manager -> "Hide mechanisms to remove zone information" to "Enabled".

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