Title

Preserve Zone information when saving attachments. (Cat II impact)

Discussion

This check verifies that file attachments are marked with their zone of origin allowing Windows to determine risk.

Check Content

If the following registry value doesn’t exist or is not configured as specified, this is a finding: Registry Hive: HKEY_Current_User Subkey: \Software\Microsoft\Windows\CurrentVersion\Policies\Attachments\ Value Name: SaveZoneInformation Type: REG_DWORD Value: 2

Fix Text

Configure the policy value for User Configuration -> Administrative Templates -> Windows Components -> Attachment Manager -> “Do not preserve zone information in file attachments” to “Disabled”.

Additional Identifiers

Rule ID: SV-29754r1_rule

Vulnerability ID: V-14268

Group Title: Attachment Mgr - Preserve Zone Info

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.