Title

Device driver updates must only search managed servers, not Windows Update. (Cat III impact)

Discussion

Uncontrolled system updates can introduce issues to a system. Obtaining update components from an outside source may also potentially provide sensitive information outside of the enterprise. Device driver updates must be obtained from an internal source.

Check Content

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Windows\DriverSearching\ Value Name: DriverServerSelection Type: REG_DWORD Value: 1

Fix Text

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Device Installation -> "Specify the search server for device driver updates" to "Enabled" with "Search Managed Server" selected.

Additional Identifiers

Rule ID: SV-48297r2_rule

Vulnerability ID: V-36678

Group Title: WINCC-000025

Expert Comments

CCIs tied to check.

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