Title

Remote assistance must display a warning message when allowing helpdesk personnel to connect to a system. (Cat III impact)

Discussion

Requiring warning text to display when allowing helpdesk personnel to connect to a system with remote assistance ensures personnel are aware of the activity and enforces the need to monitor the activity.

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 NT\Terminal Services\ Value Name: ViewMessage Type: REG_SZ Value: You are about to allow other personnel to remotely connect to your system. Sensitive data should not be displayed during this session.

Fix Text

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Remote Assistance -> "Customize warning messages" to "Enabled" with "You are about to allow other personnel to remotely connect to your system. Sensitive data should not be displayed during this session." entered in the "Display warning message before connecting:" field.

Additional Identifiers

Rule ID: SV-48317r2_rule

Vulnerability ID: V-36694

Group Title: WN08-CC-000061

Expert Comments

CCIs tied to check.

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