Title

Terminal Services – Prevent LPT Port Redirection (Terminal Server Role). (Cat II impact)

Discussion

This check verifies that the system is configured to prevent users from mapping local LPT ports and redirecting data from the Terminal Server to local LPT ports.

Check Content

If the following registry value doesn’t 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: fDisableLPT Type: REG_DWORD Value: 1

Fix Text

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Terminal Services -> Terminal Server -> Device and Resource Redirection “Do not allow LPT port redirection” to “Enabled”.

Additional Identifiers

Rule ID: SV-16942r1_rule

Vulnerability ID: V-15998

Group Title: TS/RDS – LPT Port Redirection

Expert Comments

CCIs tied to check.

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