Detections
Analytics

5.24 (L2) Ensure 'Remote Desktop Services UserMode Port Redirector (UmRdpService)' is set to 'Disabled'

Warning! Audit Deprecated

This audit has been deprecated and will be removed in a future update.

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Information

Allows the redirection of Printers/Drives/Ports for RDP connections.

The recommended state for this setting is: Disabled.

In a security-sensitive environment, it is desirable to reduce the possible attack surface - preventing the redirection of COM, LPT and PnP ports will reduce the number of unexpected avenues for data exfiltration and/or malicious code transfer within an RDP session.

Solution

To establish the recommended configuration via GP, set the following UI path to: Disabled.

Computer Configuration\Policies\Windows Settings\Security Settings\System Services\Remote Desktop Services UserMode Port Redirector

Impact:

Printers, drives and ports (COM, LPT, PnP, etc.) will not be allowed to be redirected inside RDP sessions.

See Also

https://workbench.cisecurity.org/benchmarks/21994

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6, 800-53|CM-7, CSCv7|9.2

Plugin: Windows

Control ID: 8d75e62793b1fed390720e9ea3aff36b37d21eabd3a866cd1cf593baed690ee7