Remote Management: Unauthenticated RPC clients must be restricted from connecting to the RPC server

56db7e62-0a85-4531-9e71-97528bd04e43

Unauthenticated RPC clients may allow anonymous access to sensitive information. Configuring RPC to restrict unauthenticated RPC clients from connecting to the RPC server will prevent anonymous connections.

Remediation

To fix this Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Remote Procedure Call >> "Restrict Unauthenticated RPC clients" to "Enabled" with "Authenticated" selected.

STIG: Server 2019: https://www.stigviewer.com/stig/windows_server_2019/2020-06-15/finding/V-93453
Server 2016:https://www.stigviewer.com/stig/microsoft_windows_server_2016/2022-03-01/finding/V-225010
Desktop: https://www.stigviewer.com/stig/microsoft_windows_10/2022-04-08/finding/V-220824

NIST 800-171R2: 3.4.7
NIST 800-53: CM-7(1)
CSA CMM v4: AIS-02, IVS-03, IVS-04
PCI DSS v4.0: 1.2.7
CMMC V2: CM.L2-3.4.7
CMMC: CM.3.068