5.11 (L2) Ensure 'Peer Name Resolution Protocol (PNRPsvc)' is set to 'Disabled'

Information

Enables serverless peer name resolution over the Internet using the Peer Name Resolution Protocol (PNRP).
The recommended state for this setting is: Disabled.

Rationale:
Peer Name Resolution Protocol is a distributed and (mostly) serverless way to handle name resolution of clients with each other. In a high security environment, it is more secure to rely on centralized name resolution methods maintained by authorized staff.

Solution

To establish the recommended configuration via GP, set the following UI path to: Disabled.
Computer Configuration\Policies\Windows Settings\Security Settings\System Services\Peer Name Resolution Protocol

Impact:
Some peer-to-peer and collaborative applications, such as Remote Assistance, may not function.

Default Value:
Manual

See Also

https://workbench.cisecurity.org/files/2754

Item Details

Category: SYSTEM AND INFORMATION INTEGRITY

References: 800-53|SI-4, CSCv6|9.1, CSCv7|9.2

Plugin: Windows

Control ID: d18dfccf5561454cc88603b12410f448232b020bd3afd2c4ccb0de4171a883ab