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WN25-CC-000060 Windows Server 2025 must be configured to ignore NetBIOS name release requests except from WINS servers.

DISA STIG library V1R4
All changes in this version
first version loaded CAT III

Maps to SC-5 via CCI-002385

Title

Windows Server 2025 must be configured to ignore NetBIOS name release requests except from WINS servers.

Control

If the following registry value does not exist or is not configured as specified, this is a finding: Registry HiveHKEY_LOCAL_MACHINE Registry Path\SYSTEM\CurrentControlSet\Services\Netbt\Parameters\ Value NameNoNameReleaseOnDemand Value TypeREG_DWORD Value0x00000001 (1)

Discussion

Configuring the system to ignore name release requests, except from WINS servers, prevents a denial-of-service (DoS) attack. The DoS consists of sending a NetBIOS name release request to the server for each entry in the server's cache, causing a response delay in the normal operation of the server's WINS resolution capability.

Related controls

CCI-002385

Fix

Configure the policy value for Computer Configuration >> Administrative Templates >> MSS (Legacy) >> MSS: (NoNameReleaseOnDemand) Allow the computer to ignore NetBIOS name release requests except from WINS servers to "Enabled". This policy setting requires the installation of the MSS-Legacy custom templates included with the STIG package. "MSS-Legacy.admx" and "MSS-Legacy.adml" must be copied to the \Windows\PolicyDefinitions and \Windows\PolicyDefinitions\en-US directories respectively.