Title

The system is configured to allow name-release attacks. (Cat III impact)

Discussion

Prevents a denial-of-service (DoS) attack against a WINS server. The DoS consists of sending a NetBIOS Name Release Request to the server for each entry in the servers cache, causing a response delay in the normal operation of the servers WINS resolution capability.

Check Content

Fix Text

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “MSS: (NoNameReleaseOnDemand) Allow computer to ignore NetBIOS name release requests except from WINS servers” to “Enabled”.

Additional Identifiers

Rule ID: SV-29370r1_rule

Vulnerability ID: V-4116

Group Title: Name-Release Attacks

Expert Comments

CCIs tied to check.

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