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The service principal name (SPN) target name validation level must be configured to Accept if provided by client.


Overview

Finding ID Version Rule ID IA Controls Severity
V-21950 3.150 SV-25273r2_rule Medium
Description
If a service principle name (SPN) is provided by the client, it is validated against the server's list of SPNs, aiding in the prevention of spoofing.
STIG Date
Windows 7 Security Technical Implementation Guide 2016-07-22

Details

Check Text ( None )
None
Fix Text (F-65539r2_fix)
Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Microsoft network server: Server SPN target name validation level" to "Accept if provided by client".