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RPC_NT_BINDING_HAS_NO_AUTH
The binding is unauthenticated when authentication is required
RPC bindings are not authenticated unless authentication information is configured. This status indicates that an operation required auth data, but the binding handle does not contain it.
Use this to distinguish an absent security setup from bad credentials. If no call to set binding authentication was made, changing the password or certificate will not affect this status.
What to inspect
- Check whether RpcBindingSetAuthInfo or RpcBindingSetAuthInfoEx was called for the binding.
- Record authentication level, service, authorization service and server principal name.
- Do not confuse missing authentication with access denied after authentication.
References
- Microsoft: RpcBindingSetAuthInfoEx
- Microsoft Open Specifications: MS-RPCE
- Microsoft Open Specifications: NTSTATUS values
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