VU#576688: Microsoft windows RDP Network Level Authenticaion can bypass the Windows lock screen

Microsoft Windows Remote Desktop supports a feature called Network Level Authentication(NLA),which moves the authentication aspect of a remote session from the RDP layer to the network-layer. The use of NLA is recommended to reduce the attack surface of systems exposed using the RDP protocol. In Windows a session can be locked,which presents the user with a screen that requires authentication to continue using the session. Session locking can happen over RDP in the same way that a local session can...