In accordance to the recent question Why is TCP more secure than UDP?. How would an "attack" look when it comes to the practical aspect? A great example would be the use of TCP or UDP for Microsoft Remote Desktop (RDP) sessions using the
mstsc command in Windows.
It's known to usually have way better user experience and speed when using UDP instead of TCP. As Steve Sether answered the point especially is to have an established connection first. Also he stated it depends on the application's implementation which seems a bit like a blackbox to me.
If TCP is more "secure", how would a practical UDP "attack" look, for example during the initiation of a MS RDP connection? In other words, would it technically be possible to spoof anything during initiation of such session over UDP, that would not be possible using TCP?