you can give a chance to moltosenso Network Manager IRON.
It can be downloaded for free from:http://www.moltosenso.com/#/pc==/client/fe/download.php
The user manual can be downloaded from here:http://db.tt/KEi96BPB
Actually, MNM IRON does not just recognize ports where the Xbee is plugged in, but has exactly the same functionalities of X-CTU.
It's just a matter of discovering them.
We are available to help further if the manual is not clear, but thousands of users have abandoned X-CTU for our software since it's easier, best looking, more reliable and, of course, cross-platform (Win/Linux/Mac).
Then, if you have more specific needs, have a look to the moltosenso Network Manager BRONZE or SILVER releases.
You will find professional software to manage Digi International Xbee modules...
Hope you can change your mind about the usability of our product!