Cisco Hostname

The Cisco Command for setting teh hostname is very easy

 evil-router>
 evil-router>enable
 evil-router#conf t
 Enter configuration commands, one per line.  End with CNTL/Z.
 evil-router(config)#hostname my_new_routername  
 my_new_routername#

You see it on the Promt on the CLI and on the Webserver (ip http server)

Sample:

But what happens, if we change the Name to one with HTML Tags or more advanced start a script.

 hostname <SCRIPT>alert("Hello_Cisco")</SCRIPT>

and here the complet config session:

 evil-router>
 evil-router>enable
 evil-router#conf t
 Enter configuration commands, one per line.  End with CNTL/Z.
 evil-router(config)#hostname <SCRIPT>alert("Hello_Cisco")</SCRIPT>  
 % Hostname contains one or more illegal characters. 
 <SCRIPT>alert("Hello(config)#

and the Output on the webbrowser

This is stange, because the message from the router see's, that they knows, that there are illegal characters

% Hostname contains one or more illegal characters.

Currently there are some problems, to enter a "SPACE" Character.
i am looking for a solution. send me your ideas.

On the newest IOS 124-20.T it is fiexd on my cisco 1803