Lantronix xPrintServer Remote Command Execution / CSRF

`Hi,  
  
The Lantronix xPrintServer is a small Linux powered print server for iOS. Main configuration happens through a web interface.  
  
The problem is that the configuration happens through some ‘RPC’ interface; the web interfaces uses AJAX requests to talk to a CGI script that simply executes shell commands given to it. Take a look at the following screenshot:  
  
http://i.imgur.com/gjbZhXZ.png  
  
So.. that’s not really so secure. Launching a request to http://myip/ips?OP=rpc&c=whoami&a=0 tells me that everything is running as root.   
  
To make matters worse:  
- The CGI script is accessible without needing to use credentials   
- The devices uses bonjour that by defaults registers itself as xprintserver.local in the local network  
- The device has no CSRF protection  
  
Example code that allows any website to fetch the Linux version.  
<script src="http://xprintserver.local/ips?OP=rpc&c=echo%20var%20version=%27%22%27%20$(uname%20-a)%27%22%27&a=0”></script>   
  
This vulnerability is not reported to the vendor yet (because I need to register talk to their support).  
  
Greetings,  
Jim  
  
  
`