The vulnerability is real a function of your application and not the open
port in the firewall.  Firewall-1 can take any external IP address and port
and convert it to any internal address and port you choose.  The question:
Have you engineer your application and application security to withstand an
attack?

> -----Original Message-----
> From: Ivan Fox [SMTP:[EMAIL PROTECTED]]
> Sent: Wednesday, October 20, 1999 9:00 PM
> To:   Firewall-Wizards; [EMAIL PROTECTED]
> Subject:      vulnerability of non-standard ports
> 
> We may need to open a port or two for "home-grown" applications, e.g.
> tcp-1234, tcp-2345, on a Checkpoint Firewall-1 v4.0.  Would it cause any
> security concerns?  Any comments/suggestions are greatly appreciated.
>  
> Thanks,
>  
> Ivan.
>  
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