modem protective device?

From: Peter Van Epp (vaneppat_private)
Date: Wed Mar 19 2003 - 10:49:44 PST

  • Next message: Frank Knobbe: "RE: Microsoft Windows 2000 WebDAV Buffer Overflow Vulnerability"

    	While not strictly on topic, assuming they are still made this may
    be of interest to those of you concerned with modems and wardialing.
    	Some 20 years ago in a previous life I had a modem protective device
    (a modem condom!) which fronted the modem on the phone line and when dialed
    supplied a sythisized voice which asked you to "enter your code". You then
    fed it a code via DTMF and it (if it liked your code) faked ring to the 
    attached modem and then passed the call through when the modem answered. This 
    is of course very good protection against war dialing (which is the pen-test 
    relevance that I hope will get this through moderation :-)), since the war 
    dialer gets a human (or semi human) voice not modem tones. The problem is that 
    several google searches on "wardialing modem protection" in various 
    combinations turn up lots of articles on war dialing but no references that I 
    can see to the product that I want again. Does anyone know a source of such
    a product? I find it hard to believe that such a useful device has died out!
    
    Peter Van Epp / Operations and Technical Support 
    Simon Fraser University, Burnaby, B.C. Canada
    
    ----------------------------------------------------------------------------
    Did you know that you have VNC running on your network? 
    Your hacker does. Plug your security holes now! 
    Download a free 15-day trial of VAM:
    http://www2.stillsecure.com/download/sf_vuln_list.html
    



    This archive was generated by hypermail 2b30 : Wed Mar 19 2003 - 13:07:31 PST