I've heard of a tool called ModemSwitcher from ABSecure that "isolates and protects your LAN while your workstation or other workstations of your LAN are connected to the Internet by modem". For more information, check : http://www.absecure.com/products.html#ModemSwitcher There are also "PBX firewalls" that can (like the TeleWall Firewall, http://www.securelogix.com/telewall ) "detect, log, and control all inbound and outbound telecom network activity based on user defined, automated security policies". I hope this would be helpful. Regards, Hadi El-KHoury Information Security Consultant Lynx Technologies http://www.lynx-technologies.com -----Message d'origine----- De : Peter Van Epp [mailto:vaneppat_private] Envoyé : mercredi 19 mars 2003 19:50 À : pen-testat_private Objet : modem protective device? 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 ---------------------------------------------------------------------------- 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 : Thu Mar 20 2003 - 05:58:35 PST