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Old 08-27-2009, 06:27 AM   #1
noir911
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Registered: Apr 2004
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[OT] unencrypted protocols in the local subnet - switched network


I was having a discussion with someone who said that
telnet, FTP, HTTP plain-text authentication in the local subnet is ok because it's a switched network. Also, that these protocols are not good over the net but in a local subnet they are just fine.

I know that someone can plug a hub in the network port and connect 2 (or more) PCs and see the packets. Also, heard about ettercap but haven't really delved into it. I know dsniff was written to prove the point that unencrypted protocols are bad.

Would like to get opinion about unencrypted protocols over a switched networks.

Thanks.
 
Old 08-27-2009, 07:47 AM   #2
JulianTosh
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Registered: Sep 2007
Location: Las Vegas, NV
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bad dont use them. arp poisoning can still be used to intercept traffic on a switched network. there can be mitigating factors, but in this day and age, there is a easy-to-deploy, secure alternative in probably every case.
 
  


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