[VOIPSEC] Actual Attacks

Thomas Howe howethomas at aol.com
Fri Feb 25 10:18:20 CST 2005


Hmmmm.... no one's stepping up and giving us actual attacks here...

Well, I'll give you a few.  I was involved in Tangerine, which was 
awesome in that we had over 200 service provider installations (some 
even made money!) and here's some of the things we saw...

1) We saw many hacking attempts (some succesful) on the computers that 
hosted our software.  Now, they had nothing to do with VoIP, but they 
brought down service anyways.

2) I've seen DDOS service attacks, but only by accident. We've had soft 
clients get pointed to a gateway instead of the proxy, and the gateways 
get flooded with registrations that it can't handle.

3) I've seen internal people purposely bring down VoIP networks by 
misconfiguration.

4) I've seen customers reverse engineer IP addresses from far end 
gateways to establish business relationships outside of the intermediary 
   that orginally brought them together.

5) I've seen many, many, many, (many, many) grey market carriers work at 
  putting more traffic through routes than they had persmission to, mask 
origination points to avoid billing, etc.

Those are the basic things I've seen- if any really good ones come to 
mind, I'll forward them.

Tom






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