Basic VoIP security threat tutorial, ARP poisoning
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A very basic tutorial from techcentric.org on how to STOP VoIP security threats , CAIN, ARP and MITM attacks. Explains that an ARP Poisoning attack is a man in the middle attack (intercepting data in this case VoIP packets).
They recommend that you use SKYPE instead of SIP to avoid man in the middle attacks; or download ZPhone, it works with most SIP clients, or put your VoIP calls on VPN.
See the SIP protocol diagram (right)more information on what is happening during a SIP based VoIP call
Not the most insightful tutorial and a few people have commented that there were a few inaccuracies or that it was too basic, I thought it was a great tutorial for a ‘first timer’ trying to get a handle of what is going on with VoIP security threats. I would definitely need more details from here though.
