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RE: VOIP Security
From: "Hayes, Ian" <Ian.Hayes () wynnlasvegas com>
Date: Fri, 23 Sep 2005 08:12:29 -0700

There is the possibility that you can attack the company's switch,
possibly getting into it and reconfigure lines or phone features.
Depending on how the phone system is set up, there are possibilities for
other mischief - some setups let you use the phone as a hub for computer
network connectivity. With a little effort you may be able to spoof a
target VoIP phone, or possibly the boot/tftp server and serve your own
config and code to any phones that are booting up. The possibilities are
nearly endless unless the VoIP network has had a lot of serious thought
and effort into how it has been built and secured.

Ian Hayes | Senior Systems Engineer
Wynn Las Vegas
3131 South Las Vegas Blvd, Las Vegas, NV 89109
Ph (702) 770-3252 | Cell (702) 266-6002
Ian.hayes () wynnlasvegas com
-----Original Message-----
From: Alvin [mailto:alvind12 () ftml net]
Sent: Wednesday, September 21, 2005 9:16 PM
To: pen-test () securityfocus com
Subject: VOIP Security


What can be the security implication if I bypassed firewall for VOIP
traffic and directly route it from router to PABX.

Assuming - This VOIP traffic is coming from trusted partner's network
but I dont have any control on thier nework at this point of time.

Comments and Suggestions willl be appreciated !!!

  alvind12 () ftml net

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