Newsletter Sign-Up FaceBook del.icio.us Twitter Subscribe

Mar 4th, 2009 | Irwin Lazar

Protecting SIP

Irwin Lazar

The SIP working group within the ITEF has just published an Internet Draft describing SIP’s vulnerability to relay attack and some possible mitigations. The attack method is via a “man-in-the-middle” approach whereby the attacker inserts himself in between the victim and their outbound proxy server, and initiates a session with the victim.

Given SIP’s role as the common protocol within a unified communications architecture, it’s important to be aware of security threats, especially as organizations widen their adoption of SIP-to-SIP extranet connectivity and SIP trunking for PSTN access.

Bookmark and Share

One Response to “Protecting SIP”

  1. Andrew joneson 06 Jun 2009 at 11:23 am

    It’s a well written article.It is really booming these days.Hence,we should try it out……

Comments RSS

Leave a Reply