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Hacking Exposed VoIP: Voice Over IP Security Secrets & Solutions Paperback – November 28, 2006

ISBN-13: 978-0072263640 ISBN-10: 0072263644 Edition: 1st

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Product Details

  • Series: Hacking Exposed
  • Paperback: 539 pages
  • Publisher: McGraw-Hill Osborne Media; 1 edition (November 28, 2006)
  • Language: English
  • ISBN-10: 0072263644
  • ISBN-13: 978-0072263640
  • Product Dimensions: 9.1 x 7.4 x 1.2 inches
  • Shipping Weight: 2.1 pounds
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (6 customer reviews)
  • Amazon Best Sellers Rank: #571,049 in Books (See Top 100 in Books)

Editorial Reviews

About the Author

David Endler is the Director of Security Research for TippingPoint, a division of 3Com. Previously, he performed security research for Xerox Corporation, the NSA, and MIT.  Endler is also the chairman and founder of the Voice over IP Security Alliance.

Mark Collier is CTO for SecureLogix Corporation.  He is an expert author and frequent presenter on the topic of VoIP security. Collier is also a founding member of the Voice over IP Security Alliance.


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Customer Reviews

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Most Helpful Customer Reviews

11 of 11 people found the following review helpful By Richard Bejtlich on May 6, 2007
Format: Paperback
Hacking Exposed: VoIP (HE:V) is the sort of HE book I like. It's fashionable to think HE books are only suitable for script kiddies who run tools they don't understand against vulnerable services they don't recognize. I like HE books because the good ones explain a technology from a security standpoint, how to exploit it, and how to defend it. I thought HE:V did well in all three areas, even featuring original research and experiments to document and validate the authors' claims.

HE:V is a real eye-opener for those of us who don't perform VoIP pen testing or assessments. It's important to remember that the original HE books were written by Foundstone consultants who put their work experience in book form. HE books that continue this tradition tend to be successful, and HE:V is no exception. Good HE books also introduce a wide variety of tools and techniques to exploit weaknesses in targets, and HE:V also delivers in this respect. HE:V also extends attacks beyond what most people recognize. For example, everyone probably knows about low-level exploitation of VoIP traffic for call interception and manipulation. However, chapter 6 discusses application-level interception.

HE:V goes the extra mile by introducing tools written by the authors specifically to implement attacks. In at least one case the authors also provide a packet capture (for the Skinny protocol) which I particularly appreciate. HE:V also looks ahead to attacks that are appearing but not yet prevalent, like telephony spam and voice phishing. Taken together, all of these features result in a great book. You should already be familiar with the common enumeration and exploitation methods found in HE 5th Ed, because the HE:V authors wisely avoid repeating material in other books (thank you).

If you want to understand VoIP, how to attack it, and how to defend it, I highly recommend reading HE:V. The book is clear, thorough, and written by experts.
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5 of 5 people found the following review helpful By Martyn Davies on August 10, 2007
Format: Paperback
In this book David Endler and Mark Collier have pulled together a vast wealth of material about hacking VoIP networks at every possible level. More than this, they have also created new value in the form of software test tools, which they have published on an accompanying website. It really is a must-have reference book for anyone working in VoIP.

Chapter 1 talks about Google hacking, or in other words, using the Internet to find out things about a target network. They show that Google can be a crucial tool in finding out what type of hardware and software you use in your VoIP networks, and in some cases will give vital clues even about how to login to the management systems of your network from the Internet. If this doesn't scare the bejesus out of you, then proceed on to further chapters about more VoIP-specific issues.

Chapters 2 and 3 detail the kind of tools a hacker might use to scan your network and enumerate all the devices, i.e. build their own map of how your network is laid out, right down to the telephone numbers and MAC addresses of desktop phones. Chapter 4 talks about Denial-of-Service, and the kind of attack resources that hackers might use to cripple a telephony network.

Chapter 5 is on VoIP eavesdropping, talking about some existing tools that can be used for this (Oreka, Wireshark and the unpleasantly named vomit), and as in the earlier chapters, some suggestions on how to defend against such a type of threat. Chapter 6 goes further to explain how a VoIP man-in-the-middle attack might be mounted, giving the possibility not just to listen, but to modify, replace or remix the audio stream.

Chapters 7, 8, 9 talk about specific platform threats, namely to Cisco Unified CallManager, Avaya Communication Manager and the Asterisk PBX.
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3 of 3 people found the following review helpful By Mark R. Lindsey on March 12, 2009
Format: Paperback Verified Purchase
This book has a lot of good background info on VoIP systems. It covers Cisco Call Manager, Avaya, and Asterisk VoIP systems in depth.

It's definitely focused on SIP and RTP, and focused on Enterprise VoIP deployments. The authors appear to be unaware of hosted / carrier VoIP, such as used by Verizon. The authors don't mention anything about BroadSoft BroadWorks, MetaSwitch, Acme Packet, Sylantro, or others, though their general technology coverage certainly relates to these systems. I also wish they had considered some of the very popular SIP phones -- e.g., Linksys and Polycom.

They give examples of using numerous VoIP security-scanning / exploit tools. The theoretical attacker in the book likely has physical access to the target network, or at least layer-2 (Ethernet) access. Many of the attacks are much more difficult or impossible if you're attacking across the Internet.

Still, coverage of the tools is very useful to a Carrier VoIP researcher.
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