01_597302 _ffirs.qxd 8/4/05 7:08 PM Page i Hacking Wireless Networks FOR DUMmIES‰ by Kevin Beaver and Peter T.Davis Foreword by Devin K. Akin Chief Technology Officer, The Certified Wireless Network Professional (CWNP) Program 01_597302 _ffirs.qxd 8/4/05 7:08 PM Page i 01_597302 _ffirs.qxd 8/4/05 7:08 PM Page i Hacking Wireless Networks FOR DUMmIES‰ by Kevin Beaver and Peter T.Davis Foreword by Devin K. Akin Chief Technology Officer, The Certified Wireless Network Professional (CWNP) Program 01_597302 _ffirs.qxd 8/4/05 7:08 PM Page ii Hacking Wireless Networks For Dummies® Published by Wiley Publishing, Inc. 111 River Street Hoboken, NJ 07030-5774 www.wiley.com Copyright © 2005 by Wiley Publishing, Inc., Indianapolis, Indiana Published by Wiley Publishing, Inc., Indianapolis, Indiana Published simultaneously in Canada No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except as permit- ted under Sections 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of the Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 646-8600. 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Library of Congress Control Number: 2005924619 ISBN-13: 978-0-7645-9730-5 ISBN-10: 0-7645-9730-2 Manufactured in the United States of America 10 9 8 7 6 5 4 3 2 1 1O/ST/QY/QV/IN 01_597302 _ffirs.qxd 8/4/05 7:08 PM Page iii About the Authors Kevin Beaver is founder and information security advisor with Principle Logic, LLC, an Atlanta-based information-security services firm. He has over 17 years of experience in the IT industry and specializes in information security assessments for those who take security seriously — and incident response for those who don’t. Before starting his own information-security services business, Kevin served in various information-technology and secu- rity roles for several healthcare, e-commerce, financial, and educational institutions. Kevin is author of Hacking For Dummies as well as the e-book The Definitive Guide to Email Management and Security (Realtimepublishers.com). In addi- tion, Kevin co-authored The Practical Guide to HIPAA Privacy and Security Compliance (Auerbach Publications). He was also a contributing author and editor of Healthcare Information Systems, 2nd ed., (Auerbach Publications), and technical editor of Network Security For Dummies. Kevin is a regular columnist and information-security expert for SearchSecurity. com, SearchWindowsSecurity.com, SearchNetworking.com, SearchExchange. com, and SearchSmallBizIT.com. He also serves as a contributing editor for HCPro’s Briefings on HIPAA newsletter and is a Security Clinic Expert for ITsecurity.com. In addition, Kevin’s information-security work has been published in Information Security Magazine, SecurityFocus.com, and Computerworld.com. Kevin is an information-security instructor for the Southeast Cybercrime Institute, and frequently speaks on information security at various conferences for CSI, TechTarget, IIA, SecureWorld Expo, and the Cybercrime Summit. Kevin earned his bachelor’s degree in Computer Engineering Technology from Southern Polytechnic State University and his master’s degree in Management of Technology from Georgia Tech. He also holds MCSE, Master CNE, and IT Project+ certifications. Kevin can be reached at [email protected]. Peter T. Davis (CISA, CMA, CISSP, CWNA, CCNA, CMC, CISM) founded Peter Davis+Associates (a very original name) as a firm specializing in the security, audit, and control of information. A 30-year information-systems veteran, Mr. Davis’s career includes positions as programmer, systems analyst, security administrator, security planner, information-systems auditor, and consultant. Peter is also the founder (and past President) of the Toronto ISSA chapter, past Recording Secretary of the ISSA’s International Board, and past Computer Security Institute Advisory Committee member. Mr. Davis has written or co-written numerous articles and 10 books, including Wireless Networks For Dummies and Securing and Controlling Cisco Routers. In addition, Peter was 01_597302 _ffirs.qxd 8/4/05 7:08 PM Page iv the technical editor for Hacking For Dummies and Norton Internet Security For Dummies. Peter is listed in the International Who’s Who of Professionals. In addition, he was only the third editor in the three-decade history of EDPACS, a publication in the field of security, audit, and control. He finds time to be a part-time lecturer in data communications at Seneca College (http://cs.senecac.on.ca). He lives with his wife Janet, daughter Kelly, two cats, and a dog in Toronto, Ontario. Dedication Little G — this one’s for you. You’re such a great motivator and inspiration to me — more than words can say. Thanks for reminding me of what’s really important. Thanks for being you. —Kevin To all my friends and enemies. Hopefully, the first group is bigger than the second. —Peter Authors’ Acknowledgments Kevin: Thanks to Melody Layne, our acquisitions editor, for approaching me about this project and getting the ball rolling. I’d like to thank our project editor, Chris Morris, as well as Kevin Kirschner and all the behind-the-scenes copy editors for pulling this thing together. Many thanks to my co-author Peter T. Davis for working with me on this book. It has been an honor and a pleasure. I’d also like to thank Hugh Pepper, our technical editor, for the feedback and insight he gave us during the technical editing process. Also, many thanks to Devin Akin with Planet3 Wireless for writing the fore- word. Major kudos too for all the positive things you’ve done for the industry with the CWNP program. You’re a true wireless network pioneer. Many thanks to Ronnie Holland with WildPackets, Chia Chee Kuan with AirMagnet, Michael Berg with TamoSoft, Matt Foster with BLADE Software, Ashish Mistry with AirDefense, and Wayne Burkan with Interlink Networks for helping out with my requests. 01_597302 _ffirs.qxd 8/4/05 7:08 PM Page v Thanks, appreciation, and lots of love to Mom and Dad for all the values and common sense you instilled in me long ago. I wouldn’t be where I’m at today without it. Finally, to my dear wife Amy for all her support during this book. Yet another one I couldn’t have done without you! You’re the best. Peter: Melody Layne (our acquisitions editor) for pitching the book to the editorial committee and getting us a contract. As always, much appreciated. Chris Morris for helping us bring this project to fruition. Kudos, Chris. Hugh Pepper, tech editor, for his diligence in reviewing the material. Thanks, Hugh, for stepping in and stepping up. Peter would like to thank Kevin Beaver for suggesting we write this together. Thanks Kevin. Peter would also like to thank Ken Cutler, Gerry Grindler, Ronnie Holland, Carl Jackson, Ray Kaplan, Kevin Kobelsky, Carrie Liddie, Dexter Mills Jr. and Larry Simon for responding to a request for wireless infor- mation. Thanks for answering the call for help. And a really big shout-out to John Selmys and Danny Roy for their efforts. Thanks, guys. The provided information shows in this book. Peter would be remiss should he not thank the NHL and NHLPA for canceling the hockey season.