ffi rs.indd 01:50:14:PM 02/28/2014 Page ii Android™ Hacker’s Handbook ffi rs.indd 01:50:14:PM 02/28/2014 Page i ffi rs.indd 01:50:14:PM 02/28/2014 Page ii Android™ Hacker’s Handbook Joshua J. Drake Pau Oliva Fora Zach Lanier Collin Mulliner Stephen A. Ridley Georg Wicherski ffi rs.indd 01:50:14:PM 02/28/2014 Page iii Android™ Hacker’s Handbook Published by John Wiley & Sons, Inc. 10475 Crosspoint Boulevard Indianapolis, IN 46256 www.wiley.com Copyright © 2014 by John Wiley & Sons, Inc., Indianapolis, Indiana ISBN: 978-1-118-60864-7 ISBN: 978-1-118-60861-6 (ebk) ISBN: 978-1-118-92225-5 (ebk) Manufactured in the United States of America 10 9 8 7 6 5 4 3 2 1 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 permitted under Sections 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of the Publisher, or autho- rization 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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If this book refers to media such as a CD or DVD that is not included in the version you purchased, you may download this material at http:// booksupport.wiley.com. For more information about Wiley products, visit www.wiley.com. Library of Congress Control Number: 2013958298 Trademarks: Wiley and the Wiley logo are trademarks or registered trademarks of John Wiley & Sons, Inc. and/or its affi liates, in the United States and other countries, and may not be used without written permission. Android is a trademark of Google, Inc. All other trademarks are the property of their respective owners. John Wiley & Sons, Inc., is not associated with any product or vendor mentioned in this book. ffi rs.indd 01:50:14:PM 02/28/2014 Page iv About the Authors Joshua J. Drake is a Director of Research Science at Accuvant LABS. Joshua focuses on original research in areas such as reverse engineering and the analy- sis, discovery, and exploitation of security vulnerabilities. He has over 10 years of experience in the information security fi eld including researching Linux security since 1994, researching Android security since 2009, and consulting with major Android OEMs since 2012. In prior roles, he served at Metasploit and VeriSign’s iDefense Labs. At BlackHat USA 2012, Georg and Joshua demon- strated successfully exploiting the Android 4.0.1 browser via NFC. Joshua spoke at REcon, CanSecWest, RSA, Ruxcon/Breakpoint, Toorcon, and DerbyCon. He won Pwn2Own in 2013 and won the DefCon 18 CTF with the ACME Pharm team in 2010. Pau Oliva Fora is a Mobile Security Engineer with viaForensics. He has pre- viously worked as R+D Engineer in a wireless provider. He has been actively researching security aspects on the Android operating system since its debut with the T-Mobile G1 on October 2008. His passion for smartphone security has manifested itself not just in the numerous exploits and tools he has authored but in other ways, such as serving as a moderator for the very popular XDA- Developers forum even before Android existed. In his work, he has provided consultation to major Android OEMs. His close involvement with and observa- tion of the mobile security communities has him particularly excited to be a part of pulling together a book of this nature. Zach Lanier is a Senior Security Researcher at Duo Security. Zach has been involved in various areas of information security for over 10 years. He has been conducting mobile and embedded security research since 2009, v ffi rs.indd 01:50:14:PM 02/28/2014 Page v vi About the Authors ranging from app security, to platform security (especially Android), to device, network, and carrier security. His areas of research interest include both offensive and defensive techniques, as well as privacy-enhancing technologies. He has presented at various public and private industry conferences, such as BlackHat, DEFCON, ShmooCon, RSA, Intel Security Conference, Amazon ZonCon, and more. Collin Mulliner is a postdoctoral researcher at Northeastern University. His main interest lies in security and privacy of mobile and embedded systems with an emphasis on mobile and smartphones. His early work dates back to 1997, when he developed applications for Palm OS. Collin is known for his work on the (in) security of the Multimedia Messaging Service (MMS) and the Short Message Service (SMS). In the past he was mostly interested in vulnerability analysis and offensive security but recently switched his focus the defensive side to develop mitigations and countermeasures. Collin received a Ph.D. in computer science from Technische Universität Berlin; earlier he completed his M.S. and B.S. in computer science at UC Santa Barbara and FH Darmstadt. Ridley (as his colleagues refer to him) is a security researcher and author with more than 10 years of experience in software development, software security, and reverse engineering. In that last few years Stephen has presented his research and spoken about reverse engineering and software security on every continent (except Antarctica). Previously Stephen served as the Chief Information Security Offi cer of Simple.com, a new kind of online bank. Before that, Stephen was senior researcher at Matasano Security and a founding member of the Security and Mission Assurance (SMA) group at a major U.S defense contractor, where he specialized in vulnerability research, reverse engineering, and “offensive software” in support of the U.S. Defense and Intelligence community. At pres- ent, Stephen is principal researcher at Xipiter (an information security R&D fi rm that has also developed a new kind of low-power smart-sensor device). Recently, Stephen and his work have been featured on NPR and NBC and in Wired, the Washington Post, Fast Company, VentureBeat, Slashdot, The Register, and other publications. Georg Wicherski is Senior Security Researcher at CrowdStrike. Georg particularly enjoys tinkering with the low-level parts in computer security; hand-tuning custom-written shellcode and getting the last percent in exploit reliability stable. Before joining CrowdStrike, Georg worked at Kaspersky and McAfee. At BlackHat USA 2012, Joshua and Georg demonstrated successfully exploiting the Android 4.0.1 browser via NFC. He spoke at REcon, SyScan, BlackHat USA and Japan, 26C3, ph-Neutral, INBOT, and various other confer- ences. With his local CTF team 0ldEur0pe, he participated in countless and won numerous competitions. ffi rs.indd 01:50:14:PM 02/28/2014 Page vi About the Technical Editor Rob Shimonski (www.shimonski.com) is a best-selling author and editor with over 15 years’ experience developing, producing and distributing print media in the form of books, magazines, and periodicals. To date, Rob has successfully created over 100 books that are currently in circulation. Rob has worked for countless companies that include CompTIA, Microsoft, Wiley, McGraw Hill Education, Cisco, the National Security Agency, and Digidesign. Rob has over 20 years’ experience working in IT, networking, systems, and security. He is a veteran of the US military and has been entrenched in security topics for his entire professional career. In the military Rob was assigned to a communications (radio) battalion supporting training efforts and exercises. Having worked with mobile phones practically since their inception, Rob is an expert in mobile phone development and security. vii ffi rs.indd 01:50:14:PM 02/28/2014 Page vii ffi rs.indd 01:50:14:PM 02/28/2014 Page viii Credits Executive Editor Marketing