**Foreword by Avi Rubin. How does software break? How do attackers make software break on purpose? Why are firewalls, intrusion detection systems, and antivirus software not keeping out the bad guys? What tools can be used to break software? This book provides the answers. This book is studded with examples of real attacks, attack patterns, tools, and techniques used by bad guys to break software. If you want to protect your software from attack, you must first learn how real attacks are really carried out. Learn about: Why software exploit will continue to be a serious problem; When network security mechanisms do not work; Attack patterns; Reverse engineering; Classic attacks against server software; Surprising attacks against client software; Techniques for crafting malicious input; The technical details of buffer overflows; and Rootkits. This information needs to be understood and digested by security professionals so that they know the magnitude of the problem and they can begin to address it properly. Today, all developers should be security-minded. The knowledge here will arm you with a real understanding of the software security problem. Computing hardware would have no value without software; software tells hardware what to do. Software therefore must have special authority within computing systems. All computer security problems stem from that fact, and Exploiting Software: How to Break Code shows you how to design your software so it's as resistant as possible to attack. Sure, everything's phrased in offensive terms (as instructions for the attacker, that is), but this book has at least as much value in showing designers what sorts of attacks their software will face (the book could serve as a checklist for part of a pre-release testing regimen). Plus, the clever reverse-engineering strategies that Greg Hoglund and Gary McGraw teach will be useful in many legitimate software projects. Consider this a recipe book for mayhem, or a compendium of lessons learned by others. It depends on your situation. PHP programmers will take issue with the authors' blanket assessment of their language ("PHP is a study in bad security"), much of which seems based on older versions of the language that had some risky default behaviors--but those programmers will also double-check their servers' register_globals settings. Users of insufficiently patched Microsoft and Oracle products will worry about the detailed attack instructions this book contains. Responsible programmers and administrators will appreciate what amounts to documentation of attackers' rootkits for various operating systems, and will raise their eyebrows at the techniques for writing malicious code to unused EEPROM chips in target systems. --David Wall Topics covered : How to make software fail, either by doing something it wasn't designed to do, or by denying its use to its rightful users. Techniques--including reverse engineering, buffer overflow, and particularly provision of unexpected input--are covered along with the tools needed to carry them out. A section on hardware viruses is detailed and frightening. Praise for Exploiting Software “ Exploiting Software highlights the most critical part of the software quality problem. As it turns out, software quality problems are a major contributing factor to computer security problems. Increasingly, companies large and small depend on software to run their businesses every day. The current approach to software quality and security taken by software companies, system integrators, and internal development organizations is like driving a car on a rainy day with worn-out tires and no air bags. In both cases, the odds are that something bad is going to happen, and there is no protection for the occupant/owner. This book will help the reader understand how to make software quality part of the design―a key change from where we are today!” ― Tony Scott Chief Technology Officer, IS&S General Motors Corporation “It’s about time someone wrote a book to teach the good guys what the bad guys already know. As the computer security industry matures, books like Exploiting Software have a critical role to play.” ― Bruce Schneier Chief Technology Officer Counterpane Author of Beyond Fear and Secrets and Lies “ Exploiting Software cuts to the heart of the computer security problem, showing why broken software presents a clear and present danger. Getting past the ‘worm of the day’ phenomenon requires that someone other than the bad guys understands how software is attacked. This book is a wake-up call for computer security.” ― Elinor Mills Abreu Reuters’ correspondent “Police investigators study how criminals think and act. Military strategists learn about the enemy’s tactics, as well as their weapons and personnel capabilities. Similarly, information security professionals need to study their criminals and enemies, so we can tell the difference between popguns and weapons o