A Bug Hunter's Diary

A Guided Tour Through the Wilds of Software Security

Author: Tobias Klein

Publisher: No Starch Press

ISBN: 1593273851

Category: COMPUTERS

Page: 208

View: 2189

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Klein tracks down and exploits bugs in some of the world's most popular programs. Whether by browsing source code, poring over disassembly, or fuzzing live programs, readers get an over-the-shoulder glimpse into the world of a bug hunter as Klein unearths security flaws and uses them to take control of affected systems.

A Bug Hunter's Diary

A Guided Tour Through the Wilds of Software Security

Author: Tobias Klein

Publisher: No Starch Press

ISBN: 1593274157

Category: Computers

Page: 200

View: 4242

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Seemingly simple bugs can have drastic consequences, allowing attackers to compromise systems, escalate local privileges, and otherwise wreak havoc on a system. A Bug Hunter's Diary follows security expert Tobias Klein as he tracks down and exploits bugs in some of the world's most popular software, like Apple's iOS, the VLC media player, web browsers, and even the Mac OS X kernel. In this one-of-a-kind account, you'll see how the developers responsible for these flaws patched the bugs—or failed to respond at all. As you follow Klein on his journey, you'll gain deep technical knowledge and insight into how hackers approach difficult problems and experience the true joys (and frustrations) of bug hunting. Along the way you'll learn how to: –Use field-tested techniques to find bugs, like identifying and tracing user input data and reverse engineering –Exploit vulnerabilities like NULL pointer dereferences, buffer overflows, and type conversion flaws –Develop proof of concept code that verifies the security flaw –Report bugs to vendors or third party brokers A Bug Hunter's Diary is packed with real-world examples of vulnerable code and the custom programs used to find and test bugs. Whether you're hunting bugs for fun, for profit, or to make the world a safer place, you'll learn valuable new skills by looking over the shoulder of a professional bug hunter in action.

The Tangled Web

A Guide to Securing Modern Web Applications

Author: Michal Zalewski

Publisher: No Starch Press

ISBN: 1593273886

Category: Computers

Page: 320

View: 7865

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Modern web applications are built on a tangle of technologies that have been developed over time and then haphazardly pieced together. Every piece of the web application stack, from HTTP requests to browser-side scripts, comes with important yet subtle security consequences. To keep users safe, it is essential for developers to confidently navigate this landscape. In The Tangled Web, Michal Zalewski, one of the world's top browser security experts, offers a compelling narrative that explains exactly how browsers work and why they're fundamentally insecure. Rather than dispense simplistic advice on vulnerabilities, Zalewski examines the entire browser security model, revealing weak points and providing crucial information for shoring up web application security. You'll learn how to: * Perform common but surprisingly complex tasks such as URL parsing and HTML sanitization * Use modern security features like Strict Transport Security, Content Security Policy, and Cross-Origin Resource Sharing * Leverage many variants of the same-origin policy to safely compartmentalize complex web applications and protect user credentials in case of XSS bugs * Build mashups and embed gadgets without getting stung by the tricky frame navigation policy * Embed or host user-supplied content without running into the trap of content sniffing For quick reference, "Security Engineering Cheat Sheets" at the end of each chapter offer ready solutions to problems you're most likely to encounter. With coverage extending as far as planned HTML5 features, The Tangled Web will help you create secure web applications that stand the test of time.

Buffer Overflow Attacks

Detect, Exploit, Prevent

Author: Jason Deckard

Publisher: Elsevier

ISBN: 9780080488424

Category: Computers

Page: 304

View: 3788

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The SANS Institute maintains a list of the "Top 10 Software Vulnerabilities." At the current time, over half of these vulnerabilities are exploitable by Buffer Overflow attacks, making this class of attack one of the most common and most dangerous weapon used by malicious attackers. This is the first book specifically aimed at detecting, exploiting, and preventing the most common and dangerous attacks. Buffer overflows make up one of the largest collections of vulnerabilities in existence; And a large percentage of possible remote exploits are of the overflow variety. Almost all of the most devastating computer attacks to hit the Internet in recent years including SQL Slammer, Blaster, and I Love You attacks. If executed properly, an overflow vulnerability will allow an attacker to run arbitrary code on the victim’s machine with the equivalent rights of whichever process was overflowed. This is often used to provide a remote shell onto the victim machine, which can be used for further exploitation. A buffer overflow is an unexpected behavior that exists in certain programming languages. This book provides specific, real code examples on exploiting buffer overflow attacks from a hacker's perspective and defending against these attacks for the software developer. Over half of the "SANS TOP 10 Software Vulnerabilities" are related to buffer overflows. None of the current-best selling software security books focus exclusively on buffer overflows. This book provides specific, real code examples on exploiting buffer overflow attacks from a hacker's perspective and defending against these attacks for the software developer.

Sockets, Shellcode, Porting, and Coding: Reverse Engineering Exploits and Tool Coding for Security Professionals

Author: James C Foster

Publisher: Elsevier

ISBN: 9780080489728

Category: Computers

Page: 700

View: 4460

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The book is logically divided into 5 main categories with each category representing a major skill set required by most security professionals: 1. Coding – The ability to program and script is quickly becoming a mainstream requirement for just about everyone in the security industry. This section covers the basics in coding complemented with a slue of programming tips and tricks in C/C++, Java, Perl and NASL. 2. Sockets – The technology that allows programs and scripts to communicate over a network is sockets. Even though the theory remains the same – communication over TCP and UDP, sockets are implemented differently in nearly ever language. 3. Shellcode – Shellcode, commonly defined as bytecode converted from Assembly, is utilized to execute commands on remote systems via direct memory access. 4. Porting – Due to the differences between operating platforms and language implementations on those platforms, it is a common practice to modify an original body of code to work on a different platforms. This technique is known as porting and is incredible useful in the real world environments since it allows you to not “recreate the wheel. 5. Coding Tools – The culmination of the previous four sections, coding tools brings all of the techniques that you have learned to the forefront. With the background technologies and techniques you will now be able to code quick utilities that will not only make you more productive, they will arm you with an extremely valuable skill that will remain with you as long as you make the proper time and effort dedications. *Contains never before seen chapters on writing and automating exploits on windows systems with all-new exploits. *Perform zero-day exploit forensics by reverse engineering malicious code. *Provides working code and scripts in all of the most common programming languages for readers to use TODAY to defend their networks.

Fuzzing

Brute Force Vulnerability Discovery

Author: Michael Sutton,Adam Greene,Pedram Amini

Publisher: Pearson Education

ISBN: 0321680855

Category: Computers

Page: 576

View: 3737

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This is the eBook version of the printed book. If the print book includes a CD-ROM, this content is not included within the eBook version. FUZZING Master One of Today’s Most Powerful Techniques for Revealing Security Flaws! Fuzzing has evolved into one of today’s most effective approaches to test software security. To “fuzz,” you attach a program’s inputs to a source of random data, and then systematically identify the failures that arise. Hackers have relied on fuzzing for years: Now, it’s your turn. In this book, renowned fuzzing experts show you how to use fuzzing to reveal weaknesses in your software before someone else does. Fuzzing is the first and only book to cover fuzzing from start to finish, bringing disciplined best practices to a technique that has traditionally been implemented informally. The authors begin by reviewing how fuzzing works and outlining its crucial advantages over other security testing methods. Next, they introduce state-of-the-art fuzzing techniques for finding vulnerabilities in network protocols, file formats, and web applications; demonstrate the use of automated fuzzing tools; and present several insightful case histories showing fuzzing at work. Coverage includes: • Why fuzzing simplifies test design and catches flaws other methods miss • The fuzzing process: from identifying inputs to assessing “exploitability” • Understanding the requirements for effective fuzzing • Comparing mutation-based and generation-based fuzzers • Using and automating environment variable and argument fuzzing • Mastering in-memory fuzzing techniques • Constructing custom fuzzing frameworks and tools • Implementing intelligent fault detection Attackers are already using fuzzing. You should, too. Whether you’re a developer, security engineer, tester, or QA specialist, this book teaches you how to build secure software.

The Art of Software Security Assessment

Identifying and Preventing Software Vulnerabilities

Author: Mark Dowd,John McDonald,Justin Schuh

Publisher: Pearson Education

ISBN: 0132701936

Category: Computers

Page: 1200

View: 6812

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The Definitive Insider’s Guide to Auditing Software Security This is one of the most detailed, sophisticated, and useful guides to software security auditing ever written. The authors are leading security consultants and researchers who have personally uncovered vulnerabilities in applications ranging from sendmail to Microsoft Exchange, Check Point VPN to Internet Explorer. Drawing on their extraordinary experience, they introduce a start-to-finish methodology for “ripping apart” applications to reveal even the most subtle and well-hidden security flaws. The Art of Software Security Assessment covers the full spectrum of software vulnerabilities in both UNIX/Linux and Windows environments. It demonstrates how to audit security in applications of all sizes and functions, including network and Web software. Moreover, it teaches using extensive examples of real code drawn from past flaws in many of the industry's highest-profile applications. Coverage includes • Code auditing: theory, practice, proven methodologies, and secrets of the trade • Bridging the gap between secure software design and post-implementation review • Performing architectural assessment: design review, threat modeling, and operational review • Identifying vulnerabilities related to memory management, data types, and malformed data • UNIX/Linux assessment: privileges, files, and processes • Windows-specific issues, including objects and the filesystem • Auditing interprocess communication, synchronization, and state • Evaluating network software: IP stacks, firewalls, and common application protocols • Auditing Web applications and technologies

How We Test Software at Microsoft

Author: Alan Page,Ken Johnston,Bj Rollison

Publisher: Microsoft Press

ISBN: 0735638314

Category: Computers

Page: 448

View: 7863

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It may surprise you to learn that Microsoft employs as many software testers as developers. Less surprising is the emphasis the company places on the testing discipline—and its role in managing quality across a diverse, 150+ product portfolio. This book—written by three of Microsoft’s most prominent test professionals—shares the best practices, tools, and systems used by the company’s 9,000-strong corps of testers. Learn how your colleagues at Microsoft design and manage testing, their approach to training and career development, and what challenges they see ahead. Most important, you’ll get practical insights you can apply for better results in your organization. Discover how to: Design effective tests and run them throughout the product lifecycle Minimize cost and risk with functional tests, and know when to apply structural techniques Measure code complexity to identify bugs and potential maintenance issues Use models to generate test cases, surface unexpected application behavior, and manage risk Know when to employ automated tests, design them for long-term use, and plug into an automation infrastructure Review the hallmarks of great testers—and the tools they use to run tests, probe systems, and track progress efficiently Explore the challenges of testing services vs. shrink-wrapped software

Move Fast and Break Things

How Facebook, Google, and Amazon Cornered Culture and Undermined Democracy

Author: Jonathan Taplin

Publisher: Little, Brown

ISBN: 0316275743

Category: Computers

Page: 320

View: 2964

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*The book that started the Techlash* A stinging polemic that traces the destructive monopolization of the Internet by Google, Facebook and Amazon, and that proposes a new future for musicians, journalists, authors and filmmakers in the digital age. Featured in New York Times' Paperback Row A New York Times Book Review Editors' ChoiceAn Amazon Best Business & Leadership Book of 2017 Longlisted for Financial Times/McKinsey Business Book of the Year 2017A strategy+business Best Business Book of 2017 Move Fast and Break Things is the riveting account of a small group of libertarian entrepreneurs who in the 1990s began to hijack the original decentralized vision of the Internet, in the process creating three monopoly firms--Facebook, Amazon, and Google--that now determine the future of the music, film, television, publishing and news industries. Jonathan Taplin offers a succinct and powerful history of how online life began to be shaped around the values of the men who founded these companies, including Peter Thiel and Larry Page: overlooking piracy of books, music, and film while hiding behind opaque business practices and subordinating the privacy of individual users in order to create the surveillance-marketing monoculture in which we now live. The enormous profits that have come with this concentration of power tell their own story. Since 2001, newspaper and music revenues have fallen by 70 percent; book publishing, film, and television profits have also fallen dramatically. Revenues at Google in this same period grew from $400 million to $74.5 billion. Today, Google's YouTube controls 60 percent of all streaming-audio business but pay for only 11 percent of the total streaming-audio revenues artists receive. More creative content is being consumed than ever before, but less revenue is flowing to the creators and owners of that content. The stakes here go far beyond the livelihood of any one musician or journalist. As Taplin observes, the fact that more and more Americans receive their news, as well as music and other forms of entertainment, from a small group of companies poses a real threat to democracy. Move Fast and Break Things offers a vital, forward-thinking prescription for how artists can reclaim their audiences using knowledge of the past and a determination to work together. Using his own half-century career as a music and film producer and early pioneer of streaming video online, Taplin offers new ways to think about the design of the World Wide Web and specifically the way we live with the firms that dominate it.

Silence on the Wire

A Field Guide to Passive Reconnaissance and Indirect Attacks

Author: Michal Zalewski

Publisher: No Starch Press

ISBN: 1593270461

Category: Computers

Page: 312

View: 9275

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"This book will be riveting reading for security professionals and students, as well as technophiles interested in learning about how computer security fits into the big picture and high-level hackers seeking to broaden their understanding of their craft."--BOOK JACKET.

Applied Cryptography

Protocols, Algorithms and Source Code in C

Author: Bruce Schneier

Publisher: John Wiley & Sons

ISBN: 1119439027

Category: Computers

Page: 784

View: 8294

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From the world's most renowned security technologist, Bruce Schneier, this 20th Anniversary Edition is the most definitive reference on cryptography ever published and is the seminal work on cryptography. Cryptographic techniques have applications far beyond the obvious uses of encoding and decoding information. For developers who need to know about capabilities, such as digital signatures, that depend on cryptographic techniques, there's no better overview than Applied Cryptography, the definitive book on the subject. Bruce Schneier covers general classes of cryptographic protocols and then specific techniques, detailing the inner workings of real-world cryptographic algorithms including the Data Encryption Standard and RSA public-key cryptosystems. The book includes source-code listings and extensive advice on the practical aspects of cryptography implementation, such as the importance of generating truly random numbers and of keeping keys secure. ". . .the best introduction to cryptography I've ever seen. . . .The book the National Security Agency wanted never to be published. . . ." -Wired Magazine ". . .monumental . . . fascinating . . . comprehensive . . . the definitive work on cryptography for computer programmers . . ." -Dr. Dobb's Journal ". . .easily ranks as one of the most authoritative in its field." -PC Magazine The book details how programmers and electronic communications professionals can use cryptography-the technique of enciphering and deciphering messages-to maintain the privacy of computer data. It describes dozens of cryptography algorithms, gives practical advice on how to implement them into cryptographic software, and shows how they can be used to solve security problems. The book shows programmers who design computer applications, networks, and storage systems how they can build security into their software and systems. With a new Introduction by the author, this premium edition will be a keepsake for all those committed to computer and cyber security.

Offensive Countermeasures

The Art of Active Defense

Author: John Strand,Paul Asadoorian,Ethan Robish,Benjamin Donnelly

Publisher: CreateSpace

ISBN: 9781490945064

Category: Computers

Page: 238

View: 8436

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Tired of playing catchup with hackers? Does it ever seem they have all of the cool tools? Does it seem like defending a network is just not fun? This books introduces new cyber-security defensive tactics to annoy attackers, gain attribution and insight on who and where they are. It discusses how to attack attackers in a way which is legal and incredibly useful.

Spam Nation

The Inside Story of Organized Cybercrime-from Global Epidemic to Your Front Door

Author: Brian Krebs

Publisher: Sourcebooks, Inc.

ISBN: 1402295634

Category: Political Science

Page: 256

View: 8983

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Now a New York Times bestseller! There is a Threat Lurking Online with the Power to Destroy Your Finances, Steal Your Personal Data, and Endanger Your Life. In Spam Nation, investigative journalist and cybersecurity expert Brian Krebs unmasks the criminal masterminds driving some of the biggest spam and hacker operations targeting Americans and their bank accounts. Tracing the rise, fall, and alarming resurrection of the digital mafia behind the two largest spam pharmacies-and countless viruses, phishing, and spyware attacks-he delivers the first definitive narrative of the global spam problem and its threat to consumers everywhere. Blending cutting-edge research, investigative reporting, and firsthand interviews, this terrifying true story reveals how we unwittingly invite these digital thieves into our lives every day. From unassuming computer programmers right next door to digital mobsters like "Cosma"-who unleashed a massive malware attack that has stolen thousands of Americans' logins and passwords-Krebs uncovers the shocking lengths to which these people will go to profit from our data and our wallets. Not only are hundreds of thousands of Americans exposing themselves to fraud and dangerously toxic products from rogue online pharmacies, but even those who never open junk messages are at risk. As Krebs notes, spammers can-and do-hack into accounts through these emails, harvest personal information like usernames and passwords, and sell them on the digital black market. The fallout from this global epidemic doesn't just cost consumers and companies billions, it costs lives too. Fast-paced and utterly gripping, Spam Nation ultimately proposes concrete solutions for protecting ourselves online and stemming this tidal wave of cybercrime-before it's too late. "Krebs's talent for exposing the weaknesses in online security has earned him respect in the IT business and loathing among cybercriminals... His track record of scoops...has helped him become the rare blogger who supports himself on the strength of his reputation for hard-nosed reporting." -Bloomberg Businessweek

Hacking the Xbox

An Introduction to Reverse Engineering

Author: Andrew Huang

Publisher: N.A

ISBN: 9781593270292

Category: Computers

Page: 272

View: 2561

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Provides step-by-step instructions on basic hacking techniques and reverse engineering skills along with information on Xbox security, hardware, and software.

Engineering a Compiler

Author: Keith Cooper,Linda Torczon

Publisher: Elsevier

ISBN: 9780080916613

Category: Computers

Page: 824

View: 1493

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This entirely revised second edition of Engineering a Compiler is full of technical updates and new material covering the latest developments in compiler technology. In this comprehensive text you will learn important techniques for constructing a modern compiler. Leading educators and researchers Keith Cooper and Linda Torczon combine basic principles with pragmatic insights from their experience building state-of-the-art compilers. They will help you fully understand important techniques such as compilation of imperative and object-oriented languages, construction of static single assignment forms, instruction scheduling, and graph-coloring register allocation. In-depth treatment of algorithms and techniques used in the front end of a modern compiler Focus on code optimization and code generation, the primary areas of recent research and development Improvements in presentation including conceptual overviews for each chapter, summaries and review questions for sections, and prominent placement of definitions for new terms Examples drawn from several different programming languages

Backtrack 5 Wireless Penetration Testing

Beginner's Guide

Author: Vivek Ramachandran

Publisher: Packt Publishing Ltd

ISBN: 184951559X

Category: Computers

Page: 220

View: 6142

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Wireless has become ubiquitous in today’s world. The mobility and flexibility provided by it makes our lives more comfortable and productive. But this comes at a cost – Wireless technologies are inherently insecure and can be easily broken. BackTrack is a penetration testing and security auditing distribution that comes with a myriad of wireless networking tools used to simulate network attacks and detect security loopholes. Backtrack 5 Wireless Penetration Testing Beginner’s Guide will take you through the journey of becoming a Wireless hacker. You will learn various wireless testing methodologies taught using live examples, which you will implement throughout this book. The engaging practical sessions very gradually grow in complexity giving you enough time to ramp up before you get to advanced wireless attacks. This book will take you through the basic concepts in Wireless and creating a lab environment for your experiments to the business of different lab sessions in wireless security basics, slowly turn on the heat and move to more complicated scenarios, and finally end your journey by conducting bleeding edge wireless attacks in your lab. There are many interesting and new things that you will learn in this book – War Driving, WLAN packet sniffing, Network Scanning, Circumventing hidden SSIDs and MAC filters, bypassing Shared Authentication, Cracking WEP and WPA/WPA2 encryption, Access Point MAC spoofing, Rogue Devices, Evil Twins, Denial of Service attacks, Viral SSIDs, Honeypot and Hotspot attacks, Caffe Latte WEP Attack, Man-in-the-Middle attacks, Evading Wireless Intrusion Prevention systems and a bunch of other cutting edge wireless attacks. If you were ever curious about what wireless security and hacking was all about, then this book will get you started by providing you with the knowledge and practical know-how to become a wireless hacker. Hands-on practical guide with a step-by-step approach to help you get started immediately with Wireless Penetration Testing

Reversing

Secrets of Reverse Engineering

Author: Eldad Eilam

Publisher: John Wiley & Sons

ISBN: 1118079760

Category: Computers

Page: 624

View: 3420

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Beginning with a basic primer on reverse engineering-including computer internals, operating systems, and assembly language-and then discussing the various applications of reverse engineering, this book provides readers with practical, in-depth techniques for software reverse engineering. The book is broken into two parts, the first deals with security-related reverse engineering and the second explores the more practical aspects of reverse engineering. In addition, the author explains how to reverse engineer a third-party software library to improve interfacing and how to reverse engineer a competitor's software to build a better product. * The first popular book to show how software reverse engineering can help defend against security threats, speed up development, and unlock the secrets of competitive products * Helps developers plug security holes by demonstrating how hackers exploit reverse engineering techniques to crack copy-protection schemes and identify software targets for viruses and other malware * Offers a primer on advanced reverse-engineering, delving into "disassembly"-code-level reverse engineering-and explaining how to decipher assembly language

Bitcoin for the Befuddled

Author: Conrad Barski,Chris Wilmer

Publisher: No Starch Press

ISBN: 1593275730

Category: Business & Economics

Page: 256

View: 2005

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Unless you’ve been living under a rock for the last couple of years, you’ve probably heard of Bitcoin—the game-changing digital currency used by millions worldwide. But Bitcoin isn't just another way to buy stuff. It’s an anonymous, revolutionary, cryptographically secure currency that functions without the oversight of a central authority or government. If you want to get into the Bitcoin game but find yourself a little confused, Bitcoin for the ­Befuddled may be just what you’re looking for. Learn what Bitcoin is; how it works; and how to acquire, store, and spend bitcoins safely and securely. You'll also learn: Bitcoin’s underlying cryptographic principles, and how bitcoins are createdThe history of Bitcoin and its potential impact on trade and commerceAll about the blockchain, the public ledger of Bitcoin transactionsHow to choose a bitcoin wallet that’s safe and easy to useHow to accept bitcoins as payment in your physical store or on your websiteAdvanced topics, including Bitcoin mining and Bitcoin programming With its non-technical language and patient, step-by-step approach to this fascinating currency, Bitcoin for the Befuddled is your ticket to getting started with Bitcoin. Get out from under the rock and get in the Bitcoin game. Just make sure not to lose your shirt.

Thinking Security

Stopping Next Year's Hackers

Author: Steven M. Bellovin

Publisher: Addison-Wesley Professional

ISBN: 0134278232

Category: Computers

Page: 400

View: 5222

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If you’re a security or network professional, you already know the “do’s and don’ts”: run AV software and firewalls, lock down your systems, use encryption, watch network traffic, follow best practices, hire expensive consultants . . . but it isn’t working. You’re at greater risk than ever, and even the world’s most security-focused organizations are being victimized by massive attacks. In Thinking Security, author Steven M. Bellovin provides a new way to think about security. As one of the world’s most respected security experts, Bellovin helps you gain new clarity about what you’re doing and why you’re doing it. He helps you understand security as a systems problem, including the role of the all-important human element, and shows you how to match your countermeasures to actual threats. You’ll learn how to move beyond last year’s checklists at a time when technology is changing so rapidly. You’ll also understand how to design security architectures that don’t just prevent attacks wherever possible, but also deal with the consequences of failures. And, within the context of your coherent architecture, you’ll learn how to decide when to invest in a new security product and when not to. Bellovin, co-author of the best-selling Firewalls and Internet Security, caught his first hackers in 1971. Drawing on his deep experience, he shares actionable, up-to-date guidance on issues ranging from SSO and federated authentication to BYOD, virtualization, and cloud security. Perfect security is impossible. Nevertheless, it’s possible to build and operate security systems far more effectively. Thinking Security will help you do just that.

Practical Malware Analysis

The Hands-On Guide to Dissecting Malicious Software

Author: Michael Sikorski,Andrew Honig

Publisher: No Starch Press

ISBN: 1593272901

Category: Computers

Page: 800

View: 3315

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Introduces tools and techniques for analyzing and debugging malicious software, discussing how to set up a safe virtual environment, overcome malware tricks, and use five of the most popular packers.