Showing posts with label hacking. Show all posts
Showing posts with label hacking. Show all posts

Gray Hat Hacking : The Ethical Hacker's Handbook Review

Gray Hat Hacking : The Ethical Hacker's Handbook
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Gray Hat Hacking : The Ethical Hacker's Handbook Review'Gray Hat Hacking' (GHH) is positioned as a next-generation book for so-called ethical hackers, moving beyond the tool-centric discussions of books like 'Hacking Exposed.' The authors leave their definition of 'gray hat' unresolved until ch 3, where they claim that a 'white hat' is a person who 'uncovers a vulnerability and exploits it with authorization;' a 'black hat' is one who 'uncovers a vulnerability and illegally exploits it and/or tells others how to;' and a 'gray hat' is one who 'uncovers a vulnerability, does not illegally exploit it or tell others how to do it, but works with the vendor.' I disagree and prefer SearchSecurity.com's definitions, where white hats find vulnerabilities and tell vendors without providing public exploit code; black hats find vulnerabilities, code exploits, and maliciously attack victims; and gray hats find vulnerabilities, publish exploits, but do not illegally use them. According to these more common definitions, the book should have been called 'White Hat Hacking.' I doubt it would sell as well with that title!
Content-wise, the book mixes ethical and legal advice with tool overviews and technical information. Many reviewers note the good legal overview in ch 3, where I found the tables summarizing various laws to be helpful. The authors provide a sound rationale for penetration testing: 'Nothing should be trusted until it is tested' (p. 13). I enjoyed the disclosure discussion in ch 3 as well. I liked the brief tool descriptions of Core IMPACT, Immunity Security's CANVAS, and the Metasploit Framework. Some of the other discussions (e.g., Amap, P0f, Ettercap) didn't go deeper than already published explanations of those same tools.
I found the technical material to be accurate albeit somewhat disorganized and in some cases far too shallow. For example, the authors provide 6 pages on Python (ch 6), 6 pages on C (ch 7), and a single 21 page chapter (ch 10) mentioning system calls, socket programming, and assembly language. On p 279 and several other places the authors admit their topic 'deserves a chapter to itself, if not an entire book!' They should have trusted their instincts and required readers to have prior knowledge of programming in low- and high-level languages prior to reading GHH. Instead, short sections that are too basic for the pros but too rushed for beginners detract from the book's focus.
The five authors clearly know their subjects, but they should have coordinated their chapters better. For example, ch 7 introduces using debuggers without even a description of their purpose. Six chapters later (in ch 13), we read a description of debugging only to be followed again by another discussion of debugging in ch 14. All of this should have been consolidated and rationalized.
I think McGraw-Hill/Osborne's second edition of GHH should seek to differentiate itself from more focused books like 'The Shellcoder's Handbook' (by Wiley) and 'Exploiting Software' (by Addison-Wesley). There is a market for high-end security books without sparse introductory material included for the benefit of beginners. Authors should either commit to the beginners and give enough information to enlighten them, or tell them to read foundational references first and concentrate on the more experienced audience. Authors like Allen Harper and Chris Eagle, winners of last year's 'Capture the Flag' contest at Def Con, can deliver the goods if not constrained by a publisher's desire to address as broad an audience as possible. I would not be surprised to see this book greatly expanded in a second edition, which I look forward to reading.Gray Hat Hacking : The Ethical Hacker's Handbook OverviewAnalyze your company's vulnerability to hacks with expert guidance from Gray Hat Hacking: The Ethical Hacker's Handbook. Discover advanced security tools and techniques such as fuzzing, reverse engineering, and binary scanning. Test systems using both passive and active vulnerability analysis. Learn to benefit from your role as a gray hat. Review ethical and legal issues and case studies. This unique resource provides leading-edge technical information being utilized by the top network engineers, security auditors, programmers, and vulnerability assessors. Plus, the book offers in-depth coverage of ethical disclosure and provides a practical course of action for those who find themselves in a "disclosure decision" position.

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Programming Linux Hacker Tools Uncovered: Exploits, Backdoors, Scanners, Sniffers, Brute-Forcers, Rootkits (Uncovered series) Review

Programming Linux Hacker Tools Uncovered: Exploits, Backdoors, Scanners, Sniffers, Brute-Forcers, Rootkits (Uncovered series)
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Programming Linux Hacker Tools Uncovered: Exploits, Backdoors, Scanners, Sniffers, Brute-Forcers, Rootkits (Uncovered series) ReviewI cracked the book to start reading and you are immediately shoved into programming an xping program. I had to stop and learn the parts of C that I am not as familier with. If you are looking for a great book to get you started on writing sec tools, then this is it!Programming Linux Hacker Tools Uncovered: Exploits, Backdoors, Scanners, Sniffers, Brute-Forcers, Rootkits (Uncovered series) OverviewUncovering the development of the hacking toolset under Linux, this book teaches programmers the methodology behind hacker programming techniques so that they can think like an attacker when developing a defense. Analyses and cutting-edge programming are provided of aspects ofeach hacking item and its source code—including ping and traceroute utilities, viruses, worms, Trojans, backdoors, exploits (locals and remotes), scanners (CGI and port), smurf and fraggle attacks, and brute-force attacks.In addition to information on how to exploit buffer overflow errors in the stack, heap and BSS, and how to exploit format-string errors and other less common errors, this guide includes the source code of all the described utilities on the accompanying CD-ROM.

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Puzzles for Hackers Review

Puzzles for Hackers
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Puzzles for Hackers ReviewThe book gathers together a disparate and funky collection of programming tidbits and trivia. Only some of these are actually coding problems. For example, in one section it asks if you recognise certain trademarks or marketing diagrams that were used in the recent past.
The reverse engineering chapter might be an eye opener of what can be deduced from an executable, by using a good tool like SoftIce.
For many programmers, there should be something new in this book.Puzzles for Hackers OverviewThese puzzles and mind-benders serve as a way to train logic and help developers, hackers, and system administrators discover unconventional solutions to common IT problems. Users will learn to find bugs in source code, write exploits, and solve nonstandard coding tasks and hacker puzzles. Cryptographic puzzles, puzzles for Linux and Windows hackers, coding puzzles, and puzzles for web designers are included.

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The Giant Black Book of Computer Viruses Review

The Giant Black Book of Computer Viruses
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The Giant Black Book of Computer Viruses ReviewMark Ludwig is rekoned to be one of the worlds leading experts in the field of computer viruses and this book (with disk) goes to prove that he is. Written for those with a good understanding of computer languages, this is no trip for the feint hearted. I recommend this to anyone wanting to know how they can improve their systems form malicious attack, BUT dont use the disk if you don't know what you are doing as the demo viruses contained COULD do serious damage. Defineatly a recommended read.The Giant Black Book of Computer Viruses Overview

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Visualizing Data: Exploring and Explaining Data with the Processing Environment Review

Visualizing Data: Exploring and Explaining Data with the Processing Environment
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Visualizing Data: Exploring and Explaining Data with the Processing Environment ReviewThis book allowed me to quickly create some simple applications using the processing API. So, in that respect, the book was successful. However, the book falls short in three respects.
1) One would expect a book with the title "Visualizing Data" to be crammed with pictures showing many different data visualizations. However, this book has relatively few. Every colleague of mine who passed by my desk and picked up the book had the exact same reaction.
2) The processing language is touted as a means for people unfamiliar with programming to get up to speed with visualization. However, I would be very surprised if anyone with little programming experience would get much out of this book.
3) Don't expect to use this book as a reference for the processing language. It is basically just a collection of half explained examples. Consider for example the function smooth(). This function appears in almost every example but forget about trying to find an explanation of what the function does in the book.
The book is probably worth buying to get up to speed quickly but plan on spending a significant amount of time sifting through the processing.org website and other online resources before being able to get anything non-trivial done. And if you don't already know Java then don't expect to accomplish anything even modestly complex without a lot of outside help.
Visualizing Data: Exploring and Explaining Data with the Processing Environment Overview
Enormous quantities of data go unused or underused today, simply because people can't visualize the quantities and relationships in it. Using a downloadable programming environment developed by the author, Visualizing Data demonstrates methods for representing data accurately on the Web and elsewhere, complete with user interaction, animation, and more. How do the 3.1 billion A, C, G and T letters of the human genome compare to those of a chimp or a mouse? What do the paths that millions of visitors take through a web site look like? With Visualizing Data, you learn how to answer complex questions like these with thoroughly interactive displays. We're not talking about cookie-cutter charts and graphs. This book teaches you how to design entire interfaces around large, complex data sets with the help of a powerful new design and prototyping tool called "Processing". Used by many researchers and companies to convey specific data in a clear and understandable manner, the Processing beta is available free. With this tool and Visualizing Data as a guide, you'll learn basic visualization principles, how to choose the right kind of display for your purposes, and how to provide interactive features that will bring users to your site over and over. This book teaches you:

The seven stages of visualizing data -- acquire, parse, filter, mine, represent, refine, and interact
How all data problems begin with a question and end with a narrative construct that provides a clear answer without extraneous details
Several example projects with the code to make them work
Positive and negative points of each representation discussed. The focus is on customization so that each one best suits what you want to convey about your data set
The book does not provide ready-made "visualizations" that can be plugged into any data set. Instead, with chapters divided by types of data rather than types of display, you'll learn how each visualization conveys the unique properties of the data it represents -- why the data was collected, what's interesting about it, and what stories it can tell. Visualizing Data teaches you how to answer questions, not simply display information.

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Hacking: The Art of Exploitation, 2nd Edition Review

Hacking: The Art of Exploitation, 2nd Edition
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Hacking: The Art of Exploitation, 2nd Edition Review
Contents
This is the second edition of a well known book about hacking and contains a lot about hacking. Jon Erickson has expanded the book from the first edition doubling the number of pages to 450 pages and a Linux based Live-CD is also included.
I don't own the first edition, since I had to choose between Hacking by Jon Erickson and The Shellcoders Handbook (first edition, it is also in 2nd ed. now). I choose the Shellcoders handbook, which I have considered my bible for buffer overflows and hacking.
Now that I have read Jon Ericksons book about hacking I have two bibles, both excellent and well written, both covering some of the same stuff - but in very different ways.
This book details the steps done to perform buffer overflows on Linux on the x86 architecture. So detailed that any computer science student can do it, and they should. Every computer science student or aspiring programmer should be forced to read this book along with another book called 19 deadly sins of software programming.
That alone would improve internet security and program reliability in the future. Why you may ask, because this book teaches hacking, and how you can get started hacking.
Not hacking as doing criminal computer break ins, but thinking like an old-school hacker - doing clever stuff, seeing the things others don't. This book contains the missing link back to the old days, where hackers were not necessarily bad guys. Unfortunately today the term hacker IS dead in the public eye, it HAS been maimed, mutilated and the war about changing it back to the old meaning is over. (Actually this war was fought in the 1990's but some youngsters new to hacking still think it can be won, don't waste your time.) The word hacking can still be used in both ways, just make sure the receiver knows what you are talking about :-)
This book teaches hacking in the old sense of the word and contains the explanation that most others books don't - and at the same time it introduces all the basic skills for performing various types of overflow attacks. Then the book also digress into some wireless security and even WEP cracking, but this part is pretty slim, not bad, just only a few pages. This is OK, since I think of this more as an example of extending the hacking into new areas and hopefully inspires more people to look into wireless security.
The best part about this book is that it is not just a book with a random Live-CD. It is an inspiration and your fingers will itch to get started trying the examples explained and experiment with the programs. This alone is the single feature that makes this book worth it, you will do the exercises and learn from them. Learn a lot.
To sum it up this books contains clever tricks and easy to follow exercises, so you can learn to apply them.
Target audience
This book is for anyone interested in hacking and developing exploits. While the primary target audience is newcomers to this field I benefitted from the thorough walkthrough of the basics once again. This book kept reminding me about things I have forgotten and also some new things and tricks I hadn't thought of myself.Conclusion
If you are a beginning hacker and want to get started, but was confused
by various text files found on the internet, this is the book to buy.
If you want to learn how to do basic stuff and get started thinking like a hacker, this is the book to buy.
If you are a software programmer that has started to think about software security, this is the book to buy.
This book goes from beginning hacker to inspired intermediate hacker and explains everything in depth and is well planned and you will be able to extract an awful lot of information about the way programs really work after reading this book.
If you read this book from cover to cover you will be able to follow most other references about hacking, books, papers, zines etc. from the internet.
So this book is recommended for anyone interested in hacking and could be a nice start to having your own library about hacking. Reading this book first will also help you understand other books about hacking better and get more information from them by thinking in the right way.
Then later you could expand this library with books like, Steven Levy Hackers, Steven Levy Crypto, Shellcoders Handbook, Clifford Stoll Cuckoos Egg and other references.
I am not missing much from this book, but a short explanation how you could run this CD along with your usual operating system, using something like VMware Player would have been nice.
Links:
The home page for this book is: http://www.nostarch.com/hacking2.htm
Hacking: The Art of Exploitation, 2nd Edition Overview
Hacking is the art of creative problem solving, whether that means finding an unconventional solution to a difficult problem or exploiting holes in sloppy programming. Many people call themselves hackers, but few have the strong technical foundation needed to really push the envelope.

Rather than merely showing how to run existing exploits, author Jon Erickson explains how arcane hacking techniques actually work. To share the art and science of hacking in a way that is accessible to everyone, Hacking: The Art of Exploitation, 2nd Edition introduces the fundamentals of C programming from a hacker's perspective.

The included LiveCD provides a complete Linux programming and debugging environment-all without modifying your current operating system. Use it to follow along with the book's examples as you fill gaps in your knowledge and explore hacking techniques on your own. Get your hands dirty debugging code, overflowing buffers, hijacking network communications, bypassing protections, exploiting cryptographic weaknesses, and perhaps even inventing new exploits. This book will teach you how to:

Program computers using C, assembly language, and shell scripts
Corrupt system memory to run arbitrary code using buffer overflows and format strings
Inspect processor registers and system memory with a debugger to gain a real understanding of what is happening
Outsmart common security measures like nonexecutable stacks and intrusion detection systems
Gain access to a remote server using port-binding or connect-back shellcode, and alter a server's logging behavior to hide your presence
Redirect network traffic, conceal open ports, and hijack TCP connections
Crack encrypted wireless traffic using the FMS attack, and speed up brute-force attacks using a password probability matrix

Hackers are always pushing the boundaries, investigating the unknown, and evolving their art. Even if you don't already know how to program, Hacking: The Art of Exploitation, 2nd Edition will give you a complete picture of programming, machine architecture, network communications, and existing hacking techniques. Combine this knowledge with the included Linux environment, and all you need is your own creativity.


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