Welcome back, my hacker novitiates! In the previous two posts in this series, we looked at the basics of buffer overflows. In this post, we will look at one technique for finding buffer overflows. We will try to send random, oversized, and invalid data at a variable to see whether we can make it crash or overflow. This process is known as fuzzing. It is often the first step to developing an exploit, as we need to find some variable that is susceptible to overflowing.
It's been a while when the major web browsers first introduced HTTP Strict Transport Security, which made it more difficult to carry Man In The Middle (MITM) attacks (except IE, as always, which will support HSTS since Windows 10, surprised?).
In this simple tutorial you will be shown step-by-step how to write local shellcode for use on 64-Bit Linux systems. Shellcode is simple code, usually written in assembly that is used as payload in exploits such as buffer overflow attacks. Payloads are the arrow head of an exploit: though the rest of the arrow is important for the delivery of the attack, the arrow head deals the killing blow. In reality, payloads are slightly less exciting yet far more interesting and intelligent than medieva...
Hi everyone. Recently I've been studying some topics about Assembly, memory and exploitation, and thought I could write something nice, easy and fast about it, just because I like to share what I learn, and probably sharing what you learn and trying to explain it to a stranger is the best way to learn it better. It worked for me, and I hope it will be useful for you too.
The ability to make a meal for yourself used to be one of those life skills you had to learn or otherwise you would starve, but the rise of convenience foods, takeout, and other aspects of modern living have made it entirely possible to be a grown person and not know what to do in the kitchen.
A few years ago I went hog-wild trying to achieve a zero-waste lifestyle. I didn't succeed, but the experiment taught me that we throw away things we could—and should—be using more.
In recent years, Hollywood has taken a shine to hackers, with hackers appearing in almost every heist or mystery movie now. This can be both good and bad for our profession. As we know, whichever way Hollywood decides to depict our profession is how most people will perceive it.
Food labeling is a tricky beast. For instance, when I read the words "cage-free" on an egg carton, I think it means that happy chickens frolic in a sunlit meadow all the livelong day until they're gently herded into a clean, sweet-smelling coop to lay a few dozen eggs—which I can purchase for a reasonable price, of course.
Probably SSH is not as clean and fast as other useful tools like netcat, but it has some features which are very useful, and when you'll need them, here's how to behave with that huge amount of computers all over your house.
Climbing into bed and shutting your eyes each night is heavenly—but waking up the next morning isn't. We all hate dragging ourselves out of the comfort of sleep and into the groggy, exhausting work day. Yet starting your day doesn't have to be awful if you know how to hack your sleep cycles and get the most out of your shut-eye.
For the novice cook, fungi can be weird because, well, they're fungi. However, if you've been afraid to get acquainted with mushrooms, you've been missing out. Vegetarians love mushrooms and with good reason.
About ten years ago, Western research figured out that green tea was a nutritional powerhouse. After all, in Asian countries where green tea is consumed throughout the day, cancer rates tend to be much lower, although there are probably other factors contributing to that fact, like less processed food and red meat in the standard Asian diet.
One of the biggest problems in data security is authentication of data and its source. How can Alice be certain that the executable in her inbox is from the venerable Bob, and not from the not-so-venerable Oscar? Clearly Alice wants to know because if this file is actually sent to her by Oscar, the file might not be a game, but a trojan that can do anything on her computer such as sift through her email and passwords, upload her honeymoon pictures, or even turn on microphones and webcams. Thi...
I love cryptography. It is like a great gigantic puzzle for me to solve. However, it is more important than that. It is also how we keep secrets safe. Not just sorta safe either, but really safe.
In one of Apple's newer ads, the company claims that "more photos are taken with the iPhone than any other camera." If this is in fact true, then it might also be appropriate to say that more photos are accidentally deleted on iPhones than any other camera.
If I were to lose access to the entire internet for the rest of my life, one of the websites I would miss the most would have to be Wikipedia. Wikipedia has ended countless arguments, informed me of how old and single some of my favorite actresses are, and helped me brush up on thousands of historical topics.
Video: . Step 1: Today We Are Going to Draw a City in One Point Perspective -- Buildings in the City Going into One Point Perspective. Let's Start Our Drawing with the Vanishing Point and Horizon Line. In Order to Get the Feel of the Drawing We Need to Determine Where Vanishing Point Will Be. Feel Free to Improvise and Change It Depending on What You Want to Achieve. Start Mapping Lines in.
It's a controversial headline, I know, but bear with me and I'll explain in due course. Disclaimer: I was once a child, and I played lots of video games. I didn't look anything like this child.
Will the predicted apocalyptic date—December 21st, 2012—really be the end of the world? In this ongoing five-part series, we examine what would happen if zombies, nuclear weapons, cyber wars, earthquakes, or aliens actually destroyed our planet—and how you might survive.
I've had a handlebar mustache for about five years now, and I've learned a lot over those years about how to grow and care for it. I will now share all of that information with you! Hopefully this will encourage you to grow one for Movember! The first thing I want to address right now is that I do not use wax on a daily basis. I kind of hate using wax, but I still do it on occasion. I shall teach you my secrets, starting from the beginning!
You could already schedule an email to send on a specific day and time in Apple's Mail app, but that functionality is now also available in the Messages app. What's even better is that scheduled messages sync across your iPhone, iPad, and Mac, something you don't get in the Mail app.
If you're ever curious about your iPhone's battery health, there are easy-to-access stats that let you know the last charge amount, which apps are eating away at most of your power, and even your battery's remaining capacity. Now, a new update makes it easier to know how well your battery is doing.
A massive new feature just hit Apple Music, and it's the biggest thing to happen to Apple Music since Apple Music was even a thing.
When iOS 16.0 was still in early beta testing, Apple teased us with a slew of new Books actions in the Shortcuts app, but none of them materialized in iOS 16.0 or 16.1. That changes with Apple's latest software update for iPhone.
Unlike Apple Maps, Google Maps can tell you when a restaurant, bar, club, or other business you're thinking of visiting is busy. It's extremely helpful if you want to avoid peak times or wait for the place to be empty. If you can't pry yourself away from using Apple Maps, there's an easy alternative to see the popular times of most businesses.
Ever since Facebook announced its partnership with Luxxotica brand Ray-Ban to produce smartglasses, the augmented reality space has been on high alert awaiting more details.
Over the past few weeks, Google, Snap, and Facebook have all taken their turns to show off their new augmented reality technologies. This week, it was Apple's turn, with new AR features for iOS 15 along with new capabilities for developers.
When we got our first look at US Army soldiers testing Microsoft's modified HoloLens 2 last year, it still looked very much like the commercial edition, with some additional sensors attached.
The surging activity in augmented reality in both the business and consumer sectors is being matched with a wealth of updates and partnerships from Snap Inc.
Thanks to the grandest of puns, May the 4th is Star Wars Day. And what better way to pay tribute to the space opera than with the augmented reality superpowers of Snapchat.
Apple just seeded developers the sixth iOS 14.5 beta today, Wednesday, Mar. 31. The update includes a calibration for battery health measurements for the iPhone 11 line, as well as two new Siri voices.
While Apple has been rather secretive about its work on AR wearables (despite the abundance of leaks revealing details about their unannounced devices), Facebook has been rather chatty about its plans for smartglasses.
Hand tracking is a key component in making natural interactions with augmented reality content, and one of the leading technology makers in this discipline has just improved on its tracking engine.
Quietly, while the rest of the world was engaged in pandemic and political concerns, a few weeks ago Facebook casually upgraded its Spark AR platform with what it calls Unified Effect Publishing.
What does it mean when a software company obsessively focused on innovating the way we use our mobile devices to see and communicate with the world adds virtual voice agents? Possibly e-commerce magic, with a powerful layer of augmented reality.
As if telemarketers weren't bad enough, now we have robocalls and spoofed numbers to deal with. Many of us get a least one spam call per day, if not much more than that. Google's Phone app has always been great at managing these calls, but it's been exclusive to their Pixel phones — until recently, that is.
Apple just pushed out iOS 14 to everyone on Sept. 16, but you may not want to jump right into updating your iPhone. If you have Automatic Updates turned on, you may want to turn it off real quick before it tries to download and install iOS 14 before you're ready.
Google has added a flurry of new features to its YouTube Music recently to prepare it to replace Google Play Music, which will be sent to live on a farm with Google Reader, Inbox by Gmail, and other sunsetted Google products by the end of the year.
Out of all the myths about the iPhone's battery, one that's very true is that charging your phone overnight is bad news. Keeping the charge level at 100% puts the battery under strain, which can permanently damage it. Apple took steps to address the issue in iOS 13, where your battery stops charging when it hits 80% in some scenarios, but that's not always enough.
While Apple and Samsung have started integrating depth sensors into the iPad Pro and Galaxy smartphones, more advanced AR experiences are arriving for standard smartphone cameras on Android devices.
