Authorized Character Search Results

How To: Use Command Injection to Pop a Reverse Shell on a Web Server

Command injection is a technique used by hackers to execute system commands on a server, usually via a web application or some kind of GUI. This can happen when an application provides some sort of functionality to the user involving the use of system commands. When the input is not properly sanitized, commands not originally intended to be run are allowed to be executed.

How To: Use Beginner Python to Build a Brute-Force Tool for SHA-1 Hashes

Developers creating login systems know better than to store passwords in plain text, usually storing hashes of a password to prevent storing the credentials in a way a hacker could steal. Due to the way hashes work, not all are created equal. Some are more vulnerable than others, and a little Python could be used to brute-force any weak hashes to get the passwords they were created from.

How To: Extract & Back Up All of Your Text Messages on Android

It always helps to be prepared for the worst. This applies to our phones now more than ever, as we depend on them to be our record keepers for text messages from friends, family, and coworkers. If you ever lose or severely damage your phone, having a backup of your precious texts gives you the peace of mind of knowing that you can always get them back.

Instagram 101: How to Create Polls to Get Questions Answered by Followers & Other Users

Whether it's for your company, your professional image, or just your personal account, making a poll on Instagram is a great way to reach out to followers, friends, family, and other users to measure their thoughts and opinions about any given topic. Instagram for Android and iOS makes it fun and simple to do so, offering the same tools to professional and personal users alike.

Exploit Development: How to Read & Write to a Program's Memory Using a Format String Vulnerability

Format strings are a handy way for programmers to whip up a string from several variables. They are designed to save the programmer time and allow their code to look much cleaner. Unbeknownst to some programmers, format strings can also be used by an attacker to compromise their entire program. In this guide, we are going to look at just how we can use a format string to exploit a running program.

The Hacks of Mr. Robot: How to Use the Shodan API with Python to Automate Scans for Vulnerable Devices

Shodan calls itself "the search engine for internet-connected devices." With so many devices connected to the internet featuring varying levels of security, the special capabilities of this search engine mean it can provide a list of devices to test and attack. In this tutorial, we'll use Python to target specific software vulnerabilities and extract vulnerable target IP addresses from Shodan.

Steganography: How to Hide Secret Data Inside an Image or Audio File in Seconds

Steganography is the art of hiding information in plain sight, and in this tutorial, I'll show you how to use Steghide — a very simple command line tool to do just that. In addition, I'll go over a bit of conceptual background to help you understand what's going on behind the scenes. This is a tool that's simple, configurable, and only takes a few seconds to hide information in many file types.

How To: Create a Strong (Or Stronger) Passcode for Your iPhone

When you first set up an iPhone, you'll be prompted to create a six-digit passcode to unlock your screen and access certain system settings. If you skip this step, you can always go back and create one, which we highly recommend. Without a passcode, everything on your iPhone is accessible by anyone who gets their hands on it — nosey friends, hackers, thieves, local law enforcement, the FBI — and you don't want that, do you?

How To: Create a Reusable Burner OS with Docker, Part 2: Customizing Our Hacking Container

In the first part of my containers series, we learned how to install Docker on our local machine, pull down "hello-world" and Ubuntu containers, SSH into containers, and install software when in a container. Now, we're going to work on building, customizing, and storing our refined hacking Ubuntu container. Before we dive right in, though, let's make sure we still have a functional Docker installation.

Hack Like a Pro: Snort IDS for the Aspiring Hacker, Part 2 (Setting Up the Basic Configuration)

Welcome back, my tenderfoot hackers! As you should know from before, Snort is the most widely deployed intrusion detection system (IDS) in the world, and every hacker and IT security professional should be familiar with it. Hackers need to understand it for evasion, and IT security professionals to prevent intrusions. So a basic understanding of this ubiquitous IDS is crucial.

How To: Build a Directory Brute Forcing Tool in Python

While attempting to hack a web app, there may come a point where the attacker may have to escape the default directory in order to access unauthorized files. This is known as a directory traversal attack. Much as the name implies, this attack involved traversing the servers directories. But in order to move to an unauthorized directory, we need to know where those directories are. Today we'll be building a tool to brute force these directory locations based on HTTP response codes. Before we g...

News: Our Favorite WTF Gadgets from CES 2016

There was lots of new tech to check out at CES 2016, but you could argue that the majority of the big-ticket items weren't the most unique things in the world. Thankfully, there were a few innovative, unconventional ideas on display, and here are some of our favorites.

How To: Linux Basics Tips

Hi nullbytes! I've been recently reading the whole Linux Basics for the Aspiring Hacker series and felt like it was missing some stuff I know, so I felt like sharing it with anyone who might find it useful too.