Welcome back, my greenhorn hackers!
Welcome back, my budding hackers! In my continuing effort to build your basic Linux skills for hacking, I want to show you how to build a secure "tunnel" to MySQL.
Welcome back, my hacker novitiates! If you have been following this new Snort series, you know that Snort is the world's most widely used intrusion detection/protection system. Now a part of the world's largest network equipment company, Cisco, it is likely to be found everywhere in one form or another. This makes a compelling argument for learning how to use it, as it will likely be a necessity in any security-related position.
Welcome back, my amateur hackers!
Hello aspiring hackers, It's been a while since I wrote a tutorial, so I figured I might just share one of the tools that I have created to help the community grow.
No doubt you've seen some of the hack logs being released. One part that stands out over and over again is the heavy database usage. It used to be early on that virus and hackers would destroy data, usually just for lulz. However, with the explosive commercial growth of the Internet, the real target is turning into data theft. You should learn how this happens so you can protect yourself accordingly. Let's take a look at what makes this possible and dare I say, easy.
Welcome back, my aspiring hackers! As mentioned several times in previous Linux tutorials, nearly everything in Linux is a file, and very often they are text files. For instance, all of the configuration files in Linux are text files. To reconfigure an application in Linux, we simply need to open the configuration file, change the text file, re-save, and then restart the application and our reconfiguration is applied.
SQL Injection 101: How to Fingerprint Databases & Perform General Reconnaissance for a More Successful Attack
Know thy enemy — wise words that can be applied to many different situations, including database hacking. It is essential to performing adequate reconnaissance on a system before even thinking about launching an attack — any type of attack — and this is no different for SQL injection.
Hello fellow Null-Byters! This is my first post so please be respectful and constructed criticism is much appreciated. I am no professional, however I believe that it is important to understand technologies before you go poking at them and trying to break them, I therefore decided to make this series. In this "tutorial" we are going to setup a web server with php and mysql. I will be doing this with a raspberry pi because a pi is quite versatile.
INTRODUCTION Hello dear null_byters here we go again with our third part of this serie.
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.
Welcome back, my greenhorn hackers! In a previous tutorial on hacking databases, I showed you how to find online databases and then how to enumerate the databases, tables, and columns. In this guide, we'll now exfiltrate, extract, remove—whatever term you prefer—the data from an online database.
This is my first How-To on Null-Byte, so I hope it's not too complicated written, because I am not a native english speaker. I don't use pictures, but this Tutorial is a good supplement for my updated Tutorial here.
Welcome back, my hacker apprentices! Although there is a multitude of different hacker types, the one target they all share is the database. I often refer to the database as the hacker's Holy Grail, or the ultimate prize for an effective hack.
For SQL injection, the next step after performing reconnaissance and gathering information about a database is launching an attack. But something seems off .. in the real world, it's usually not quite as simple as passing in a few fragments of SQL code to an input field and seeing all that glorious data displayed right in the browser. This is when more advanced techniques are needed.
Welcome back, my aspiring hackers!
Welcome back, my novice hackers! More and more, the world is turning to and adopting the smartphone platform as the digital device of choice. People are not only using smartphones for voice communication, but also web services, email, SMS, chatting, social networking, photography, payment services, and so on.
Welcome back, my hacker novitiates! Recently, I demonstrated a hack where you could redirect traffic intended for one site, such as bankofamerica.com, to your fake website. Of course, to really make this work, you would need to make a replica of the site you were spoofing, or better yet, you could simply simply make a copy of the original site and host it on your own server!
Hashes are commonly used to store sensitive information like credentials to avoid storing them in plaintext. With tools like Hashcat, it's possible to crack these hashes, but only if we know the algorithm used to generate the hash. Using a tool called hash-identifier, we can easily fingerprint any hashes to discover the right Hashcat mode to use to retrieve a password.
Information gathering is one of the most important steps in pentesting or hacking, and it can often be more rewarding to run things on the target itself as opposed to just running scripts against it remotely. With an SQL injection, a hacker can compromise a server and, ultimately, upload and run the "unix-privesc-check" script locally in order to further identify possible attack vectors.
I wrote a python script that allows you to easily ask what service runs on a specific port and vice-versa. Now, I am sure that such a program already exists on our lovely linux OS's, but... I didn't think of that before I started, and haven't found it yet. So if you haven't found it yet either, maybe you'll find this of some use. It's just called getport. If I have a port number, and want to know what services run on that port, I do:
Many of my aspiring hackers have written to me asking the same thing. "What skills do I need to be a good hacker?"
There are nearly 100,000 unique onion service addresses online with over two million people using Tor every single day. Join me as I explore a small fraction of what the Tor network has to offer.
The art of privilege escalation is a skill that any competent hacker should possess. It's an entire field unto itself, and while it's good to know how to perform the techniques involved manually, it's often more efficient to have a script automate the process. LinEnum is one such script that can be incredibly useful for privilege escalation on Linux systems.
Having an efficient workflow is an integral part of any craft, but it's especially important when it comes to probing apps for vulnerabilities. While Metasploit is considered the de facto standard when it comes to exploitation, it also contains modules for other activities, such as scanning. Case in point, WMAP, a web application scanner available for use from within the Metasploit framework.
Using Hydra, Ncrack, and other brute-forcing tools to crack passwords for the first time can be frustrating and confusing. To ease into the process, let's discuss automating and optimizing brute-force attacks for potentially vulnerable services such as SMTP, SSH, IMAP, and FTP discovered by Nmap, a popular network scanning utility.
Hack Like a Pro: Capturing Zero-Day Exploits in the Wild with a Dionaea Honeypot, Part 2 (Configuration)
Welcome back, my rookie hackers! The Golden Fleece of hackers is to develop a zero-day exploit, an exploit that has not been seen by antivirus (AV) software or and intrusion detection system (IDS). A zero-day exploit is capable of skating right past these defenses as they do not contain a signature or another way of detecting them.
Very often we have processes in Linux that we want to always run in the background at startup. These would be processes that we need to start at bootup and always be available to us.
Welcome back, my hacker novitiates! There are many ways to hack databases, and most of these techniques require SQL injection (SQLi), which is a way of sending SQL commands back to the database from a web form or other input. In this tutorial, we will use SQL injection to get access to the underlying server. So instead of getting access to the database and its data, we will use the database as an intermediary to gain access to the underlying server.
What if someone asks you to do a Nmap scan but you left your pc at home? What if a golden opportunity shows during a pentest but you were walking around the building, taking a break?
Welcome back, my fledgling hackers! The database is the hacker's "pot-of-gold," as it contains information that is very valuable to both the business and the hacker. In this, the second of my series on hacking databases, we're on the "hunt" for Microsoft's SQL Server. Although far from the most commonly used database (Oracle hold's that title), Microsoft's SQL Server is very often found in small-to-medium sized businesses. Even a few big businesses use it.
The ability to stay organized and be resourceful with data gathered from recon is one of the things that separates the true hackers from the script kiddies. Metasploit contains a built-in database that allows for efficient storage of information and the ability to utilize that information to better understand the target, which ultimately leads to more successful exploitation.
One of the ultimate goals in hacking is the ability to obtain shells in order to run system commands and own a target or network. SQL injection is typically only associated with databases and their data, but it can actually be used as a vector to gain a command shell. As a lesson, we'll be exploiting a simple SQL injection flaw to execute commands and ultimately get a reverse shell on the server.
Database technology has vastly improved the way we handle vast amounts of data, and almost every modern application utilizes it in one way or another. But the widespread use of databases naturally invites a slew of vulnerabilities and attacks to occur. SQL injection has been around for awhile, and as such, there are many defense methods in place to safeguard against these types of attacks.
It is often said that the best hackers remain unknown, and the greatest attacks are left undiscovered, but it's hard for an up-and-coming penetration tester or white hat to learn anything unless one of those factors is actually known or discovered. But the end goal here in our SQL injection lessons is to make that statement as true as possible for us when performing our hacks.
The key to becoming a competent white hat is knowing how the technology that you are trying to exploit actually works. SQL injection is one of the most common methods of attack used today and also one of the easiest to learn. In order to understand how this attack works, you need to have a solid grasp of ... you've guessed it ... SQL.
Local port forwarding is good when you want to use SSH to pivot into a non-routable network. But if you want to access services on a network when you can't configure port-forwarding on a router and don't have VPN access to the network, remote port forwarding is the way to go.
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.
Since I first announced the new Null Byte recognition for excellence a few weeks ago, several of you have written me asking, "How can I study for this certification exam, and what material will be covered on the exam?" Now I have an answer for you. The White Hat Hacker Associate (CWA) will cover 14 domains or areas. Everything you need to know is here on Null Byte. There will be no questions that are not covered here on this site, guaranteed.