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How To: Perform Local Privilege Escalation Using a Linux Kernel Exploit

Getting root is considered the Holy Grail in the world of Linux exploitation. Much like SYSTEM on Windows, the root account provides full administrative access to the operating system. Sometimes even a successful exploit will only give a low-level shell; In that case, a technique called privilege escalation can be used to gain access to more powerful accounts and completely own the system.

How To: Exploit Shellshock on a Web Server Using Metasploit

One of the most critical bugs to come out in the last five years was Shellshock, a vulnerability which allows attackers to execute arbitrary code via the Unix Bash shell remotely. This vulnerability has been around for a while now, but due to the ubiquity of Unix machines connected to the web, Shellshock is still a very real threat, especially for unpatched systems.

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 Maltego to Target Company Email Addresses That May Be Vulnerable from Third-Party Breaches

The easiest way around a security policy is to find users who don't follow it. The Have I Been Pwned database identifies accounts with information breached by major third parties like Yahoo and LinkedIn. With Maltego, hackers can locate breached accounts created using company email addresses, potentially giving attackers access to a company account if the employee reuses a compromised password.

How To: Use the Cowrie SSH Honeypot to Catch Attackers on Your Network

The internet is constantly under siege by bots searching for vulnerabilities to attack and exploit. While conventional wisdom is to prevent these attacks, there are ways to deliberately lure hackers into a trap in order to spy on them, study their behavior, and capture samples of malware. In this tutorial, we'll be creating a Cowrie honeypot, an alluring target to attract and trap hackers.

News: Fake 'Cuphead' App Shows iOS Is Also Vulnerable to One of Android's Biggest Gaming Downfalls

Cuphead may have taken the indie gaming scene by storm, but its "introduction" to the iOS App Store is what everyone in the smartphone world is talking about. There is no official Cuphead game available for iPhone, and that's what is so surprising — a fake version was approved and released for iOS devices, and at this scale, incidents like this just don't happen for Apple.

How To: Automatically Launch Two Apps at the Same Time in Android's Multi-Window Mode

Android 7.0 Nougat brought a lot of multitasking improvements along with it, but the most notable addition is a unified multi-window mode (which shines bright in Google's Pixel phones). This means that every Android device can now use the same split-screen interface, and the days of software fragmentation caused by differing multi-window implementations by LG and Samsung are now over.

News: We're Very Close to the Dark Future of Deeply Augmented Reality in Black Mirror's 'Playtest'

Black Mirror, Netflix's technology-horror anthology, never fails to provide thought-provoking entertainment centered around emerging and futuristic technologies, and the third season's second episode, "Playtest," delves deep into the worlds of mixed, augmented, and virtual reality. While designed to leave you haunted by the end, offering a more "evil" narrative than we'll likely see in our actual future, the episode explores possibilities that aren't as far off as one might think.

How To: Use UFONet

With the release of the Mirai source code, botnets are back in a big way. In the early days of botnets, zombies (infected hosts) would report to IRC (Internet Relay Chat) channels for CNC (command and control) instructions. Modern botnets have evolved, but they continue to use the same concepts as their predecessors.

How To: OSX VM Image Install Guide

I was on our new #nullbyte IRC channel when someone told me how tedious it is to install an OSX Virtual Machine on Virtual Box (I think it was wawa). We all know Linux rocks (gets acknowledgement from the crowd), but there are morons out there, multiplying at a never before seen rate, who use OSX. We at nullbyte should be prepared for anything and everything. So, in this guide I take you step by step to creating your OSX Yogemite VM.

How to Meterpreter: Obtaining User Credentials with PowerShell

In this article I will show you how to obtain victim's credentials without cracking any hashes. There are a couple of ways to perform this task (for example dumping the SAM file and cracking the NTLM hashes), but here I will explain how to do it using PowerShell and a bit of social engineering. We are going to create a fake login popup.