It seems like a new, dangerous Android exploit is uncovered every month or two. The latest headliners are NightMonkey and Chronos from the list of CIA hacks reported by Wikileaks, which have been billed as gaping security holes in the world's biggest mobile operating system.
On this video I will demonstrate a simple concept of stack base overflows. This is the first part of my exploit development tutorials and after that I will demonstrate seh buffer overflow, ROP/DEP/ASLR, spraying the heap, search for bugs/think different etc.
Welcome back, my amateur hackers! Over the course of the next year, we will be developing our own zero-day exploits. In my first article in this series, I introduced you to buffer overflows, which are the source of some of the most lethal exploits, particularly the "remote code execution," so we are focusing our exploit development here on a buffer overflow.
WordPress did not become what is arguably the most popular blogging and CMS platform on the planet because it was difficult to use. Rather, its user-friendly and rich feature set led to it finding a home on somewhere north of 70 million websites—and that's just counting blogs hosted on WordPress.com.
A simple security flaw can allow an attacker to gain a strong foothold with little effort on their part. When a web application permits remotely hosted files to be loaded without any validation, a whole can of worms is opened up, with consequences ranging from simple website defacement to full-on code execution. For this reason, RFI can be a promising path to obtaining a shell.
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.
Relentless in its fury, the iOS text messaging exploit that exploded onto the scene late last week seems to do more damage than initially reported.
I'm sure that many of us have heard of that nasty Shellshock vulnerability, but not very many people know how to exploit it. Try these few tricks on vulnerable websites!
Now that we have control over a victim's browser, we need to use some attacks to maintain the connection, or even better: upload a shell.
It's becoming more and more apparent that Siri continually drops the ball when it comes to lock screen security. In the past, Siri was exploited in iOS 7.0.2 to send messages without needing a passcode. Then in iOS 7.1.1, Siri was use to bypass the lock screen again to access contacts, make calls, and send emails and texts.
The ability to execute system commands via a vulnerable web application makes command injection a fruitful attack vector for any hacker. But while this type of vulnerability is highly prized, it can often take quite a bit of time to probe through an entire application to find these flaws. Luckily, there is a useful tool called Commix that can automate this process for us.
File inclusion can allow an attacker to view files on a remote host they shouldn't be able to see, and it can even allow the attacker to run code on a target.
Hello null_byters, after some time out here we are again with another tutorial, continuing our beautiful series, today we will write our first real world bash script.
Hello Null-Byte community. First off: this my first post here on Null-Byte. Some of you may have already seen me in the comment section, to all others: Hi, I'm the new guy.
Welcome back, my greenhorn hackers! The Holy Grail of any hacker is to develop a zero-day exploit—an exploit that has never been seen by antivirus (AV) and other software developers, as well as intrusion detection system (IDS) developers. In that way, you can exploit systems with your newly discovered vulnerability with impunity!
Welcome back, my rookie hackers! Several of you have written me asking about where they can find the latest hacks, exploits, and vulnerabilities. In response, I offer you this first in a series of tutorials on finding hacks, exploits, and vulnerabilities. First up: Microsoft Security Bulletins.
A recent security risk exposed by software engineer Szymon Sidor has raised a few eyebrows amongst the Android community.
If you've haven't had your fill of Apple's security issues in recent weeks, Siri is now the latest to join the slew of problems with the most recent version of iOS (7.1.1).
Ever since its introduction back in iOS 6, AirPlay has been helping us iOS and Mac users stream content over to an Apple TV or third-party speaker system. It's an incredibly useful feature. However, it's also severely limiting. The few compatible products out there are extremely expensive, making wireless streaming a not-so-easy task.
Every time Apple releases a new product or software update, people quickly figure out exploits in order to bypass the lock screen without having to type in the passcode. It happened last year in iOS 6, so it's not surprising that it happened again in iOS 7.
If you use Ubisoft's uPlay browser extension, you should probably get rid of it right now. An Information Security Engineer at Google discovered that the plugin has a hole in it that allows programs to be installed through uPlay, essentially letting anyone who feels so inclined to take over your computer. How the Exploit Works
The internet has undoubtedly changed the way we work and communicate. With technological advances, more and more people can collaborate on the web from anywhere in the world. But this remote-friendly environment inherently brings security risks, and hackers are always finding ways to exploit systems for other uses.
Yesterday, the Free Software Foundation published an article written by Paul Kocialkowski. A software developer for the the Android fork system Replicant, Paul stated that his organization discovered, and later patched, a "backdoor" vulnerability that existed in older Samsung Galaxy devices, including our beloved Galaxy S3s. Only problem is, it's kind of bullshit—but we'll get to that later.
Welcome back my fellow hackers! In my last few articles, I've concentrated on what is called a listener, which is basically the same thing as backdoor and rootkit, only "listener" sounds much less malevolent than the other two terms.
Post-exploitation is often not quite as exciting as popping the initial shell, but it's a crucial phase for gathering data and further privilege escalation. Once a target is compromised, there's a lot of information to find and sift through. Luckily, there are tools available that can make the process easy. One such tool is Postenum.
In our previous article, we learned how to take advantage of a feature, Dynamic Data Exchange (DDE), to run malicious code when an MS Word document is opened. Because Microsoft built DDE into all of its Office products as a way to transfer data one time or continuously between applications, we can do the same thing in Excel to create a spreadsheet that runs malicious code when opened. The best part is, it will do so without requiring macros to be enabled.
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.
Heartbleed, move over. There's a new bug in town, and this time it's also affecting Mac and Linux computers. It's called Shellshock (its original official title is CVE-2014-6271), and it's currently got a 10 out of 10 severity rating over at the National Cyber Awareness System. While some updates have been issued to fix this bug, they were incomplete, and your system is probably still vulnerable, as it has been for the last probably 20 years.
Earlier this week, Spiderlabs' vulnerability researcher Jonathan Claudius discovered a key in Windows 7 and 8 registries that makes it easy for anyone with physical or remote access to a computer get a hold of the user's password hints. When the "UserPasswordHint" key is read, the hints are displayed as a code that looks encrypted, but Claudius noticed a pattern of zeroes that could be easily translated back to plain text with a decoder he made in Ruby. He added this functionality to the Meta...
With the recent news that New York County's District Attorney's office is trying to get into over 400 locked iPhones for use in criminal investigations, you can see why it's important to keep other people away from your personal data. The fact that it can and will be used against you in a court of law is just one reason to protect your phone, because even if you make sure to stay above the fray, identity theft and bank fraud are still very real threats.
Welcome back, my neophyte hackers! Metasploit is such a powerful tool that I can only scratch the surface of its capabilities here. As it has developed over the years, it is now possible to use Metasploit for nearly everything from recon to post exploitation to covering your tracks. Given its versatility, every aspiring hacker should have at least a tentative grasp of Metasploit.
Welcome back, my rookie hackers! The more we know about a system or network, the better our chances of owning it and not leaving a trace for investigators to follow. One of the often overlooked sources for information is the Simple Network Management Protocol (SNMP). Many rookie hackers are not even aware of it, but it can prove to be a treasure trove of information, if you understand how it works and how to hack it.
Many online users worry about their accounts being breached by some master hacker, but the more likely scenario is falling victim to a bot written to use leaked passwords in data breaches from companies like LinkedIn, MySpace, and Tumblr. For instance, a tool called H8mail can search through over 1 billion leaked credentials to discover passwords that might still be in use today.
In my last guide, I showed how you could crack the combination of any Master Lock combination padlock in 8 tries or less using my online calculator. Now, as promised, I'll be showing you how I devised the attack, which is based off the well-known technique that reduces the 64,000 possible combinations of a Master Lock down to just 100. Here, I will be drilling open a Master combo lock to show you how the insides work.
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.
Koadic allows hackers to monitor and control exploited Windows systems remotely. The tool facilitates remote access to Windows devices via the Windows Script Host, working with practically every version of Windows. Koadic is capable of sitting entirely in memory to evade detection and is able to cryptographically secure its own web command-and-control communications.
PowerShell Empire is a post-exploitation framework for computers and servers running Microsoft Windows, Windows Server operating systems, or both. In these tutorials, we will be exploring everything from how to install Powershell Empire to how to snoop around a target's computer without the antivirus software knowing about it. If we are lucky, we might even be able to obtain domain administrator credentials and own the whole network.
GTFOBins and LOLBAS are projects with the goal of documenting native binaries that can be abused and exploited by attackers on Unix and Windows systems, respectfully. These binaries are often used for "living off the land" techniques during post-exploitation. In this tutorial, we will be exploring gtfo, a tool used to search these projects for abusable binaries right from the command line.
What's the best way to cheat death in Dark Souls? By cheating of course. IGN reveals an exploit on the PS3 that allows you to stop the game during a save and resume it with humanities and souls intact. Be sure to use this exploit at your own risk.
In this installment from the Unorthodox Hacking series of computer security videos, you will explore a few of the areas in Windows that most Sysadmins don’t even know exist. See how to become Local System through the Task Scheduler and abuse long filenames. Take a look at some of the features within Windows—registry—that many system administrators don't know exist with this hacking how-to.
