Hackaday Links: July 21, 2024

July 21, 2024 by Dan Maloney 20 Comments

When monitors around the world display a “Blue Screen of Death” and you know it’s probably your fault, it’s got to be a terrible, horrible, no good, very bad day at work. That’s likely the situation inside CrowdStrike this weekend, as engineers at the cybersecurity provider struggle to recover from an update rollout that went very, very badly indeed. The rollout, which affected enterprise-level Windows 10 and 11 hosts running their flagship Falcon Sensor product, resulted in machines going into a boot loop or just dropping into restore mode, leaving hapless millions to stare at the dreaded BSOD screen on everything from POS terminals to transit ticketing systems.

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The Invisible Battlefields Of The Russia-Ukraine War

March 7, 2022 by Adam Zeloof 27 Comments

Early in the morning of February 24th, Dr. Jeffrey Lewis, a professor at California’s Middlebury Institute of International Studies watched Russia’s invasion of Ukraine unfold in realtime with troop movements overlaid atop high-resolution satellite imagery. This wasn’t privileged information — anybody with an internet connection could access it, if they knew where to look. He was watching a traffic jam on Google Maps slowly inch towards and across the Russia-Ukraine border.

As he watched the invasion begin along with the rest of the world, another, less-visible facet of the emerging war was beginning to unfold on an ill-defined online battlefield. Digital espionage, social media and online surveillance have become indispensable instruments in the tool chest of a modern army, and both sides of the conflict have been putting these tools to use. Combined with civilian access to information unlike the world has ever seen before, this promises to be a war like no other.

Modern Cyberwarfare

The first casualties in the online component of the war have been websites. Two weeks ago, before the invasion began en masse, Russian cyberwarfare agents launched distributed denial of service (DDoS) attacks against Ukrainian government and financial websites. Subsequent attacks have temporarily downed the websites of Ukraine’s Security Service, Ministry of Foreign Affairs, and government. A DDoS attack is a relatively straightforward way to quickly take a server offline. A network of internet-connected devices, either owned by the aggressor or infected with malware, floods a target with request, as if millions of users hit “refresh” on the same website at the same time, repeatedly. The goal is to overwhelm the server such that it isn’t able to keep up and stops replying to legitimate requests, like a user trying to access a website. Russia denied involvement with the attacks, but US and UK intelligence services have evidence they believe implicates Moscow. Continue reading “The Invisible Battlefields Of The Russia-Ukraine War” →

Teardown: Recon Sentinel

November 16, 2020 by Tom Nardi 35 Comments

It might be hard to imagine now, but there was a time when the average home had only a single Internet connected device in it. This beige box, known as a “desktop computer” in those olden days, was a hub of information and productivity for the whole family. There was a good chance you might even need to wait for your turn to use it, since it’s not like you had a personal device in your pocket that let you log on from ~~the bathroom~~ whatever room you might be in at the time. Which is just as well, since even if you had broadband back then, you certainly weren’t shooting it around the house with the Magic Internet Beams that we take for granted now.

Things are a lot more complicated today. Your computer(s) are only part of the equation. Now there’s mobile phones and tablets sharing your Internet connection, in addition to whatever smart gadgets you’ve brought into the mix. When your doorbell and half the light bulbs in the house have their own IP address, it takes more than a fresh copy of Norton AntiVirus to keep everything secure.

Which is precisely what Cigent Technology says the Recon Sentinel was designed for. Rather than protecting a single computer or device, this little gadget is advertised as being able to secure your entire network by sniffing out suspicious activity and providing instant notifications when new hardware is connected. According to the official whitepaper, it also runs a honeypot service Cigent calls a “cyber deception engine” and is capable of deploying “Active Defense Countermeasures” to confuse malicious devices that attempt to attack it.

It certainly sounds impressive. But for $149.99 plus an annual subscription fee, it better. If you’re hoping this teardown will tell you if it’s worth springing for the $899.99 Lifetime Subscription package, don’t get too excited. This isn’t a review, we’re only interested in cracking this thing open and seeing what makes it tick.

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Do Your Part To Stop The Robot Uprising

October 21, 2020 by Al Williams 11 Comments

One of the pleasures of consuming old science fiction movies and novels is that they capture the mood of the time in which they are written. Captain Kirk was a 1960s guy and Picard was a 1990s guy, after all. Cold war science fiction often dealt with invasion. In the 1960s and 70s, you were afraid of losing your job to a computer, so science fiction often had morality tales of robots running amok, reminding us what a bad idea it was to give robots too much power. As it turns out, robots might be dangerous, but not for the reasons we thought. The robots won’t turn on us by themselves. But they could be hacked. To that end, there’s a growing interest in robot cybersecurity and Alias Robotics is releasing Alurity, a toolbox for robot cybersecurity.

Currently, the toolbox is available for Linux and MacOS with some support for Windows. It targets 25 base robots including the usual suspects. There’s a white paper from when the product entered testing available if you want more technical details.

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Lowering The Bar For Exam Software Security

October 14, 2020 by Adam Zeloof 24 Comments

Most standardized tests have a fee: the SAT costs $50, the GRE costs $200, and the NY Bar Exam costs $250. This year, the bar exam came at a much larger cost for recent law school graduates — their privacy.

Many in-person events have had to find ways to move to the internet this year, and exams are no exception. We’d like to think that online exams shouldn’t be a big deal. It’s 2020. We have a pretty good grasp on how security and privacy should work, and it shouldn’t be too hard to implement sensible anti-cheating features.

It shouldn’t be a big deal, but for one software firm, it really is.

The NY State Board of Law Examiners (NY BOLE), along with several other state exam boards, chose to administer this year’s bar exam via ExamSoft’s Examplify. If you’ve missed out on the Examplify Saga, following the Diploma Privilege for New York account on Twitter will get you caught up pretty quickly. Essentially, according to its users, Examplify is an unmitigated disaster. Let’s start with something that should have been settled twenty years ago.

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Copy And Paste Deemed Insecure

June 18, 2020 by Al Williams 23 Comments

Back when Windows NT was king, Microsoft was able to claim that it met the strict “Orange Book” C2 security certification. The catch? Don’t install networking and remove the floppy drives. Turns out most of the things you want to do with your computer are the very things that are a security risk. Even copy and paste.

[Michal Benkowki] has a good summary of his research which boils down to the following attack scenario:

Visit a malicious site.
Copy something to the clipboard which allows the site to put in a dangerous payload.
Visit another site with a browser-based visual editor (e.g., Gmail or WordPress)
Paste the clipboard into the editor.

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Mitigating Con Deprivation: Disobey 2020

May 17, 2020 by Sven Gregori 6 Comments

While the Coronavirus-induced lockdown surely makes life easier for the socially anxious and awkward ones among us, it also takes away the one thing that provides a feeling of belonging and home: conferences. Luckily, there are plenty of videos of past events available online, helping to bypass the time until we can mingle among like-minded folks again. To put one additional option on the list, one event you probably never even heard of is Disobey, Finland’s annual security conference that took place for its fifth time in Helsinki earlier this year, and they recently published the playlist of this year’s talks on their YouTube channel.

With slightly under 1500 hackers, makers, and generally curious people attending this year, Disobey is still on the smaller side of conferences, but comes with everything you’d expect: talks, workshops, CTF challenges, and a puzzle-ridden badge. Labeling itself as “The Nordic Security Event”, its main focus is indeed on computer and network security, and most of the talks are presented by professional security researchers, oftentimes Red Teamers, telling about some of their real-world work.

In general, every talk that teaches something new, discusses important matters, or simply provides food for thought and new insight is worth watching, but we also don’t want to give everything away here either. The conference’s program page offers some outline of all the talks if you want to check some more information up front. But still, we can’t just mention a random conference and not give at least some examples with few details on what to expect from it either, so let’s do that.

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