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Researchers have disclosed an out-of-bounds read vulnerability in the Squirrel programming language that can be abused by attackers to break out of the sandbox restrictions and execute arbitrary code within a SquirrelVM, thus giving a malicious actor complete access to the underlying machine.  Tracked as CVE-2021-41556 , the issue occurs when a game library referred to as Squirrel Engine is used to execute untrusted code and affects stable release branches 3.x and 2.x of Squirrel. The vulnerability was responsibly disclosed on August 10, 2021. Squirrel is an open-source, object-oriented programming language that's used for scripting video games and as well as in IoT devices and distributed transaction processing platforms such as Enduro/X. "In a real-world scenario, an attacker could embed a malicious Squirrel script into a community map and distribute it via the trusted Steam Workshop," researchers Simon Scannell and Niklas Breitfeld said in a report shared with ...

Cybersecurity researchers on Tuesday took the wraps off a mass volume email attack staged by a prolific cybercriminal gang affecting a wide range of industries, with one of its region-specific operations notably targeting Germany and Austria. Enterprise security firm Proofpoint tied the malware campaign with high confidence to  TA505 , which is the name assigned to the financially motivated threat group that's been active in the cybercrime business since at least 2014, and is behind the infamous Dridex banking trojan and an arsenal of other malicious tools such as FlawedAmmyy, FlawedGrace, Neutrino botnet, and Locky ransomware, among others. Cybersecurity company Morphisec Labs is tracking the same attack chain under the independent moniker " MirrorBlast ." The attacks are said to have started as a series of low-volume email waves, delivering only several thousand messages in each phase, before ramping up in late September and as recently as October 13, resulting in ...

A threat actor, previously known for striking organizations in the energy and telecommunications sectors across the Middle East as early as April 2018, has evolved its malware arsenal to strike two entities in Tunisia. Security researchers at Kaspersky, who presented their findings at the VirusBulletin VB2021 conference earlier this month, attributed the attacks to a group tracked as  Lyceum  (aka Hexane), which was first  publicly documented  in 2019 by Secureworks. "The victims we observed were all high-profile Tunisian organizations, such as telecommunications or aviation companies," researchers Aseel Kayal, Mark Lechtik, and Paul Rascagneres  detailed . "Based on the targeted industries, we assume that the attackers might have been interested in compromising such entities to track the movements and communications of individuals of interest to them." Analysis of the threat actor's toolset has shown that the attacks have shifted from leveraging a combinat...

Patching really, really matters – patching is what keeps technology solutions from becoming like big blocks of Swiss cheese, with endless security vulnerabilities punching hole after hole into critical solutions. But anyone who's spent any amount of time maintaining systems will know that patching is often easier said than done. Yes, in some instances, you can just run a command line to install that patch, and that's it. These instances are increasingly rare though – given the complexity of the technology environment, you're more likely faced with a complex process to achieve patching best practice. In this article, we'll outline why database patching matters (yes, databases are vulnerable too!), explain what the problem is with patching databases, and point to a novel solution that takes the pain out of database patching. Watch out – your database services are vulnerable too We know that database services are critical – databases underpin IT operations in countle...

Representatives from the U.S., the European Union, and 30 other countries pledged to mitigate the risk of ransomware and harden the financial system from exploitation with the goal of disrupting the ecosystem, calling it an "escalating global security threat with serious economic and security consequences."  "From malign operations against local health providers that endanger patient care, to those directed at businesses that limit their ability to provide fuel, groceries, or other goods to the public, ransomware poses a significant risk to critical infrastructure, essential services, public safety, consumer protection and privacy, and economic prosperity," officials  said  in a statement released last week. To that end, efforts are expected to be made to enhance network resilience by adopting cyber hygiene good practices, such as using strong passwords, securing accounts with multi-factor authentication, maintaining periodic offline data backups, keeping softwa...

REvil, the notorious ransomware gang behind a string of cyberattacks in recent years, appears to have gone off the radar once again, a little over a month after the cybercrime group staged a surprise return following a two-month-long hiatus. The development, first  spotted  by Recorded Future's  Dmitry Smilyanets , comes after a member affiliated with the REvil operation posted on the XSS hacking forum that unidentified actors had taken control of the gang's Tor payment portal and data leak website. "The server was compromised and they were looking for me. To be precise, they deleted the path to my hidden service in the  torrc file  and raised their own so that I would (sic) go there. I checked on others - this was not. Good luck everyone, I'm off," user 0_neday said in the post. As of writing, it isn't clear exactly who was behind the compromise of REvil's servers, although it wouldn't be entirely surprising if law enforcement agencies played a r...

Since cybersecurity is definitely an issue that's here to stay, I've just checked out the recently released first episodes of Cato Networks  Cybersecurity Master Class Series .  According to Cato, the series aims to teach and demonstrate cybersecurity tools and best practices; provide research and real-world case studies on cybersecurity; and bring the voices and opinions of top cybersecurity thought-leaders. Designed for security and IT professionals, C-level managers and security experts, each session contains both theory and hands-on examples about strategic, tactical, and operational issues on a wide range of topics.  The classes are hosted by industry-recognized cybersecurity researcher and keynote speaker, Etay Maor, who is also Senior Director of Security Strategy at Cato. Four out of the planned annual 8-10 episodes are currently available online.  Episode 1 , entitled  How (and Why) to Apply OSINT to Protect your Enterprise  takes an in-depth ...