Catégorie : Sécurité

Posted by Dan Lorenc, Priya Wadhwa, Open Source Security TeamIf you've been paying attention to the news at all lately, you've probably noticed that software supply chain attacks are rapidly becoming a big problem. Whether you're trying to prevent these attacks, responding to an ongoing one or recovering from one, you understand that knowing what is happening in your CI/CD pipeline is critical. Fortunately, the Kubernetes-native Tekton project – an open-source framework for creating CI/CD systems – was designed with security in mind from Day One, and the new Tekton Chains project is here to help take it to the next level. Tekton Chains securely captures metadata for CI/CD pipeline executions. We made two really important design decisions early on in Tekton that make supply chain security easy: declarative pipeline…

The U.S. Department of Justice said today it has recovered $2.3 million worth of Bitcoin that Colonial Pipeline paid to ransomware extortionists last month. The funds had been sent to DarkSide, a ransomware-as-a-service syndicate that disbanded after a May 14 farewell message to affiliates saying its Internet servers and cryptocurrency stash were seized by unknown law enforcement entities. On May 7, the DarkSide ransomware gang sprang its attack against Colonial, which ultimately paid 75 Bitcoin (~$4.4 million) to its tormentors. The company said the attackers only hit its business IT networks — not its pipeline security and safety systems — but that it shut the pipeline down anyway as a precaution [several publications noted Colonial shut down its pipeline because its billing system was impacted, and it had no way…

KrebsOnSecurity recently had occasion to contact the Russian Federal Security Service (FSB), the Russian equivalent of the U.S. Federal Bureau of Investigation (FBI). In the process of doing so, I encountered a small snag: The FSB’s website said in order to communicate with them securely, I needed to download and install an encryption and virtual private networking (VPN) appliance that is flagged by at least 20 antivirus products as malware. The FSB headquarters at Lubyanka Square, Moscow. Image: Wikipedia. The reason I contacted the FSB — one of the successor agencies to the Russian KGB — ironically enough had to do with security concerns raised by an infamous Russian hacker about the FSB’s own preferred method of being contacted. KrebsOnSecurity was seeking comment from the FSB about a blog post…

Posted by Anna Hupa,  Marc Henson, and Martin Straka, Google VRP Team Our Abuse Bug Bounty program has proved tremendously successful in the past three years since its introduction – thanks to our incredibly engaged community of researchers. Their contributions resulted in +1,000 valid bugs, helping us raise the bar in combating product abuse.As a result of this continued success, today we are announcing a new experimental Abuse Research Grants Program in addition to the already existing Vulnerability Research Grants. Similar to other Research Grant Programs, these grants are up-front awards that our top researchers will receive before they ever submit a bug.Last year, we increased our rewards to recognize the important work of our community. The growth of this program would not have been possible without partners like David (@xdavidhu),…

Posted by Badr Salmi, Google Safe Browsing & Varun Khaneja, Chrome Security In 2020 we launched Enhanced Safe Browsing, which you can turn on in your Chrome security settings, with the goal of substantially increasing safety on the web. These improvements are being built on top of existing security mechanisms that already protect billions of devices. Since the initial launch, we have continuously worked behind the scenes to improve our real-time URL checks and apply machine learning models to warn on previously-unknown attacks. As a result, Enhanced Safe Browsing users are successfully phished 35% less than other users. Starting with Chrome 91, we will roll out new features to help Enhanced Safe Browsing users better choose their extensions, as well as offer additional protections against downloading malicious files on the…

Fake, positive reviews have infiltrated nearly every corner of life online these days, confusing consumers while offering an unwelcome advantage to fraudsters and sub-par products everywhere. Happily, identifying and tracking these fake reviewer accounts is often the easiest way to spot scams. Here’s the story of how bogus reviews on a counterfeit Microsoft Authenticator browser extension exposed dozens of other extensions that siphoned personal and financial data. Comments on the fake Microsoft Authenticator browser extension show the reviews for these applications are either positive or very negative — basically calling it out as a scam. Image: chrome-stats.com. After hearing from a reader about a phony Microsoft Authenticator extension that appeared on the Google Chrome Store, KrebsOnSecurity began looking at the profile of the account that created it. There were a…

Florian “The Shark” Tudor, the alleged ringleader of a prolific ATM skimming gang that siphoned hundreds of millions of dollars from bank accounts of tourists visiting Mexico over the last eight years, was arrested in Mexico City on Thursday in response to an extradition warrant from a Romanian court. Florian Tudor, at a 2020 press conference in Mexico in which he asserted he was a legitimate businessman and not a mafia boss. Image: OCCRP. Tudor, a native of Craiova, Romania, moved to Mexico to set up Top Life Servicios, an ATM servicing company which managed a fleet of relatively new ATMs based in Mexico branded as Intacash. Intacash was the central focus of a three–part investigation KrebsOnSecurity published in September 2015. That series tracked the activities of a crime gang working with…

Posted by Jon Markoff and Sean Smith, Android Security and Privacy Team Integrating security into your app development lifecycle can save a lot of time, money, and risk. That’s why we’ve launched Security by Design on Google Play Academy to help developers identify, mitigate, and proactively protect against security threats. The Android ecosystem, including Google Play, has many built-in security features that help protect developers and users. The course Introduction to app security best practices takes these protections one step further by helping you take advantage of additional security features to build into your app. For example, Jetpack Security helps developers properly encrypt their data at rest and provides only safe and well known algorithms for encrypting Files and SharedPreferences. The SafetyNet Attestation API is a solution to help identify…

Research Team: Salman Qazi, Yoongu Kim, Nicolas Boichat, Eric Shiu & Mattias Nissler Today, we are sharing details around our discovery of Half-Double, a new Rowhammer technique that capitalizes on the worsening physics of some of the newer DRAM chips to alter the contents of memory.Rowhammer is a DRAM vulnerability whereby repeated accesses to one address can tamper with the data stored at other addresses. Much like speculative execution vulnerabilities in CPUs, Rowhammer is a breach of the security guarantees made by the underlying hardware. As an electrical coupling phenomenon within the silicon itself, Rowhammer allows the potential bypass of hardware and software memory protection policies. This can allow untrusted code to break out of its sandbox and take full control of the system.Rowhammer was first discussed in a paper in…

One of the oldest scams around — the fake job interview that seeks only to harvest your personal and financial data — is on the rise, the FBI warns. Here’s the story of a recent LinkedIn impersonation scam that led to more than 100 people getting duped, and one almost-victim who decided the job offer was too-good-to-be-true. Last week, someone began began posting classified notices on LinkedIn for different design consulting jobs at Geosyntec Consultants, an environmental engineering firm based in the Washington, D.C. area. Those who responded were told their application for employment was being reviewed and that they should email Troy Gwin — Geosyntec’s senior recruiter — immediately to arrange a screening interview. Gwin contacted KrebsOnSecurity after hearing from job seekers trying to verify the ad, which urged…