The Hacker News | #1 Trusted Source for Cybersecurity News — Index Page

A new ransomware family that emerged last month comes with its own bag of tricks to bypass ransomware protection by leveraging a novel technique called "intermittent encryption." Called  LockFile , the operators of the ransomware have been found exploiting recently disclosed flaws such as  ProxyShell  and  PetitPotam  to compromise Windows servers and deploy file-encrypting malware that scrambles only every alternate 16 bytes of a file, thereby giving it the ability to evade ransomware defences. "Partial encryption is generally used by ransomware operators to speed up the encryption process and we've seen it implemented by BlackMatter, DarkSide and LockBit 2.0 ransomware," Mark Loman, Sophos director of engineering, said in a statement. "What sets LockFile apart is that, unlike the others, it doesn't encrypt the first few blocks. Instead, LockFile encrypts every other 16 bytes of a document." "This means that a file such as a text documen...

Microsoft is warning of a widespread credential phishing campaign that leverages  open redirector links  in email communications as a vector to trick users into visiting malicious websites while effectively bypassing security software. "Attackers combine these links with social engineering baits that impersonate well-known productivity tools and services to lure users into clicking," Microsoft 365 Defender Threat Intelligence Team  said  in a report published this week. "Doing so leads to a series of redirections — including a CAPTCHA verification page that adds a sense of legitimacy and attempts to evade some automated analysis systems — before taking the user to a fake sign-in page. This ultimately leads to credential compromise, which opens the user and their organization to other attacks." Although redirect links in email messages serve a vital tool to take recipients to third-party websites or track click rates and measure the success of sales and marketin...

Google and Microsoft said they are pledging to invest a total of $30 billion in cybersecurity advancements over the next five years, as the U.S. government  partners  with private sector companies to address threats facing the country in the wake of a string of sophisticated malicious cyber activity targeting critical infrastructure, laying bare the risks to data, organizations, and governments worldwide. The White House cybersecurity meeting, which brought together executives from the education, energy, finance, insurance, and tech sectors, included companies like ADP, Amazon, Apple, Bank of America, Code.org, Girls Who Code, Google, IBM, JPMorgan Chase, Microsoft, and Vantage Group, among others. To that end, the U.S. government on Wednesday announced a collaboration between the National Institute of Standards and Technology (NIST) and industry partners to develop a new framework to improve the security and integrity of the technology supply chain, alongside plans to exp...

U.S. technology firm Kaseya has  released  security patches to address two zero-day vulnerabilities affecting its Unitrends enterprise backup and continuity solution that could result in privilege escalation and authenticated remote code execution. The two weaknesses are part of a  trio of vulnerabilities  discovered and reported by researchers at the Dutch Institute for Vulnerability Disclosure (DIVD) on July 3, 2021. The IT infrastructure management solution provider has addressed the issues in server software version 10.5.5-2 released on August 12, DIVD said. An as-yet-undisclosed client-side vulnerability in Kaseya Unitrends remains unpatched, but the company has published  firewall rules  that can be applied to filter traffic to and from the client and mitigate any risk associated with the flaw. As an additional precaution, it's  recommended  not to leave the servers accessible over the internet. Although specifics related to the vulnera...

Cloud infrastructure security company Wiz on Thursday revealed details of a now-fixed Azure Cosmos database vulnerability that could have been potentially exploited to grant any Azure user full admin access to other customers' database instances without any authorization. The flaw, which grants read, write, and delete privileges, has been dubbed " ChaosDB ," with Wiz researchers noting that "the vulnerability has a trivial exploit that doesn't require any previous access to the target environment, and impacts thousands of organizations, including numerous Fortune 500 companies." Cosmos DB is Microsoft's proprietary  NoSQL database  that's advertised as "a fully managed service" that "takes database administration off your hands with automatic management, updates and patching." The Wiz Research Team reported the issue to Microsoft on August 12, after which the Windows maker took steps to mitigate the issue within 48 hours of r...

Today I discuss an attack vector conducive to cross-organizational spread, in-home local propagation. Though often overlooked, this vector is especially relevant today, as many corporate employees remain working from home. In this post, I contrast in-home local propagation with traditional vectors through which a threat (ransomware in particular) spreads throughout an organization. I discuss the reasons this type of spread is problematic for employees and corporations alike. Finally, I offer simple solutions to mitigate the risk of such tactics.  Why Should IT and Security Stakeholders Care? Today's long cycle attacks are often reconnoitering the victim environment for weeks, if not months. In this time, the attacker gains a tremendous amount of knowledge about systems in the victim's footprint. This additional loiter time in the victim's environment, coupled with ad-hoc maintained work-from-home environments, presents both an  ingress avenue  for attacks into their n...

Enterprise security and network appliance vendor F5 has released patches for more than  two dozen security vulnerabilities  affecting multiple versions of BIG-IP and BIG-IQ devices that could potentially allow an attacker to perform a wide range of malicious actions, including accessing arbitrary files, escalating privileges, and executing JavaScript code. Of the 29 bugs addressed, 13 are high-severity flaws, 15 are rated medium, and one is rated low in severity. Chief among them is  CVE-2021-23031  (CVSS score: 8.8), a vulnerability affecting BIG-IP Advanced Web Application Firewall and BIG-IP Application Security Manager that allows an authenticated user to perform a privilege escalation. "When this vulnerability is exploited, an authenticated attacker with access to the Configuration utility can execute arbitrary system commands, create or delete files, and/or disable services. This vulnerability may result in complete system compromise," F5 said in its advis...

Forget watercooler conspiracies or boardroom battles. There's a new war in the office. As companies nudge their staff to return to communal workspaces, many workers don't actually want to – more than 50 percent of employees would rather quit, according to  research by EY .  While HR teams worry over the hearts and minds of staff, IT security professionals have a different battle plan to draft – how to make the new normal of the hybrid workplace secure. The Trade-off Between Usability and Security A company's biggest vulnerability continues to be its people. In a hybrid workplace, a Zero Trust strategy means ever-tightening security.  The MFA a company chooses  affects the difficulty of logging into email, dashboards, workflow tools, client documentation, and so on. Or, conversely, how porous access security is.  Now imagine this scenario. An employee opens a company portal, confirms a prompt on a company app on her phone, and that's it. She has been authent...

VMware on Wednesday shipped  security updates  to address vulnerabilities in multiple products that could be potentially exploited by an attacker to take control of an affected system. The six security weaknesses (from CVE-2021-22022 through CVE-2021-22027, CVSS scores: 4.4 - 8.6) affect VMware vRealize Operations (prior to version 8.5.0), VMware Cloud Foundation (versions 3.x and 4.x), and vRealize Suite Lifecycle Manager (version 8.x), as listed below - CVE-2021-22022  (CVSS score: 4.4) - Arbitrary file read vulnerability in vRealize Operations Manager API, leading to information disclosure CVE-2021-22023  (CVSS score: 6.6) - Insecure direct object reference vulnerability in vRealize Operations Manager API, enabling an attacker with administrative access to alter other users' information and seize control of an account CVE-2021-22024  (CVSS score: 7.5) - Arbitrary log-file read vulnerability in vRealize Operations Manager API, resulting in sensitive info...

Cisco Systems on Wednesday issued patches to address a critical security vulnerability affecting the Application Policy Infrastructure Controller (APIC) interface used in its Nexus 9000 Series Switches that could be potentially abused to read or write arbitrary files on a vulnerable system. Tracked as  CVE-2021-1577  (CVSS score: 9.1), the issue — which is due to improper access control — could enable an unauthenticated, remote attacker to upload a file to the appliances. " A successful exploit could allow the attacker to read or write arbitrary files on an affected device," the company  said  in an advisory. The APIC appliance is a centralized, clustered controller that programmatically automates network provisioning and control based on the application requirements and policies across physical and virtual environments. Cisco said it discovered the vulnerability during internal security testing by the Cisco Advanced Security Initiatives Group (ASIG). Addition...

I'm sure you would agree that, in today's digital world, the majority of applications we work on require some type of credentials – to connect to a database with a username/password, to access computer programs via authorized tokens, or API keys to invoke services for authentication. Credentials, or sometimes just referred to as 'Secrets,' are pieces of user or system-level confidential information that ought to be carefully protected and accessible to legitimate users only. We all know how important it is to keep these assets secure to prevent account misuse and breaches.  A reality check: How often do you make proactive efforts to protect these assets? Rarely, I'd say.  Among the worst mistakes a developer can make when it comes to application security is to accidentally commit confidential information publicly on the Internet. Surprisingly, secrets and credentials are accidentally leaked more often than you might expect, and there are intelligent tools that s...

A financially motivated threat actor notorious for setting its sights on retail, hospitality, and entertainment industries has been observed deploying a completely new backdoor on infected systems, indicating the operators are continuously retooling their malware arsenal to avoid detection and stay under the radar. The previously undocumented malware has been dubbed " Sardonic " by Romanian cybersecurity technology company Bitdefender, which it encountered during a  forensic investigation  in the wake of an unsuccessful attack carried out by FIN8 aimed at an unnamed financial institution located in the U.S. Said to be under active development, "Sardonic backdoor is extremely potent and has a wide range of capabilities that help the threat actor leverage new malware on the fly without updating components," Bitdefender researchers Eduard Budaca and Victor Vrabie said in a report shared with The Hacker News. Since emerging on the scene in January 2016, FIN8 has ...

Cybersecurity researchers have disclosed five previously unreported security vulnerabilities affecting B. Braun's Infusomat Space Large Volume Pump and SpaceStation that could be abused by malicious parties to tamper with medication doses without any prior authentication. McAfee, which discovered and reported the flaws to the German medical and pharmaceutical device company on January 11, 2021,  said  the "modification could appear as a device malfunction and be noticed only after a substantial amount of drug has been dispensed to a patient, since the infusion pump displays exactly what was prescribed, all while dispensing potentially lethal doses of medication." The issues have been addressed by B. Braun in SpaceCom L82 or later, Battery Pack SP with WiFi:L82 or later, and DataModule compactplus version A12 or later. Infusion pumps are medical devices used to deliver intravenous fluids, such as nutrients and medications, into a patient's body in controlled amoun...

A computer retail company based in the U.S. was the target of a previously undiscovered implant called SideWalk as part of a recent campaign undertaken by a Chinese advanced persistent threat group primarily known for singling out entities in East and Southeast Asia. Slovak cybersecurity firm ESET attributed the malware to an advanced persistent threat it tracks under the moniker SparklingGoblin, an adversary believed to be connected to the Winnti umbrella group, noting its similarities to another backdoor dubbed  Crosswalk  that was put to use by the same threat actor in 2019. "SideWalk is a modular backdoor that can dynamically load additional modules sent from its C&C [command-and-control] server, makes use of Google Docs as a  dead drop resolver , and  Cloudflare workers  as a C&C server," ESET researchers Thibaut Passilly and Mathieu Tartare  said  in a report published Tuesday. "It can also properly handle communication behind a prox...

A modified version of the WhatsApp messaging app for Android has been trojanized to intercept text messages, serve malicious payloads, display full-screen ads, and sign up device owners for unwanted premium subscriptions without their knowledge. "The Trojan Triada snuck into one of these modified versions of the messenger called FMWhatsApp 16.80.0 together with the advertising software development kit (SDK)," researchers from Russian cybersecurity firm Kaspersky  said  in a technical write-up published Tuesday. "This is similar to  what happened with APKPure , where the only malicious code that was embedded in the app was a payload downloader." Modified versions of legitimate Android apps — a practice called Modding — are designed to perform functions not originally conceived or intended by the app developers. FMWhatsApp, billed as a custom build of WhatsApp, allows users to refashion the app with different themes, personalize icons, and hide features like last ...

A previously undisclosed "zero-click" exploit in Apple's iMessage was abused by Israeli surveillance vendor NSO Group to circumvent iOS security protections and target nine Bahraini activists. "The hacked activists included three members of Waad (a secular Bahraini political society), three members of the Bahrain Center for Human Rights, two exiled Bahraini dissidents, and one member of Al Wefaq (a Shiite Bahraini political society)," researchers from University of Toronto's Citizen Lab  said  in a report published today, with four of the targets hacked by an actor it tracks as LULU and believed to be the government of Bahrain. Citizen Lab called the new exploit chain "FORCEDENTRY." It's also a zero-click exploit, meaning that it can be used to trigger an infection simply by sending a malicious message to the target, even without having to click a link or view the message in question. "As always, if NSO receives reliable information r...

Cybersecurity researchers on Tuesday took the wraps off four up-and-coming ransomware groups that could pose a serious threat to enterprises and critical infrastructure, as the ripple effect of a recent spurt in ransomware incidents show that attackers are growing more sophisticated and more profitable in extracting payouts from victims. "While the ransomware crisis appears poised to get worse before it gets better, the cast of cybercrime groups that cause the most damage is constantly changing," Palo Alto Networks' Unit 42 threat intelligence team  said  in a report shared with The Hacker News. "Groups sometimes go quiet when they've achieved so much notoriety that they become a priority for law enforcement. Others reboot their operations to make them more lucrative by revising their tactics, techniques and procedures, updating their software and launching marketing campaigns to recruit new affiliates." The development comes as ransomware attacks are g...

More than 38 million records from 47 different entities that rely on Microsoft's Power Apps portals platform were inadvertently left exposed online, bringing into sharp focus a "new vector of data exposure." "The types of data varied between portals, including personal information used for COVID-19 contact tracing, COVID-19 vaccination appointments, social security numbers for job applicants, employee IDs, and millions of names and email addresses," UpGuard Research team  said  in a disclosure made public on Monday. Governmental bodies like Indiana, Maryland, and New York City, and private companies such as American Airlines, Ford, J.B. Hunt, and Microsoft are said to have been impacted. Among the most sensitive information that was left in the open were 332,000 email addresses and employee IDs used by Microsoft's own global payroll services, as well as more than 85,000 records related to Business Tools Support and Mixed Reality portals. Power Apps  is ...