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Details have emerged about a newly identified security flaw in the Linux kernel that could allow a user to gain elevated privileges on a target host. Dubbed  StackRot  ( CVE-2023-3269 , CVSS score: 7.8), the flaw impacts Linux versions 6.1 through 6.4. There is no evidence that the shortcoming has been exploited in the wild to date. "As StackRot is a Linux kernel vulnerability found in the memory management subsystem, it affects almost all kernel configurations and requires minimal capabilities to trigger," Peking University security researcher Ruihan Li  said . "However, it should be noted that maple nodes are freed using RCU callbacks, delaying the actual memory deallocation until after the RCU grace period. Consequently, exploiting this vulnerability is considered challenging." Following  responsible disclosure  on June 15, 2023, it has been  addressed  in stable versions 6.1.37, 6.3.11, and 6.4.1 as of July 1, 2023, after a two-week effort le...

As technology advances and organizations become more reliant on data, the risks associated with data breaches and cyber-attacks also increase. The introduction of data privacy laws, such as the GDPR, has made it mandatory for organizations to disclose breaches of personal data to those affected. As such, it has become essential for businesses to protect themselves from the financial and reputational costs of cyber incidents. One solution to help organizations protect themselves is cyber insurance, despite the rising costs of cyber insurance, where the average  price in the U.S. rose 79%  in the second quarter of 2022. Also, with strict eligibility requirements that have emerged in response to risk and sharp spikes in successful breaches during and post-COVID-19, cyber insurance remains essential for organizations to protect sensitive customer information and their own data from falling into the wrong hands. While cyber insurance is not a one-size-fits-all solution and may n...

Cybersecurity researchers have unearthed an attack infrastructure that's being used as part of a "potentially massive campaign" against cloud-native environments. "This infrastructure is in early stages of testing and deployment, and is mainly consistent of an aggressive cloud worm, designed to deploy on exposed JupyterLab and Docker APIs in order to deploy  Tsunami malware , cloud credentials hijack, resource hijack, and further infestation of the worm," cloud security firm Aqua  said . The activity, dubbed  Silentbob  in reference to an AnonDNS domain set up by the attacker, is said to be linked to the infamous cryptojacking group tracked as  TeamTNT , citing overlaps in tactics, techniques, and procedures (TTPs). However, the involvement of an "advanced copycat" hasn't been ruled out. Aqua's investigation was prompted in the aftermath of an attack targeting its honeypot in early June 2023, leading to the discovery of four malicious cont...

A suspected senior member of a French-speaking hacking crew known as OPERA1ER has been arrested as part of an international law enforcement operation codenamed Nervone, Interpol has announced. "The group is believed to have stolen an estimated USD 11 million -- potentially as much as 30 million -- in more than 30 attacks across 15 countries in Africa, Asia, and Latin America," the agency  said . The arrest was made by authorities in Côte d'Ivoire early last month. Additional insight was provided by the U.S. Secret Service's Criminal Investigative Division and Booz Allen Hamilton DarkLabs. The financially motivated collective is also known by the aliases Common Raven, DESKTOP-GROUP, and NX$M$. Its modus operandi was  first exposed  by Group-IB and Orange CERT Coordination Center (Orange-CERT-CC) in November 2022, detailing its intrusions on banks, financial services, and telecom companies between March 2018 and October 2022. Earlier this January, Broadcom's S...

A sophisticated stealer-as-a-ransomware threat dubbed  RedEnergy  has been spotted in the wild targeting energy utilities, oil, gas, telecom, and machinery sectors in Brazil and the Philippines through their LinkedIn pages. The .NET malware "possesses the ability to steal information from various browsers, enabling the exfiltration of sensitive data, while also incorporating different modules for carrying out ransomware activities," Zscaler researchers Shatak Jain and Gurkirat Singh  said  in a recent analysis. The objective, the researchers noted, is to couple data theft with encryption with the goal of inflicting maximum damage to the victims. The starting point for the multi-stage attack is a  FakeUpdates  (aka SocGholish) campaign that tricks users into downloading JavaScript-based malware under the guise of web browser updates. What makes it novel is the use of reputable LinkedIn pages to target victims, redirecting users clicking on the website ...