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Cybersecurity researchers have disclosed what they say is the "first native Spectre v2 exploit" against the Linux kernel on Intel systems that could be exploited to read sensitive data from the memory. The exploit, called Native Branch History Injection (BHI), can be used to leak arbitrary kernel memory at 3.5 kB/sec by bypassing existing Spectre v2/BHI mitigations, researchers from Systems and Network Security Group (VUSec) at Vrije Universiteit Amsterdam  said  in a new study. The shortcoming is being tracked as  CVE-2024-2201 . BHI was  first disclosed  by VUSec in March 2022, describing it as a technique that can get around Spectre v2 protections in modern processors from Intel, AMD, and Arm. While the attack leveraged extended Berkeley Packet Filters (eBPFs), Intel's recommendations to address the problem, among other things, were to disable Linux's unprivileged eBPFs. "Privileged managed runtimes that can be configured to allow an unprivileged user ...

We all know passwords and firewalls are important, but what about the invisible threats lurking beneath the surface of your systems? Identity Threat Exposures (ITEs) are like secret tunnels for hackers – they make your security way more vulnerable than you think. Think of it like this: misconfigurations, forgotten accounts, and old settings are like cracks in your digital fortress walls. Hackers exploit these weaknesses to steal login information, gain sneaky access, and move around your systems unnoticed, whether they're in the cloud or on-site. This upcoming webinar,  " Today's Top 4 Identity Security Threat Exposures: Are You Vulnerable? "  isn't just for tech experts—it's about protecting your business.  We'll use real-world examples and insights from Silverfort's latest report to show you the hidden dangers of ITEs. You'll learn about: The Top 4 Identity Threats You Might Be Overlooking:  We'll name them and explain why they're ...

Microsoft has released security updates for the month of April 2024 to remediate a record  149 flaws , two of which have come under active exploitation in the wild. Of the 149 flaws, three are rated Critical, 142 are rated Important, three are rated Moderate, and one is rated Low in severity. The update is aside from  21 vulnerabilities  that the company addressed in its Chromium-based Edge browser following the release of the  March 2024 Patch Tuesday fixes . The two shortcomings that have come under active exploitation are below - CVE-2024-26234  (CVSS score: 6.7) - Proxy Driver Spoofing Vulnerability CVE-2024-29988  (CVSS score: 8.8) - SmartScreen Prompt Security Feature Bypass Vulnerability While Microsoft's own advisory provides no information about CVE-2024-26234, cybersecurity firm Sophos said it discovered in December 2023 a malicious executable ("Catalog.exe" or "Catalog Authentication Client Service") that's  signed  by a valid M...

A critical security flaw in the Rust standard library could be exploited to target Windows users and stage command injection attacks. The vulnerability, tracked as  CVE-2024-24576 , has a CVSS score of 10.0, indicating maximum severity. That said, it only impacts scenarios where batch files are invoked on Windows with untrusted arguments. "The Rust standard library did not properly escape arguments when invoking batch files (with the bat and cmd extensions) on Windows using the Command API," the Rust Security Response working group  said  in an advisory released on April 9, 2024. "An attacker able to control the arguments passed to the spawned process could execute arbitrary shell commands by bypassing the escaping." The flaw impacts all versions of Rust before 1.77.2. Security researcher  RyotaK  has been credited with discovering and reporting the bug to the CERT Coordination Center ( CERT/CC ). RyotaK said the vulnerability – codenamed BatBadBut – impa...

A threat group of suspected Romanian origin called  RUBYCARP  has been observed maintaining a long-running botnet for carrying out crypto mining, distributed denial-of-service (DDoS), and phishing attacks. The group, believed to be active for at least 10 years, employs the botnet for financial gain, Sysdig said in a report shared with The Hacker News. "Its primary method of operation leverages a botnet deployed using a variety of public exploits and brute-force attacks," the cloud security firm said . "This group communicates via public and private IRC networks." Evidence  gathered  so far suggests that RUBYCARP may have crossover with another threat cluster tracked by Albanian cybersecurity firm Alphatechs under the moniker Outlaw , which has a history of conducting crypto mining and brute-force attacks and has since pivoted to phishing and spear-phishing campaigns to cast a wide net. "These phishing emails often lure victims into revealing sensitive i...

Human rights activists in Morocco and the Western Sahara region are the targets of a new threat actor that leverages phishing attacks to trick victims into installing bogus Android apps and serve credential harvesting pages for Windows users. Cisco Talos is  tracking  the activity cluster under the name  Starry Addax , describing it as primarily singling out activists associated with the Sahrawi Arab Democratic Republic (SADR). Starry Addax's infrastructure – ondroid[.]site and ondroid[.]store – is designed to target both Android and Windows users, with the latter involving fake websites masquerading as login pages for popular social media websites. In light of active investigation into the campaign, Talos said it cannot publicly disclose which websites are being targeted with credential harvesting attacks. "However, the threat actors are establishing their own infrastructure and hosting credential harvesting pages such as fake login pages for media and email servic...

Multiple security vulnerabilities have been disclosed in LG webOS running on its smart televisions that could be exploited to bypass authorization and gain root access on the devices. The findings come from Romanian cybersecurity firm Bitdefender, which discovered and reported the flaws in November 2023. The issues were fixed by LG as part of updates released on March 22, 2024. The vulnerabilities are tracked from CVE-2023-6317 through CVE-2023-6320 and impact the following versions of webOS - webOS 4.9.7 - 5.30.40 running on LG43UM7000PLA webOS 5.5.0 - 04.50.51 running on OLED55CXPUA webOS 6.3.3-442 (kisscurl-kinglake) - 03.36.50 running on OLED48C1PUB webOS 7.3.1-43 (mullet-mebin) - 03.33.85 running on OLED55A23LA A brief description of the shortcomings is as follows - CVE-2023-6317  - A vulnerability that allows an attacker to bypass PIN verification and add a privileged user profile to the TV set without requiring user interaction CVE-2023-6318  - A vulnera...