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Cybersecurity researchers have disclosed three security flaws in the Rack Ruby web server interface that, if successfully exploited, could enable attackers to gain unauthorized access to files, inject malicious data, and tamper with logs under certain conditions. The vulnerabilities, flagged by cybersecurity vendor OPSWAT, are listed below - CVE-2025-27610 (CVSS score: 7.5) - A path traversal vulnerability that could be used to gain access to all files under the specified root: directory, assuming an attacker can determine the paths to those files CVE-2025-27111 (CVSS score: 6.9) - An improper neutralization of carriage return line feeds ( CRLF ) sequences and improper output neutralization for logs vulnerability that could be used to manipulate log entries and distort log files CVE-2025-25184 (CVSS score: 5.7) - An improper neutralization of carriage return line feeds (CRLF) sequences and improper output neutralization for logs vulnerability that could be used to manipulate...

Cybersecurity researchers are warning about a new malware called DslogdRAT that's installed following the exploitation of a now-patched security flaw in Ivanti Connect Secure (ICS). The malware, along with a web shell, were "installed by exploiting a zero-day vulnerability at that time, CVE-2025-0282, during attacks against organizations in Japan around December 2024," JPCERT/CC researcher Yuma Masubuchi said in a report published Thursday. CVE-2025-0282 refers to a critical security flaw in ICS that could allow unauthenticated remote code execution. It was addressed by Ivanti in early January 2025. However, the shortcoming has been exploited as a zero-day by a China-nexus cyber espionage group dubbed UNC5337 to deliver the SPAWN ecosystem of malware, as well as other tools like DRYHOOK and PHASEJAM. The deployment of the latter two malware strains has not been attributed to any known threat actor. Since then, both JPCERT/CC and the U.S. Cybersecurity and Infrastr...

At least six organizations in South Korea have been targeted by the prolific North Korea-linked Lazarus Group as part of a campaign dubbed Operation SyncHole . The activity targeted South Korea's software, IT, financial, semiconductor manufacturing, and telecommunications industries, according to a report from Kaspersky published today. The earliest evidence of compromise was first detected in November 2024. The campaign involved a "sophisticated combination of a watering hole strategy and vulnerability exploitation within South Korean software," security researchers Sojun Ryu and Vasily Berdnikov said . "A one-day vulnerability in Innorix Agent was also used for lateral movement." The attacks have been observed paving the way for variants of known Lazarus tools such as ThreatNeedle , AGAMEMNON , wAgent , SIGNBT , and COPPERHEDGE . What makes these intrusions particularly effective is the likely exploitation of a security vulnerability in Cross EX, a legi...

SaaS Adoption is Skyrocketing, Resilience Hasn't Kept Pace SaaS platforms have revolutionized how businesses operate. They simplify collaboration, accelerate deployment, and reduce the overhead of managing infrastructure. But with their rise comes a subtle, dangerous assumption: that the convenience of SaaS extends to resilience. It doesn't. These platforms weren't built with full-scale data protection in mind . Most follow a shared responsibility model — wherein the provider ensures uptime and application security, but the data inside is your responsibility. In a world of hybrid architectures, global teams, and relentless cyber threats, that responsibility is harder than ever to manage. Modern organizations are being stretched across: Hybrid and multi-cloud environments with decentralized data sprawl Complex integration layers between IaaS, SaaS, and legacy systems Expanding regulatory pressure with steeper penalties for noncompliance Escalating ransomware threats and inside...

Cybersecurity researchers have demonstrated a proof-of-concept (PoC) rootkit dubbed Curing that leverages a Linux asynchronous I/O mechanism called io_uring to bypass traditional system call monitoring. This causes a "major blind spot in Linux runtime security tools," ARMO said. "This mechanism allows a user application to perform various actions without using system calls," the company said in a report shared with The Hacker News. "As a result, security tools relying on system call monitoring are blind' to rootkits working solely on io_uring." io_uring, first introduced in Linux kernel version 5.1 in March 2019, is a Linux kernel system call interface that employs two circular buffers called a submission queue (SQ) and a completion queue (CQ) between the kernel and an application (i.e., user space) to track the submission and completion of I/O requests in an asynchronous manner. The rootkit devised by ARMO facilitates communication between ...

The Evolving Healthcare Cybersecurity Landscape   Healthcare organizations face unprecedented cybersecurity challenges in 2025. With operational technology (OT) environments increasingly targeted and the convergence of IT and medical systems creating an expanded attack surface, traditional security approaches are proving inadequate. According to recent statistics, the healthcare sector experienced a record-breaking year for data breaches in 2024, with over 133 million patient records exposed. The average cost of a healthcare data breach has now reached $11 million, making it the most expensive industry for breaches.  What's changed dramatically is the focus of attackers. No longer content with merely extracting patient records, cybercriminals are now targeting the actual devices that deliver patient care. The stakes have never been higher, with ransomware now representing 71% of all attacks against healthcare organizations and causing an average downtime of 11 days per inc...

As many as 159 CVE identifiers have been flagged as exploited in the wild in the first quarter of 2025, up from 151 in Q4 2024. "We continue to see vulnerabilities being exploited at a fast pace with 28.3% of vulnerabilities being exploited within 1-day of their CVE disclosure," VulnCheck said in a report shared with The Hacker News. This translates to 45 security flaws that have been weaponized in real-world attacks within a day of disclosure. Fourteen other flaws have been exploited within a month, while another 45 flaws were abused within the span of a year.  The cybersecurity company said a majority of the exploited vulnerabilities have been identified in content management systems (CMSes), followed by network edge devices, operating systems, open-source software, and server software. The breakdown is as follows - Content Management Systems (CMS) (35) Network Edge Devices (29) Operating Systems (24) Open Source Software (14) Server Software (14) The leading...

The threat actors behind the Darcula phishing-as-a-service ( PhaaS ) platform have released new updates to their cybercrime suite with generative artificial intelligence (GenAI) capabilities. "This addition lowers the technical barrier for creating phishing pages, enabling less tech-savvy criminals to deploy customized scams in minutes," Netcraft said in a fresh report shared with The Hacker News. "The new AI-assisted features amplify Darcula's threat potential by simplifying the process to build tailored phishing pages with multi-language support and form generation — all without any programming knowledge." Darcula was first documented by the cybersecurity company in March 2024 as a toolkit that leveraged Apple iMessage and RCS to send smishing messages to trick recipients into clicking on bogus links under the guise of postal services like USPS. Earlier this year, the operators of Darcula PhaaS began testing a major update that enabled customers to c...

A critical security flaw has been disclosed in the Commvault Command Center that could allow arbitrary code execution on affected installations. The vulnerability, tracked as CVE-2025-34028 , carries a CVSS score of 9.0 out of a maximum of 10.0. "A critical security vulnerability has been identified in the Command Center installation, allowing remote attackers to execute arbitrary code without authentication," Commvault said in an advisory published on April 17, 2025. "This vulnerability could lead to a complete compromise of the Command Center environment." It impacts the 11.38 Innovation Release, from versions 11.38.0 through 11.38.19, and has been resolved in the following versions - 11.38.20 11.38.25 watchTowr Labs researcher Sonny Macdonald, who has been credited with discovering and reporting the flaw on April 7, 2025, said in a report shared with The Hacker News that it could be exploited to achieve pre-authenticated remote code execution. Specif...

WhatsApp has introduced an extra layer of privacy called Advanced Chat Privacy that allows users to block participants from sharing the contents of a conversation in traditional chats and groups. "This new setting available in both chats and groups helps prevent others from taking content outside of WhatsApp for when you may want extra privacy," WhatsApp said in a statement. The optional feature, when enabled, prevents others from exporting chats, auto-downloading media to their phone, and using messages for artificial intelligence (AI) features. However, it's worth noting users can still take individual screenshots, or manually download the media. The popular messaging service said the feature is "best used" when engaging in sensitive conversations with groups where it's possible that users may not know everyone closely. The feature, WhatsApp said, is rolling to all users who are on the latest version of the application. The disclosure comes as the ...

Multiple threat activity clusters with ties to North Korea (aka Democratic People's Republic of Korea or DPRK) have been linked to attacks targeting organizations and individuals in the Web3 and cryptocurrency space. "The focus on Web3 and cryptocurrency appears to be primarily financially motivated due to the heavy sanctions that have been placed on North Korea," Google-owned Mandiant said in its M-Trends report for 2025 shared with The Hacker News. "These activities aim to generate financial gains, reportedly funding North Korea's weapons of mass destruction (WMD) program and other strategic assets." The cybersecurity firm said DPRK-nexus threat actors have developed custom tools written in a variety of languages such as Golang, C++, and Rust, and are capable of infecting Windows, Linux, and macOS operating systems. At least three threat activity clusters it tracks as UNC1069, UNC4899, and UNC5342 have been found to target members of the cryptocurren...