Tag Archives: vulnerabilities

Thousands of Linux systems infected by stealthy malware since 2021

This Reddit comment posted to the CentOS subreddit is typical. An admin noticed that two servers were infected with a cryptocurrency hijacker with the names perfcc and perfctl. The admin wanted help investigating the cause. “I only became aware of the malware because my monitoring setup alerted me to 100% CPU utilization,” the admin wrote… Read More »

Attackers exploit critical Zimbra vulnerability using cc’d email addresses

Attackers are actively exploiting a critical vulnerability in mail servers sold by Zimbra in an attempt to remotely execute malicious commands that install a backdoor, researchers warn. The vulnerability, tracked as CVE-2024-45519, resides in the Zimbra email and collaboration server used by medium and large organizations. When an admin manually changes default settings to enable… Read More »

Systems used by courts and governments across the US riddled with vulnerabilities

Getty Images reader comments 19 Public records systems that courts and governments rely on to manage voter registrations and legal filings have been riddled with vulnerabilities that made it possible for attackers to falsify registration databases and add, delete, or modify official documents. Over the past year, software developer turned security researcher Jason Parker has… Read More »

Zyxel warns of vulnerabilities in a wide range of its products

Getty Images reader comments 7 Networking hardware-maker Zyxel is warning of nearly a dozen vulnerabilities in a wide array of its products. If left unpatched, some of them could enable the complete takeover of the devices, which can be targeted as an initial point of entry into large networks. The most serious vulnerability, tracked as… Read More »

Unpatchable 0-day in surveillance cam is being exploited to install Mirai

reader comments 20 Malicious hackers are exploiting a critical vulnerability in a widely used security camera to spread Mirai, a family of malware that wrangles infected Internet of Things devices into large networks for use in attacks that take down websites and other Internet-connected devices. The attacks target the AVM1203, a surveillance device from Taiwan-based… Read More »

Hackers infect ISPs with malware that steals customers’ credentials

Getty Images reader comments 24 Malicious hackers likely working on behalf of the Chinese government have been exploiting a high-severity zero-day vulnerability that allowed them to infect at least four US-based ISPs with malware that steals credentials used by downstream customers, researchers said Tuesday. The vulnerability resides in the Versa Director, a virtualization platform that… Read More »

Windows 0-day was exploited by North Korea to install advanced rootkit

Getty Images reader comments 32 A Windows zero-day vulnerability recently patched by Microsoft was exploited by hackers working on behalf of the North Korean government so they could install custom malware that’s exceptionally stealthy and advanced, researchers reported Monday. The vulnerability, tracked as CVE-2024-38193, was one of six zero-days—meaning vulnerabilities known or actively exploited before… Read More »

Vulnerability in Cisco Smart Software Manager lets attackers change any user password

reader comments 26 Cisco on Wednesday disclosed a maximum-security vulnerability that allows remote threat actors with no authentication to change the password of any user, including those of administrators with accounts, on Cisco Smart Software Manager On-Prem devices. The Cisco Smart Software Manager On-Prem resides inside the customer premises and provides a dashboard for managing… Read More »

Exim vulnerability affecting 1.5 million servers lets attackers attach malicious files

reader comments 3 More than 1.5 million email servers are vulnerable to attacks that can deliver executable attachments to user accounts, security researchers said. The servers run versions of the Exim mail transfer agent that are vulnerable to a critical vulnerability that came to light 10 days ago. Tracked as CVE-2024-39929 and carrying a severity… Read More »

Threat actors exploited Windows 0-day for more than a year before Microsoft fixed it

Getty Images reader comments 9 Threat actors carried out zero-day attacks that targeted Windows users with malware for more than a year before Microsoft fixed the vulnerability that made them possible, researchers said Tuesday. The vulnerability, present in both Windows 10 and 11, causes devices to open Internet Explorer, a legacy browser that Microsoft decommissioned… Read More »