Security News
Thousands of Citrix Application Delivery Controller and Gateway endpoints remain vulnerable to two critical security flaws disclosed by the company over the last few months. Citrix and the U.S. National Security Agency, earlier this month, warned that CVE-2022-27518 is being actively exploited in the wild by threat actors, including the China-linked APT5 state-sponsored group.
The notorious FIN7 hacking group uses an automated attack system that exploits Microsoft Exchange and SQL injection vulnerabilities to breach corporate networks, steal data, and select targets for ransomware attacks based on financial size. Next, FIN7's internal 'marketing' team scrutinizes new entries and adds comments on the Checkmarks platform to list victims' current revenue, number of employees, domain, headquarters details, and other information that helps pentesters determine if the firm is worth the time and effort of a ransomware attack.
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Play ransomware threat actors are using a new exploit chain that bypasses ProxyNotShell URL rewrite mitigations to gain remote code execution on vulnerable servers through Outlook Web Access. Cybersecurity firm CrowdStrike spotted the exploit while investigating Play ransomware attacks where compromised Microsoft Exchange servers were used to infiltrate the victims' networks.
Microsoft on Thursday flagged a cross-platform botnet that's primarily designed to launch distributed denial-of-service attacks against private Minecraft servers. Called MCCrash, the botnet is characterized by a unique spreading mechanism that allows it to propagate to Linux-based devices despite originating from malicious software downloads on Windows hosts.
Security analysts have discovered two API security vulnerabilities in BrickLink.com, LEGO Group's official second-hand and vintage marketplace for LEGO bricks. BrickLink is the world's largest online community of LEGO fans, with over a million registered members.
Microsoft has addressed an LSASS memory leak issue on some domain controllers that led to freezes and restarts after installing Windows Server updates released during last month's Patch Tuesday. LSASS enforces Windows security policies and handles user logins.
Microsoft says Windows Server updates released during December's Patch Tuesday will trigger errors when trying to create new virtual machines on some Hyper-V hosts. [...]
A previously undocumented Python backdoor targeting VMware ESXi servers has been spotted, enabling hackers to execute commands remotely on a compromised system. VMware ESXi is a virtualization platform commonly used in the enterprise to host numerous servers on one device while using CPU and memory resources more effectively.
Three vulnerabilities in the American Megatrends MegaRAC Baseboard Management Controller software impact server equipment used in many cloud service and data center providers. The flaws were discovered by Eclypsium in August 2022 and could enable attackers, under certain conditions, to execute code, bypass authentication, and perform user enumeration.