A clever new Linux malware is breaking into systems and then shutting the door behind it to avoid detection

A hacker was recently spotted patching someone’s vulnerable cloud Linux instance – but they did not do it out of the goodness of their heart. Security researchers Red Canary observed a threat actor abusing a maximum severity flaw, tracked as Read More …

Apache Under the Lens: Tomcat’s Partial PUT and Camel’s Header Hijack

In March 2025, Apache disclosed CVE-2025-24813, a vulnerability impacting Apache Tomcat. This is a widely used platform that allows Apache web servers to run Java-based web applications. The flaw allows remote code execution, affecting Apache Tomcat versions 9.0.0.M1 to 9.0.98, Read More …

Proof-of-Concept Released for Critical Apache Struts Vulnerability

Apache has released a security bulletin addressing a critical vulnerability in Apache Struts 2. Apache Struts is an open-source model-view-controller (MVC) framework for creating Java web applications. CVE-2024-53677 is a ‘Unrestricted Upload of File with Dangerous Type’ vulnerability and has Read More …

Weaponizing Apache OFBiz CVE-2023-51467

On December 26, SonicWall disclosed an authentication bypass affecting Apache OFBiz. SonicWall demonstrated the vulnerability, assigned CVE-2023-51467, by accessing the protected HTTP endpoint /webtools/control/ping without authentication. While that proved the vulnerability existed, it did not demonstrate arbitrary code execution. However, Read More …

GoTitan Botnet – Ongoing Exploitation on Apache ActiveMQ

This past October, Apache issued a critical advisory addressing CVE-2023-46604, a vulnerability involving the deserialization of untrusted data in Apache. On November 2, the Cybersecurity and Infrastructure Security Agency (CISA) added CVE-2023-46604 to its known exploited list, KEV Catalog, indicating Read More …

Ransomware gang HelloKitty exploits critical Apache ActiveMQ bug CVE-2023-46604

Beginning Friday, October 27, Rapid7 Managed Detection and Response (MDR) identified suspected exploitation of Apache ActiveMQ CVE-2023-46604 in two different customer environments. In both instances, the adversary attempted to deploy ransomware binaries on target systems in an effort to ransom Read More …

Budworm: Espionage Group Returns to Targeting U.S. Organizations

The Budworm espionage group has mounted attacks over the past six months against a number of strategically significant targets, including the government of a Middle Eastern country, a multinational electronics manufacturer, and a U.S. state legislature. The latter attack is Read More …