CISA released a warning to federal agencies on May 18 that APT actors are actively exploiting recent vulnerabilities found in VMware, including CVE-2022-22954. Your first thought may have been to want new signatures, indicators, and/or behavioral techniques to detect attempted and successful exploits. If you’re a Zeek user or Corelight customer, you’ll find that sometimes you’re already getting what you need.
American novelist F. Scott Fitzgerald famously wrote that “the test of a first-rate intelligence is the ability to hold two opposing ideas in mind at the same time, and still retain the ability to function.” All experienced security practitioners learn to master this mental trick. On the one hand, they believe efforts to prevent and detect breaches will be effective. On the other hand, they diligently prepare for the day when their efforts will fail.
CVE-2022-26809 was patched in Microsoft’s previous Patch Tuesday (April 12) and it’s a doozy: remote code execution on affected versions of DCE/RPC hosts. The vulnerability attracted a lot of attention in the security community, both because of its severity but also because it appears to be really hard to trigger.
Corelight is pleased to announce our integration with AWS’s Traffic Mirroring to Gateway Load Balancer (GWLB) Endpoint as a Target. This integration simplifies the monitoring of network traffic and generating Corelight data in massively scaled-out public cloud environments. When it comes to monitoring network traffic today, we see two primary deployment patterns, each with their own pain points.
Editor’s note: This is the latest in a series of posts we have planned over the next several weeks where we explore topics such as network monitoring in Kubernetes, using sidecars to sniff and tunnel traffic, show a real-world example of detecting malicious traffic between containers, and more! Please subscribe to the blog, or come back for more each week.
What do I say if my team discovers a breach of our digital assets? This is a question that requires understanding “defensible disclosure,” a term first employed in the statistical, medical, legal, and financial communities.* Understanding what this term means and how to live up to its expectations is key in an age where organizations regularly handle intrusions and, sometimes, suffer breaches.
This month, Microsoft announced two vulnerabilities in portmap, which is part of ONC RPC, on Windows systems. This blog will discuss Zeek detection packages for CVE-2022-24491 and CVE-2022-24497 developed by Corelight Labs.
Monitoring container traffic and extracting rich security-centric metadata provides SOC analysts an inviolable source of truth for threat detection and incident investigation. This data complements the deep visibility provided by container agents and broad visibility through monitoring audit logs.
