19 January 2023
Elastic is deploying a new malware signature to identify the use of the Follina vulnerability. Learn more in this post.
Analysis of Log4Shell vulnerability & CVE-2021-45046
In this post, we cover next steps the Elastic Security team is taking for users to continue to protect themselves against CVE-2021-44228, or Log4Shell.
KNOTWEED Assessment Summary
KNOTWEED deploys the Subzero spyware through the use of 0-day exploits for Adobe Reader and the Windows operating system. Once initial access is gained, it uses different sections of Subzero to maintain persistence and perform actions on the host.
Detecting Exploitation of CVE-2021-44228 (Log4j2) with Elastic Security
This blog post provides a summary of CVE-2021-44228 and provides Elastic Security users with detections to find active exploitation of the vulnerability in their environment. Further updates will be provided to this post as we learn more.
Detection rules for SIGRed vulnerability
The SIGRed vulnerability impacts all systems leveraging the Windows DNS server service (Windows 2003+). To defend your environment, we recommend implementing the detection logic included in this blog post using technology like Elastic Security.
Elastic's response to the Spring4Shell vulnerability (CVE-2022-22965)
Provide executive-level details about CVE-2022-22965, a recently-disclosed remote code execution (RCE) vulnerability also known as “Spring4Shell”.