Log4j (CVE-2021-44228): Detection, Exploitation and Mitigation
Last week a vulnerability affecting the most common logging packages in Java, Log4j, was made public, complete with exploit code. The vulnerability is rated with a critical severity rating of 10. Successful exploitation allows for a very uncomplicated remote command execution without requiring any authentication over the Internet resulting in a complete compromise of data and system confidentiality, integrity and availability. This blogpost explains the detection methods, exploitation techniques and mitigation instructions of the vulnerability.