What Is Log4Shell And How To Protect Your Linux System Against It
The Log4Shell (CVE-2021-44228) vulnerability is described by many cybersecurity researchers and experts to be the most critical zero-day vulnerability of all time. It affects a widely-used Java utility by the name of Log4j, which has been around since 2001 for logging and communicating events, such as routine system operations and software errors. Here we show you how to protect your Linux system against it. How Does the Log4Shell Vulnerability Work? On a fundamental level, the vulnerability is caused by improper input validation....