The discovery of the Log4Shell vulnerability in the ubiquitous Apache Log4j package is a singular event in terms of both its impact and severity. Over 1 million attack attempts exploiting the Log4Shell vulnerability were detected within days after it was exposed, and it may take years before we see its full impact.
The Log4J library is one of the most widely-used logging libraries for Java code. On the 24th of November 2021, Alibaba’s Cloud Security Team found a vulnerability in the Log4J, also known as log4shell, framework that provides attackers with a simple way to run arbitrary code on any machine that uses a vulnerable version of the Log4J. This vulnerability was publicly disclosed on the 9th of December 2021.
The announcement of Log4j vulnerability cve-2021-44228 sent security and development teams into a tailspin and highlights the one of biggest challenges of open source security: dependency management. The open source libraries that make up up to 80% of our applications are often a tangled web of dependencies.
As the threat landscape changes and advances with time, being able to address the most common types of cyber security vulnerabilities has gained the utmost importance. In this article, we will consider various types of cyber security vulnerabilities and how you can mitigate them. As information becomes an organization’s most important asset, cyber security gains increasingly more priority.
Note: This post first appeared in r/CrowdStrike. First and foremost: if you’re reading this post, I hope you’re doing well and have been able to achieve some semblance of balance between life and work. It has been, I think we can all agree, a wild December in cybersecurity (again). At this time, it’s very likely that you and your team are in the throes of hunting, assessing and patching implementations of Log4j2 in your environment.
The last week has been a wild ride for just about everyone in the technology world due to the public disclosure of the Log4Shell vulnerability. As a developer security company, Snyk has built our business around proactive automation to identify and fix security issues in applications. To say we’ve been busy this week would be an understatement.
The notorious Log4Shell vulnerability CVE-2021-45046, has put Log4j in the spotlight, and grabbed the entire Java community’s attention over the last couple of weeks. Maintainers of Java projects that use Log4j have most probably addressed the issue. Meanwhile, non-java developers are enjoying relative peace of mind, knowing that they are unaffected by one of the major vulnerabilities found in recent years. Unfortunately, this is an incorrect assumption.
If you have access to the internet, it’s likely that you have already heard of the critical vulnerability in the Log4j library. A zero-day vulnerability in the Java library Log4j, with the assigned CVE code of CVE-2021-44228, has been disclosed by Chen Zhaojun, a security researcher in the Alibaba Cloud Security team. It’s got people worried—and with good reason.
