Cloud services like Steam, Apple iCloud, as well as apps like Many, many services are vulnerable to this exploit. We're the experts that wrote those tools and, since we first wrote this post in December of 2021, we've successfully gone on to help thousands of companies, from startups to Fortune 500 companies, fix vulnerabilities like Log4Shell and Spring4Shell across their entire software stack. If you're concerned that you may be impacted by Log4Shell, you can quickly run a free scan against your code by installing LunaTrace on GitHub or by downloading our scanning CLI tool from GitHub. This post provides resources to help you understand the vulnerability and how to mitigate it. While we had initially given it the name "Log4Shell", the vulnerability has now been published as CVE-2021-44228 on NVD. The 0-day was tweeted along with a POC posted on The impact of this vulnerability is quite severe. Given how ubiquitous this library is, the severity of the exploit (full server control), and how easy it is to exploit, Popular Java logging library log4j (version 2), called Log4Shell, was discovered that results in Remote Code Execution (RCE) simply by On Thursday, December 9th a 0-day exploit in the Originally Posted December 9th & Last Updated August 1st, 3:30pm PDTįixing Log4Shell? Claim a free vulnerability scan on our dedicated security platform and generate a detailed report in minutes. Log4Shell: RCE 0-day exploit found in log4j, a popular Java logging package How to build an Open Source Business in 2021 (Part 1). ![]()
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