The Qwiet blog

Over the last few weeks, log4j has been the focus in most organizations. It continues to dominate tech media as the FTC threatens action against unpatched systems and Microsoft warns of continued exploits of the vulnerability. We have covered it in detail here, here, and here. In this blog, we will focus on how you […]

By now you’ve probably already heard of the name “Log4j”. What happened Late November this year, a Chinese researcher named Chen Zhaojun privately disclosed to Log4j maintainers that version 2 of Log4j contains a critical vulnerability that allows unauthenticated remote code execution (RCE) in applications that utilize the library. On December 9th, the vulnerability was […]

It shouldn’t be surprising that application security has become more important over the last few years. As part of the move to the cloud, applications have become the foundation of business operations. Today, more companies use more applications to do more things than ever before. SaaS applications transmit, store, and process large amounts of sensitive […]

For companies writing and maintaining software at scale today, SAST (Static Application Security Testing) tools have become essential for increasing code security and reducing cyber risk. First-party code remains a frequent target for attacks on all types of organizations, with attackers probing applications constantly to look for weaknesses and vulnerabilities, known and unknown. A wide […]

Open Source Software (OSS) is at the core of today’s information technology. About 80% of companies run their operations on OSS and 96% of applications are built using open source components. Most of today’s commercial products are shipped with some OSS libraries. This also means that securing open source dependencies and fixing open source vulnerabilities […]

Apache log4j2 is one of the most widely utilized logging library in the Java ecosystem. Many applications depend on log4j that include and are not limited to VMware, Apple, Twitter, Minecraft to plethora of open-source projects like Apache Solr, Apache Druid, and many more. On November 30, 2021, the Apache log4j2 team became aware of […]

On 9 December 2021, Apache disclosed that the Log4j 2 utility contains a critical vulnerability that allows unauthenticated remote code execution (RCE), a serious issue that impacts a large number of applications. This post is coauthored by Chetan Conikee, Fabian Yamaguchi, and Katie Horne. What is affected? Log4j is a popular open source logging package […]

When learning how to find, exploit, or prevent different types of security vulnerabilities, you’ll want to understand the vulnerability’s root causes and what happens to an application when it’s exploited. Today, we’ll talk about remote code execution (RCE), it’s mechanisms, and how you can spot it in source code. Remote code execution and command injection […]

Java was originally designed with security in mind, which makes its present-day reputation for being insecure unfortunate. Yet it is probably inevitable that the flaws of a twenty-five-year-old language would be discovered and exploited. Especially with a language like Java which still ranks among the top three most popular programming languages today. Java is not […]