Apache Log4j Reviews and Details

Social recommendations and mentions

• Most Effective Approaches for Debugging Applications

  Structured logging transforms debugging by providing a detailed, searchable record of an application’s state, including variable values, stack traces, and user actions. According to Gartner, organizations with robust logging systems resolve production issues 40% faster. Doug Crawford, President and Founder of Best Trade Schools, highlights their value: “Implementing a structured logging system… makes isolating the... - Source: dev.to / over 1 year ago

• Studying Log4Shell

  The official website. The vulnerability was introduced in 2.0-beta7 which was released in 2013. Source: over 3 years ago

• Apache POI Setup Logging Error

  What you need is log4j-core, what you downloaded is some kind of connector between log4j and JUL. Tbh I don't know what JUL is, but that's not important. You can get log4j-core on from the official website - https://logging.apache.org/log4j/2.x/ or in maven repo. In case you're not using maven, I highly, highly recommend you using it for managing your dependencies. Source: over 3 years ago

• 5 Best Logging Solutions for Java

  Log4J(https://logging.apache.org/log4j/2.x/) is a Java-based logging framework. It is a part of Apache Logging Services. It was also the most popular and widely used Java logging solution until the exposure of its Log4Shell vulnerability last year. - Source: dev.to / about 4 years ago

• Reduce Security Risks by Keeping Dependencies Up-To-Date with GitHub Actions and Dependabot

  Almost nothing is more ubiquitous in applications than logging libraries. No matter which type of application - hastily thrown-together prototypes, decades-old enterprise monoliths, newly built event-driven serverless apps - there is always the need to log. Even in non-production-grade applications where standard observability patterns such as monitoring and alerting might not be applied - logging is usually... - Source: dev.to / over 4 years ago

• System Logger

  Most applications currently use Log4J2 or SLF4J. Both provide a compatible System.Logger implementation. - Source: dev.to / over 4 years ago

• Log4J

  Latest version with fixes is 2.17.1 according to their site. Https://logging.apache.org/log4j/2.x/. Source: almost 5 years ago

• Why didn't Minecraft get patched with Log4j version 2.17??

  Apache's homepage for Log4j states "Log4j2 versions 2.0-beta7 through 2.17.0 are vulnerable" to this attack and the best course of action is to update to at least 2.17.1. Even version 2.16 was found to have a denial of service vulnerability. So unless you want your poor computer to receive all the requests in the known universe and crash, you need at least version 2.17.1. Meanwhile I'm sitting here doing a... Source: almost 5 years ago

• A new RCE vulnerability on Log4j 2.17.0 (CVE-2021-4483)

  Log4j 2.17.1 was released because a new vulnerability on RCE (Remote Code Execution) had been found in 2.17.0. (CVE-2021-4483). - Source: dev.to / almost 5 years ago

• Log4j vulnerability NOT Fixed with log4j 2.16, TWS update coming.

  TWS 1012 and TWS 981 as of todays installer 12-27-2021, use log4j-api-2.16.0.jar and log4j-core-2.16.0.jar, which per https://logging.apache.org/log4j/2.x/ "2.16.0 did not protect from uncontrolled recursion from self-referential lookups ". Source: almost 5 years ago

• How to Check if a Java Project Depends on A Vulnerable Version of Log4j

  The Log4j vulnerability tracked as CVE-2021-44228 (also known as Log4Shell) allows an attacker to execute arbitrary code in a system. If your application uses Log4j from version 2.0-alpha1 to 2.14.1, you should update to the latest version (2.16.0 at the time of writing this) as soon as possible. - Source: dev.to / almost 5 years ago

• Log4j 2: New vulnerability on DoS in 2.16.0 and below

  Log4j 2.17.0 was released due to security reason. It fixes DoS (denial-of-service) vulnerability in 2.16.0 and below on v2. - Source: dev.to / almost 5 years ago

• Log4j MEGATHREAD

  Before we get to the video links, here is the Apache Log4j 2 website for official news and updates: https://logging.apache.org/log4j/2.x/. Source: almost 5 years ago

• KB - Log4J2 Mitigation

  But, Apache says Log4j 2.15 is still vulnerable and we have to use 2.16: Link to Apache Log4j page. Source: almost 5 years ago

• On Prem affected by Log4shell

  I recommend checking out the official Apache log4j page. This is where I am basing my information. Someone please correct me if I'm wrong. Https://logging.apache.org/log4j/2.x/. Source: almost 5 years ago

• 2021-12-15: Log4Shell (CVE-2021-44228 & CVE-2021-45046) Update

  The current recommended action for all those impacted by CVE-2021-44228 or CVE-2021-45046 is to update to Log4j 2.16.0or higher. Source: almost 5 years ago

• New Log4j vulnerability was found in 2.15.0 which is less dangerous

  As to Log4j, found and reported was the new vulnerability also in 2.15.0 as CVE-2021-45046. It was fixed in the next 2.16.0 released in 13 Dec 2021. Well, it is less severe than one in 2.14.0 and above aka log4shell. - Source: dev.to / almost 5 years ago

• New cyber vulnerability poses 'severe risk,' DHS says.

  And Log4j already has a patch in place in the latest version. (bottom of page). Source: almost 5 years ago

• Log4Shell Scanner multi-server, massively parallel PowerShell

  The mitigation from the log4j site (see the bottom under "CVE-2021-44228") is "to remove the JndiLookup class from the classpath: zip -q -d log4j-core-*.jar org/apache/logging/log4j/core/lookup/JndiLookup.class". Source: almost 5 years ago

• About Apache Log4j RCE vulnerability (CVE-2021-44228)

  Caused by Apache Log4j's JNDI ("Java Naming and Directory Interface") features. - Source: dev.to / almost 5 years ago

• Apache #Log4j RCE vulnerability (CVE-2021-44228): Attack trials detected

  Today, our company detected attack trials on Apache Log4j RCE vulnerability (CVE-2021-44228) due to its JNDI ("Java Naming and Directory Interface") features to one of our servers in Swiss:. - Source: dev.to / almost 5 years ago