Notes

Log4Shell, the Worst Java Vulnerability of the Past few Years

A zero-day exploit, now known as "Log4Shell", was discovered in the wild on December 9, 2021. It targeted a critical RCE vulnerability in Log4j. It is an open-source logging program. (Per NIST, in affected versions, JNDI features used in configuration, log messages, and parameters are not protected against attacker controlled LDAP and other JNDI-related endpoints.) Numerous platforms appear to be affected, including Apple, Cloudflare, and Twitter, as well as the plethora of well-known Java ecosystem products that have Log4j integrated into their supply chains for software including Logstash, Apache Kafka, Elasticsearch, and even Minecraft.



The Log4j vulnerability is being viewed as the most serious in the past few years. It could even be more severe than the CVE-2017-538 vulnerability in Apache Struts RCE that led to the massive breach of Equifax. Teamextrememc Minecraft Server The latest vulnerability, according to Bugcrowd founder and CTO Casey Ellis is a toxic mix of a massive attack surface that is easy to exploit, a difficult-to-evaluate dependency and extreme virality. Among other things, it's an opportunity to remind us that supply chains for software have grown extremely complex, with layered inter-dependencies that are usually beyond the reach of automated tools like scanners.



As the dust falls in the future, it will be a defining moment for organizations that have not yet adopted a continuous, platform-powered security testing strategy that combines technology, data and human insight and the force multiplier of the Crowd, to detect and correct vulnerabilities before they cause harm. In a subsequent blog post, we'll describe how that method helped Bugcrowd verify, validate, contextualize, and communicate Log4Shell exposures to customers within hours.



We are available to help you with the following issues:



1. For continuous crowd-powered, continuous detection of Log4Shell exposures around your perimeter, a 30-day "Log4j on Fire" bug bounty solution. Start by reading the full details. 2. This Security Flash video features Casey Ellis and Adam Foster, Application Security Engineers. It provides deeper insights into this vuln's risk profile and the potential impact in the future. 3. A live Q&A session with Casey next week (Monday December. 20 at 10am PST) to answer your questions regarding locating ways to protect yourself and implementing best practices to tackle the Log4j vuln and Log4Shell exploit. Save your seat here. 4. Here's an overview of all our Log4j/Log4Shell resources.



We are very happy for our customers, researchers and team members who are working together to make our digitally connected world safer during this crisis. As always, we'll work through this together!


Here's my website: https://teamextrememc.org/