In today's rapidly evolving cyber threat landscape, organizations face increasingly sophisticated attacks targeting their applications. Understanding these threats and the technologies designed to combat them is crucial. This article delves into the mechanics of a common application attack, using the infamous Log4Shell vulnerability as an example, and demonstrates how Application Detection and Response (ADR) technology effectively safeguards against such zero-day threats. View the Contrast ADR white paper The anatomy of a modern application attack: Log4Shell To illustrate the complexity and severity of modern application attacks, let's examine an attack against the infamous Log4Shell vulnerability (CVE-2021-44228) that sent shockwaves through the cybersecurity world in late 2021. This attack is a prime example of attack chaining, leveraging JNDI Injection, Expression Language (EL) Injection and Command Injection. Technology note: The CVE program catalogs, which publicly disclose computer security flaws, are maintained by MITRE. Each CVE entry has a unique identifier, making it easier for IT professionals to share information about vulnerabilities across different security tools and services. Step 1: Exploitation of the vulnerability The Log4Shell vulnerability affects Log4j, a ubiquitous Java logging framework. The attack begins when a malicious actor sends a specially crafted request to a vulnerable application. This request contains a Java Naming and Directory Interface…Read More