The Cybersecurity and Infrastructure Security Agency (CISA) has issued an emergency directive in response to a known zero day vulnerability in Log4j. Apache Log4j is a logging framework that is embedded in applications which allow developers to log various types of user activity. It is specifically written in the Java programming language and is used in many different types of enterprise systems and web applications.
If a vulnerable server uses Log4j, the recently discovered flaw allows a threat actor to request a malicious payload from an attacker-controlled server. Threat actors have already begun scanning for this vulnerability to identify unpatched servers prone to compromise.
To mitigate the vulnerability Apache is recommending patching immediately.
Please share the announcement with your IT team or managed service provider to determine if steps need to be taken to secure environment.
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