Nexus Intelligence Insights:CVE-2020-13935 – Apache Tomcat Websocket – Denial of Service (DoS)

For July’s Nexus Intelligence Insight we take a deep dive into a Denial of Service (DoS) vulnerability impacting the popular Apache Tomcat Websocket component.
The post Nexus Intelligence Insights:CVE-2020-13935 – Apache Tomcat Websock… Continue reading Nexus Intelligence Insights:CVE-2020-13935 – Apache Tomcat Websocket – Denial of Service (DoS)

Sudden increase in resources, no heavy network traffic. What type of attack?

On my Debian web server running Tomcat with an Apache proxy, there was a sudden increase in CPU usage and disk operations. The resource overload caused the website to be very slow and eventually Tomcat automatically restarted to recover fr… Continue reading Sudden increase in resources, no heavy network traffic. What type of attack?

What measures can be taken to prevent Server Side Request Forgery (SSRF) in a JAX-RS Application running on Apache Tomcat?

If I have a an application server that uses an implementation of JAX-RS, and is running as *.war file on an Apache Tomcat server, is there anything special that needs to be done or configured to prevent SSRF attacks?

My naive understandin… Continue reading What measures can be taken to prevent Server Side Request Forgery (SSRF) in a JAX-RS Application running on Apache Tomcat?