How to check the current version of Tomcat used by Data Center Security (DCS) or Critical System Protection (CSP) in your environment.
The version of Tomcat can be found in this JAR file: <DCS install folder>\tomcat\lib\catalina.jar
Use a tool such as 7-zip capable of unzipping catalina.jar file and look in the file org\apache\catalina\util\ServerInfo.properties.
The following line is from the ServerInfo.properties file within a catalina.jar file
-----------------------
server.info=Apache Tomcat/7.0.82
server.number=7.0.82.0
server.built=Sep 29 2017 12:23:15 UTC
-----------------------