Title

Java software installed on the web server must be limited to class files and the JAVA virtual machine. (Cat III impact)

Discussion

From the source code in a .java or a .jpp file, the Java compiler produces a binary file with an extension of .class. The .java or .jpp file would, therefore, reveal sensitive information regarding an application’s logic and permissions to resources on the server. By contrast, the .class file, because it is intended to be machine independent, is referred to as bytecode. Bytecodes are run by the Java Virtual Machine (JVM), or the Java Runtime Environment (JRE), via a browser configured to permit Java code.

Check Content

1. Right click on the Start button > Select Search > enter “*.java, *.jpp” in the box titled All or part of the file name. 2. Press Search. NOTE: This search must be completed on all active drives the web server utilizes. NOTE: Files with the extension .class, .jre and .jvm are acceptable. Executables such as java.exe, jre.exe, and jrew.exe are permitted. If files with the extension .java or .jpp are found, this is a finding.

Fix Text

Remove all files from the web server with the following extensions: .java and .jpp.

Additional Identifiers

Rule ID: SV-38118r1_rule

Vulnerability ID: V-2265

Group Title:

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.