J2EE Bad Practices: Use of System.exit()
A J2EE application uses System.exit(), which also shuts down its container.
It is never a good idea for a web application to attempt to shut down the application container. Access to a function that can shut down the application is an avenue for Denial of Service (DoS) attacks.
The following examples help to illustrate the nature of this weakness and describe methods or techniques which can be used to mitigate the risk.
Note that the examples here are by no means exhaustive and any given weakness may have many subtle varieties, each of which may require different detection methods or runtime controls.
Included in the doPost() method defined below is a call to System.exit() in the event of a specific exception.
Weaknesses in this category are related to insufficient control flow management.
Weaknesses in this category are related to the rules and recommendations in the Exceptional Behavior (ERR) section of the SEI CERT Oracle Secure Coding Standard for Java.
This category identifies Software Fault Patterns (SFPs) within the Use of an Improper API cluster (SFP3).
This view (slice) covers all the elements in CWE.
This view (slice) lists weaknesses that can be introduced during implementation.
This view (slice) covers issues that are found in Java programs that are not common to all languages.