There is no reason to have a ``++main++`` method in a web application. It may have been useful for debugging during application development, but such a method should never make it into production. Having a ``++main++`` method in a web application opens a door to the application logic that an attacker may never be able to reach (but watch out if one does!), but it is a sloppy practice and indicates that other problems may be present.
This rule raises an issue when a ``++main++`` method is found in a servlet or an EJB.
== Noncompliant Code Example
----
public class MyServlet extends HttpServlet {
public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
if (userIsAuthorized(req)) {
updatePrices(req);
}
}
public static void main(String[] args) { // Noncompliant
updatePrices(req);
}
}
----
== See
* https://www.owasp.org/index.php/Top_10-2017_A3-Sensitive_Data_Exposure[OWASP Top 10 2017 Category A3] - Sensitive Data Exposure
