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| CodeSonar® 9.0p0 Hot Tips | CONFIDENTIAL | CodeSecure Inc |
The java.lang.ClassLoader class is used.
Class loaders provide classes to a running Java Virtual Machine. The classical java.lang.ClassLoader class has no strong support for security, while class java.security.SecureClassLoader has additional support for defining classes with an associated code source and permissions.
| Class Name | Insecure Class Loader (Java) | |||
|---|---|---|---|---|
| Significance | reliability | |||
| Mnemonic | JAVA.CLASS.ICL | |||
| Categories |
|
|||
| Availability | Available for Java only. |
|||
| Enabling | Checks for this warning class are
disabled by default. To enable them, add the following WARNING_FILTER
rule to the project configuration file.
WARNING_FILTER += allow class="Insecure Class Loader (Java)" |
Japanese (ja)
public class Unsafe extends ClassLoader { // "Insecure Class Loader (Java)" warning issued here
@Override
public Class<?> loadClass(String name) throws ClassNotFoundException {
System.out.println("I have been requested to load " + name);
return super.loadClass(name);
}
}
In this example, the programmer should subclass the safer java.security.SecureClassLoader class:
public class Safe extends java.security.SecureClassLoader {
@Override
public Class<?> loadClass(String name) throws ClassNotFoundException {
System.out.println("I have been requested to load " + name);
return super.loadClass(name);
}
}
Subclass java.security.SecureClassLoader instead of java.lang.ClassLoader.
The following configuration file parameters affect checks for this warning class.