JAVA.CLASS.ICL : Insecure Class Loader (Java)

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CodeSonar^® 9.2p0

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Java

JAVA.CLASS.ICL : Insecure Class Loader (Java)

Summary

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.

Properties

Class Name

Insecure Class Loader (Java)

Significance

reliability

Mnemonic

JAVA.CLASS.ICL

Example

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);
  }
}

Resolution

Subclass java.security.SecureClassLoader instead of java.lang.ClassLoader.

Relevant Configuration File Parameters

The following configuration file parameters affect checks for this warning class.

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