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package org.joychou.controller;
import org.dom4j.io.SAXReader;
import org.springframework.stereotype.*;
import org.springframework.web.bind.annotation.*;
import javax.servlet.http.HttpServletRequest;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.helpers.XMLReaderFactory;
import org.xml.sax.XMLReader;
import java.io.*;
import org.xml.sax.InputSource;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.SAXParserFactory;
import javax.xml.parsers.SAXParser;
import org.xml.sax.helpers.DefaultHandler;
import org.apache.commons.digester3.Digester;
import org.jdom2.input.SAXBuilder;
/**
* @author: JoyChou (joychou@joychou.org)
* @date: 2017.12.22
* @desc: Java XXE 漏洞代码，修复代码在注释里
*/
@Controller
@RequestMapping("/xxe")
public class XXE {
@RequestMapping(value = "/xmlReader", method = RequestMethod.POST)
@ResponseBody
public String xxe_xmlReader(HttpServletRequest request) {
try {
String xml_con = getBody(request);
System.out.println(xml_con);
XMLReader xmlReader = XMLReaderFactory.createXMLReader();
xmlReader.parse( new InputSource(new StringReader(xml_con)) ); // parse xml
return "ok";
} catch (Exception e) {
System.out.println(e);
return "except";
}
}
@RequestMapping(value = "/xmlReader_fix", method = RequestMethod.POST)
@ResponseBody
public String xxe_xmlReader_fix(HttpServletRequest request) {
try {
String xml_con = getBody(request);
System.out.println(xml_con);
XMLReader xmlReader = XMLReaderFactory.createXMLReader();
// fix code start
xmlReader.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true);
xmlReader.setFeature("http://xml.org/sax/features/external-general-entities", false);
xmlReader.setFeature("http://xml.org/sax/features/external-parameter-entities", false);
//fix code end
xmlReader.parse( new InputSource(new StringReader(xml_con)) ); // parse xml
return "ok";
} catch (Exception e) {
System.out.println(e);
return "except";
}
}
@RequestMapping(value = "/SAXBuilder", method = RequestMethod.POST)
@ResponseBody
public String xxe_SAXBuilder(HttpServletRequest request) {
try {
String xml_con = getBody(request);
System.out.println(xml_con);
SAXBuilder builder = new SAXBuilder();
org.jdom2.Document document = builder.build( new InputSource(new StringReader(xml_con)) ); // cause xxe
return "ok";
} catch (Exception e) {
System.out.println(e);
return "except";
}
}
@RequestMapping(value = "/SAXBuilder_fix", method = RequestMethod.POST)
@ResponseBody
public String xxe_SAXBuilder_fix(HttpServletRequest request) {
try {
String xml_con = getBody(request);
System.out.println(xml_con);
SAXBuilder builder = new SAXBuilder();
builder.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true);
builder.setFeature("http://xml.org/sax/features/external-general-entities", false);
builder.setFeature("http://xml.org/sax/features/external-parameter-entities", false);
org.jdom2.Document document = builder.build( new InputSource(new StringReader(xml_con)) );
return "ok";
} catch (Exception e) {
System.out.println(e);
return "except";
}
}
@RequestMapping(value = "/SAXReader", method = RequestMethod.POST)
@ResponseBody
public String xxe_SAXReader(HttpServletRequest request) {
try {
String xml_con = getBody(request);
System.out.println(xml_con);
SAXReader reader = new SAXReader();
org.dom4j.Document document = reader.read( new InputSource(new StringReader(xml_con)) ); // cause xxe
return "ok";
} catch (Exception e) {
System.out.println(e);
return "except";
}
}
@RequestMapping(value = "/SAXReader_fix", method = RequestMethod.POST)
@ResponseBody
public String xxe_SAXReader_fix(HttpServletRequest request) {
try {
String xml_con = getBody(request);
System.out.println(xml_con);
SAXReader reader = new SAXReader();
reader.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true);
reader.setFeature("http://xml.org/sax/features/external-general-entities", false);
reader.setFeature("http://xml.org/sax/features/external-parameter-entities", false);
org.dom4j.Document document = reader.read( new InputSource(new StringReader(xml_con)) );
return "ok";
} catch (Exception e) {
System.out.println(e);
return "except";
}
}
@RequestMapping(value = "/SAXParser", method = RequestMethod.POST)
@ResponseBody
public String xxe_SAXParser(HttpServletRequest request) {
try {
String xml_con = getBody(request);
System.out.println(xml_con);
SAXParserFactory spf = SAXParserFactory.newInstance();
SAXParser parser = spf.newSAXParser();
parser.parse(new InputSource(new StringReader(xml_con)), new DefaultHandler()); // parse xml
return "test";
} catch (Exception e) {
System.out.println(e);
return "except";
}
}
@RequestMapping(value = "/SAXParser_fix", method = RequestMethod.POST)
@ResponseBody
public String xxe_SAXParser_fix(HttpServletRequest request) {
try {
String xml_con = getBody(request);
System.out.println(xml_con);
SAXParserFactory spf = SAXParserFactory.newInstance();
spf.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true);
spf.setFeature("http://xml.org/sax/features/external-general-entities", false);
spf.setFeature("http://xml.org/sax/features/external-parameter-entities", false);
SAXParser parser = spf.newSAXParser();
parser.parse(new InputSource(new StringReader(xml_con)), new DefaultHandler()); // parse xml
return "test";
} catch (Exception e) {
System.out.println(e);
return "except";
}
}
@RequestMapping(value = "/Digester", method = RequestMethod.POST)
@ResponseBody
public String xxe_Digester(HttpServletRequest request) {
try {
String xml_con = getBody(request);
System.out.println(xml_con);
Digester digester = new Digester();
digester.parse(new StringReader(xml_con)); // parse xml
return "test";
} catch (Exception e) {
System.out.println(e);
return "except";
}
}
@RequestMapping(value = "/Digester_fix", method = RequestMethod.POST)
@ResponseBody
public String xxe_Digester_fix(HttpServletRequest request) {
try {
String xml_con = getBody(request);
System.out.println(xml_con);
Digester digester = new Digester();
digester.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true);
digester.setFeature("http://xml.org/sax/features/external-general-entities", false);
digester.setFeature("http://xml.org/sax/features/external-parameter-entities", false);
digester.parse(new StringReader(xml_con)); // parse xml
return "test";
} catch (Exception e) {
System.out.println(e);
return "except";
}
}
// 有回显的XXE
@RequestMapping(value = "/DocumentBuilder_return", method = RequestMethod.POST)
@ResponseBody
public String xxeDocumentBuilderReturn(HttpServletRequest request) {
try {
String xml_con = getBody(request);
System.out.println(xml_con);
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
StringReader sr = new StringReader(xml_con);
InputSource is = new InputSource(sr);
Document document = db.parse(is); // parse xml
// 遍历xml节点name和value
StringBuffer buf = new StringBuffer();
NodeList rootNodeList = document.getChildNodes();
for (int i = 0; i < rootNodeList.getLength(); i++) {
Node rootNode = rootNodeList.item(i);
NodeList child = rootNode.getChildNodes();
for (int j = 0; j < child.getLength(); j++) {
Node node = child.item(j);
buf.append( node.getNodeName() + ": " + node.getTextContent() + "\n" );
}
}
sr.close();
System.out.println(buf.toString());
return buf.toString();
} catch (Exception e) {
System.out.println(e);
return "except";
}
}
@RequestMapping(value = "/DocumentBuilder", method = RequestMethod.POST)
@ResponseBody
public String DocumentBuilder(HttpServletRequest request) {
try {
String xml_con = getBody(request);
System.out.println(xml_con);
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
StringReader sr = new StringReader(xml_con);
InputSource is = new InputSource(sr);
Document document = db.parse(is); // parse xml
// 遍历xml节点name和value
StringBuffer result = new StringBuffer();
NodeList rootNodeList = document.getChildNodes();
for (int i = 0; i < rootNodeList.getLength(); i++) {
Node rootNode = rootNodeList.item(i);
NodeList child = rootNode.getChildNodes();
for (int j = 0; j < child.getLength(); j++) {
Node node = child.item(j);
// 正常解析XML，需要判断是否是ELEMENT_NODE类型。否则会出现多余的的节点。
if(child.item(j).getNodeType() == Node.ELEMENT_NODE) {
result.append( node.getNodeName() + ": " + node.getFirstChild().getNodeValue() + "\n" );
}
}
}
sr.close();
System.out.println(result.toString());
return result.toString();
} catch (Exception e) {
System.out.println(e);
return "except";
}
}
@RequestMapping(value = "/DocumentBuilder_fix", method = RequestMethod.POST)
@ResponseBody
public String xxe_DocumentBuilder_fix(HttpServletRequest request) {
try {
String xml_con = getBody(request);
System.out.println(xml_con);
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
dbf.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true);
dbf.setFeature("http://xml.org/sax/features/external-general-entities", false);
dbf.setFeature("http://xml.org/sax/features/external-parameter-entities", false);
DocumentBuilder db = dbf.newDocumentBuilder();
StringReader sr = new StringReader(xml_con);
InputSource is = new InputSource(sr);
Document document = db.parse(is); // parse xml
sr.close();
return "test";
} catch (Exception e) {
System.out.println(e);
return "except";
}
}
@RequestMapping(value = "/DocumentBuilder_xinclude", method = RequestMethod.POST)
@ResponseBody
public String xxe_xinclude_DocumentBuilder(HttpServletRequest request) {
try {
String xml_con = getBody(request);
System.out.println(xml_con);
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
dbf.setXIncludeAware(true); // 支持XInclude
dbf.setNamespaceAware(true); // 支持XInclude
DocumentBuilder db = dbf.newDocumentBuilder();
StringReader sr = new StringReader(xml_con);
InputSource is = new InputSource(sr);
Document document = db.parse(is); // parse xml
NodeList rootNodeList = document.getChildNodes();
for (int i = 0; i < rootNodeList.getLength(); i++) {
Node rootNode = rootNodeList.item(i);
NodeList xxe = rootNode.getChildNodes();
for (int j = 0; j < xxe.getLength(); j++) {
Node xxeNode = xxe.item(j);
// 测试不能blind xxe，所以强行加了一个回显
System.out.println("xxeNode: " + xxeNode.getNodeValue());
}
}
sr.close();
return "test";
} catch (Exception e) {
System.out.println(e);
return "except";
}
}
@RequestMapping(value = "/DocumentBuilder_xinclude_fix", method = RequestMethod.POST)
@ResponseBody
public String xxe_xinclude_DocumentBuilder_fix(HttpServletRequest request) {
try {
String xml_con = getBody(request);
System.out.println(xml_con);
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
dbf.setXIncludeAware(true); // 支持XInclude
dbf.setNamespaceAware(true); // 支持XInclude
dbf.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true);
dbf.setFeature("http://xml.org/sax/features/external-general-entities", false);
dbf.setFeature("http://xml.org/sax/features/external-parameter-entities", false);
DocumentBuilder db = dbf.newDocumentBuilder();
StringReader sr = new StringReader(xml_con);
InputSource is = new InputSource(sr);
Document document = db.parse(is); // parse xml
NodeList rootNodeList = document.getChildNodes();
for (int i = 0; i < rootNodeList.getLength(); i++) {
Node rootNode = rootNodeList.item(i);
NodeList xxe = rootNode.getChildNodes();
for (int j = 0; j < xxe.getLength(); j++) {
Node xxeNode = xxe.item(j);
// 测试不能blind xxe，所以强行加了一个回显
System.out.println("xxeNode: " + xxeNode.getNodeValue());
}
}
sr.close();
return "test";
} catch (Exception e) {
System.out.println(e);
return "except";
}
}
// 获取body数据
private String getBody(HttpServletRequest request) throws IOException {
InputStream in = request.getInputStream();
BufferedReader br = new BufferedReader(new InputStreamReader(in));
StringBuffer sb = new StringBuffer("");
String temp;
while ((temp = br.readLine()) != null) {
sb.append(temp);
}
if (in != null) {
in.close();
}
if (br != null) {
br.close();
}
return sb.toString();
}
}