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XXE.java
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package org.joychou.controller;
import org.dom4j.DocumentHelper;
import org.dom4j.io.SAXReader;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.data.web.ProjectedPayload;
import org.springframework.http.HttpEntity;
import org.springframework.http.ResponseEntity;
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;
import org.joychou.util.WebUtils;
import org.xmlbeam.annotation.XBRead;
/**
* Java xxe vuln and security code.
*
* @author JoyChou @2017-12-22
*/
@RestController
@RequestMapping("/xxe")
public class XXE {
private static final Logger logger = LoggerFactory.getLogger(XXE.class);
private static final String EXCEPT = "xxe except";
@PostMapping("/xmlReader/vuln")
public String xmlReaderVuln(HttpServletRequest request) {
try {
String body = WebUtils.getRequestBody(request);
logger.info(body);
XMLReader xmlReader = XMLReaderFactory.createXMLReader();
xmlReader.parse(new InputSource(new StringReader(body))); // parse xml
return "xmlReader xxe vuln code";
} catch (Exception e) {
logger.error(e.toString());
return EXCEPT;
}
}
@RequestMapping(value = "/xmlReader/sec", method = RequestMethod.POST)
public String xmlReaderSec(HttpServletRequest request) {
try {
String body = WebUtils.getRequestBody(request);
logger.info(body);
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(body))); // parse xml
} catch (Exception e) {
logger.error(e.toString());
return EXCEPT;
}
return "xmlReader xxe security code";
}
@RequestMapping(value = "/SAXBuilder/vuln", method = RequestMethod.POST)
public String SAXBuilderVuln(HttpServletRequest request) {
try {
String body = WebUtils.getRequestBody(request);
logger.info(body);
SAXBuilder builder = new SAXBuilder();
// org.jdom2.Document document
builder.build(new InputSource(new StringReader(body))); // cause xxe
return "SAXBuilder xxe vuln code";
} catch (Exception e) {
logger.error(e.toString());
return EXCEPT;
}
}
@RequestMapping(value = "/SAXBuilder/sec", method = RequestMethod.POST)
public String SAXBuilderSec(HttpServletRequest request) {
try {
String body = WebUtils.getRequestBody(request);
logger.info(body);
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(body)));
} catch (Exception e) {
logger.error(e.toString());
return EXCEPT;
}
return "SAXBuilder xxe security code";
}
@RequestMapping(value = "/SAXReader/vuln", method = RequestMethod.POST)
public String SAXReaderVuln(HttpServletRequest request) {
try {
String body = WebUtils.getRequestBody(request);
logger.info(body);
SAXReader reader = new SAXReader();
// org.dom4j.Document document
reader.read(new InputSource(new StringReader(body))); // cause xxe
} catch (Exception e) {
logger.error(e.toString());
return EXCEPT;
}
return "SAXReader xxe vuln code";
}
@RequestMapping(value = "/SAXReader/sec", method = RequestMethod.POST)
public String SAXReaderSec(HttpServletRequest request) {
try {
String body = WebUtils.getRequestBody(request);
logger.info(body);
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(body)));
} catch (Exception e) {
logger.error(e.toString());
return EXCEPT;
}
return "SAXReader xxe security code";
}
@RequestMapping(value = "/SAXParser/vuln", method = RequestMethod.POST)
public String SAXParserVuln(HttpServletRequest request) {
try {
String body = WebUtils.getRequestBody(request);
logger.info(body);
SAXParserFactory spf = SAXParserFactory.newInstance();
SAXParser parser = spf.newSAXParser();
parser.parse(new InputSource(new StringReader(body)), new DefaultHandler()); // parse xml
return "SAXParser xxe vuln code";
} catch (Exception e) {
logger.error(e.toString());
return EXCEPT;
}
}
@RequestMapping(value = "/SAXParser/sec", method = RequestMethod.POST)
public String SAXParserSec(HttpServletRequest request) {
try {
String body = WebUtils.getRequestBody(request);
logger.info(body);
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(body)), new DefaultHandler()); // parse xml
} catch (Exception e) {
logger.error(e.toString());
return EXCEPT;
}
return "SAXParser xxe security code";
}
@RequestMapping(value = "/Digester/vuln", method = RequestMethod.POST)
public String DigesterVuln(HttpServletRequest request) {
try {
String body = WebUtils.getRequestBody(request);
logger.info(body);
Digester digester = new Digester();
digester.parse(new StringReader(body)); // parse xml
} catch (Exception e) {
logger.error(e.toString());
return EXCEPT;
}
return "Digester xxe vuln code";
}
@RequestMapping(value = "/Digester/sec", method = RequestMethod.POST)
public String DigesterSec(HttpServletRequest request) {
try {
String body = WebUtils.getRequestBody(request);
logger.info(body);
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(body)); // parse xml
return "Digester xxe security code";
} catch (Exception e) {
logger.error(e.toString());
return EXCEPT;
}
}
/**
* Use request.getInputStream to support UTF16 encoding.
*/
@RequestMapping(value = "/DocumentBuilder/vuln", method = RequestMethod.POST)
public String DocumentBuilderVuln(HttpServletRequest request) {
try {
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
InputSource is = new InputSource(request.getInputStream());
Document document = db.parse(is); // parse xml
// 遍历xml节点name和value
StringBuilder buf = new StringBuilder();
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(String.format("%s: %s\n", node.getNodeName(), node.getTextContent()));
}
}
return buf.toString();
} catch (Exception e) {
e.printStackTrace();
logger.error(e.toString());
return e.toString();
}
}
@RequestMapping(value = "/DocumentBuilder/Sec", method = RequestMethod.POST)
public String DocumentBuilderSec(HttpServletRequest request) {
try {
String body = WebUtils.getRequestBody(request);
logger.info(body);
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(body);
InputSource is = new InputSource(sr);
db.parse(is); // parse xml
sr.close();
} catch (Exception e) {
logger.error(e.toString());
return EXCEPT;
}
return "DocumentBuilder xxe security code";
}
@RequestMapping(value = "/DocumentBuilder/xinclude/vuln", method = RequestMethod.POST)
public String DocumentBuilderXincludeVuln(HttpServletRequest request) {
try {
String body = WebUtils.getRequestBody(request);
logger.info(body);
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
dbf.setXIncludeAware(true); // 支持XInclude
dbf.setNamespaceAware(true); // 支持XInclude
DocumentBuilder db = dbf.newDocumentBuilder();
StringReader sr = new StringReader(body);
InputSource is = new InputSource(sr);
Document document = db.parse(is); // parse xml
NodeList rootNodeList = document.getChildNodes();
response(rootNodeList);
sr.close();
return "DocumentBuilder xinclude xxe vuln code";
} catch (Exception e) {
logger.error(e.toString());
return EXCEPT;
}
}
@RequestMapping(value = "/DocumentBuilder/xinclude/sec", method = RequestMethod.POST)
public String DocumentBuilderXincludeSec(HttpServletRequest request) {
try {
String body = WebUtils.getRequestBody(request);
logger.info(body);
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(body);
InputSource is = new InputSource(sr);
Document document = db.parse(is); // parse xml
NodeList rootNodeList = document.getChildNodes();
response(rootNodeList);
sr.close();
} catch (Exception e) {
logger.error(e.toString());
return EXCEPT;
}
return "DocumentBuilder xinclude xxe vuln code";
}
@PostMapping("/XMLReader/vuln")
public String XMLReaderVuln(HttpServletRequest request) {
try {
String body = WebUtils.getRequestBody(request);
logger.info(body);
SAXParserFactory spf = SAXParserFactory.newInstance();
SAXParser saxParser = spf.newSAXParser();
XMLReader xmlReader = saxParser.getXMLReader();
xmlReader.parse(new InputSource(new StringReader(body)));
} catch (Exception e) {
logger.error(e.toString());
return EXCEPT;
}
return "XMLReader xxe vuln code";
}
@PostMapping("/XMLReader/sec")
public String XMLReaderSec(HttpServletRequest request) {
try {
String body = WebUtils.getRequestBody(request);
logger.info(body);
SAXParserFactory spf = SAXParserFactory.newInstance();
SAXParser saxParser = spf.newSAXParser();
XMLReader xmlReader = saxParser.getXMLReader();
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);
xmlReader.parse(new InputSource(new StringReader(body)));
} catch (Exception e) {
logger.error(e.toString());
return EXCEPT;
}
return "XMLReader xxe security code";
}
/**
* 修复该漏洞只需升级dom4j到2.1.1及以上,该版本及以上禁用了ENTITY;
* 不带ENTITY的PoC不能利用,所以禁用ENTITY即可完成修复。
*/
@PostMapping("/DocumentHelper/vuln")
public String DocumentHelper(HttpServletRequest req) {
try {
String body = WebUtils.getRequestBody(req);
DocumentHelper.parseText(body); // parse xml
} catch (Exception e) {
logger.error(e.toString());
return EXCEPT;
}
return "DocumentHelper xxe vuln code";
}
private static void response(NodeList rootNodeList){
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
logger.info("xxeNode: " + xxeNode.getNodeValue());
}
}
}
/**
* Receiving POST requests supporting both JSON and XML.
* CVE-2018-1259
*/
@PostMapping(value = "/xmlbeam/vuln")
HttpEntity<String> post(@RequestBody UserPayload user) {
try {
logger.info(user.toString());
return ResponseEntity.ok(String.format("hello, %s!", user.getUserName()));
}catch (Exception e){
e.printStackTrace();
return ResponseEntity.ok("error");
}
}
/**
* The projection interface using XPath and JSON Path expression to selectively pick elements from the payload.
*/
@ProjectedPayload
public interface UserPayload {
@XBRead("//userName")
String getUserName();
}
public static void main(String[] args) {
}
}