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🎨 #1427 fix XmlUtils.xml2Map() method which was vulnerable to XXE vulnerability

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Binary Wang
2020-03-28 22:16:53 +08:00
parent 1f49ac0781
commit a9cd7d2c2f
2 changed files with 29 additions and 13 deletions
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27
weixin-java-common/src/main/java/me/chanjar/weixin/common/util/XmlUtils.java
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@ -1,21 +1,21 @@
package me.chanjar.weixin.common.util;
import java.io.StringReader;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.common.collect.Sets;
import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.Element;
import org.dom4j.Node;
import org.dom4j.io.SAXReader;
import org.dom4j.tree.DefaultText;
import org.xml.sax.SAXException;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.common.collect.Sets;
import java.io.StringReader;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
/**
* <pre>
@ -31,13 +31,18 @@ public class XmlUtils {
Map<String, Object> map = new HashMap<>(16);
try {
SAXReader saxReader = new SAXReader();
saxReader.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true);
saxReader.setFeature("http://javax.xml.XMLConstants/feature/secure-processing", true);
saxReader.setFeature("http://xml.org/sax/features/external-parameter-entities", false);
saxReader.setFeature("http://xml.org/sax/features/external-general-entities", false);
saxReader.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", false);
Document doc = saxReader.read(new StringReader(xmlString));
Element root = doc.getRootElement();
List<Element> elements = root.elements();
for (Element element : elements) {
map.put(element.getName(), element2MapOrString(element));
map.put(element.getName(), element2MapOrString(element));
}
} catch (DocumentException e) {
} catch (DocumentException | SAXException e) {
throw new RuntimeException(e);
}