BUG-2511 Fix possible XXE vulnerability in restconf

[controller.git] / opendaylight / md-sal / sal-rest-connector / src / main / java / org / opendaylight / controller / sal / rest / impl / XmlNormalizedNodeBodyReader.java

diff --git a/opendaylight/md-sal/sal-rest-connector/src/main/java/org/opendaylight/controller/sal/rest/impl/XmlNormalizedNodeBodyReader.java b/opendaylight/md-sal/sal-rest-connector/src/main/java/org/opendaylight/controller/sal/rest/impl/XmlNormalizedNodeBodyReader.java
index 062a4488f369075a70c4322f4d75b5a1ce24841b..ad7122058c880d3ab270d40ae56ef6775ccd3c2f 100644 (file)
--- a/opendaylight/md-sal/sal-rest-connector/src/main/java/org/opendaylight/controller/sal/rest/impl/XmlNormalizedNodeBodyReader.java
+++ b/opendaylight/md-sal/sal-rest-connector/src/main/java/org/opendaylight/controller/sal/rest/impl/XmlNormalizedNodeBodyReader.java
@@ -52,6 +52,15 @@ public class XmlNormalizedNodeBodyReader extends AbstractIdentifierAwareJaxRsPro
 
     static {
         DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
+        try {
+            factory.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true);
+            factory.setFeature("http://xml.org/sax/features/external-general-entities", false);
+            factory.setFeature("http://xml.org/sax/features/external-parameter-entities", false);
+            factory.setXIncludeAware(false);
+            factory.setExpandEntityReferences(false);
+        } catch (ParserConfigurationException e) {
+            throw new ExceptionInInitializerError(e);
+        }
         factory.setNamespaceAware(true);
         factory.setCoalescing(true);
         factory.setIgnoringElementContentWhitespace(true);