From 2780a77600e6428b730e3a5197b7c5baf1c4cca0 Mon Sep 17 00:00:00 2001
From: melloware <mellowaredev@gmail.com>
Date: Wed, 22 May 2019 20:45:17 -0400
Subject: [PATCH] BEANUTILS-520: Mitigate CVE-2014-0114 by enabling
SuppressPropertiesBeanIntrospector.SUPPRESS_CLASS by default.
---
.../commons/beanutils2/PropertyUtilsBean.java | 1 +
.../BeanIntrospectionDataTestCase.java | 1 +
.../beanutils2/bugs/Jira157TestCase.java | 7 +++
.../beanutils2/bugs/Jira520TestCase.java | 55 +++++++++++++++++++
4 files changed, 64 insertions(+)
create mode 100644 src/test/java/org/apache/commons/beanutils2/bugs/Jira520TestCase.java
diff --git a/src/main/java/org/apache/commons/beanutils2/PropertyUtilsBean.java b/src/main/java/org/apache/commons/beanutils2/PropertyUtilsBean.java
index 333675f4d..dbc3c3670 100644
--- a/src/main/java/org/apache/commons/beanutils2/PropertyUtilsBean.java
+++ b/src/main/java/org/apache/commons/beanutils2/PropertyUtilsBean.java
@@ -185,6 +185,7 @@ public void setResolver(final Resolver resolver) {
public final void resetBeanIntrospectors() {
introspectors.clear();
introspectors.add(DefaultBeanIntrospector.INSTANCE);
+ introspectors.add(SuppressPropertiesBeanIntrospector.SUPPRESS_CLASS);
}
/**
diff --git a/src/test/java/org/apache/commons/beanutils2/BeanIntrospectionDataTestCase.java b/src/test/java/org/apache/commons/beanutils2/BeanIntrospectionDataTestCase.java
index 73ccf5e48..e3746f54a 100644
--- a/src/test/java/org/apache/commons/beanutils2/BeanIntrospectionDataTestCase.java
+++ b/src/test/java/org/apache/commons/beanutils2/BeanIntrospectionDataTestCase.java
@@ -41,6 +41,7 @@ public class BeanIntrospectionDataTestCase extends TestCase {
*/
private static PropertyDescriptor[] fetchDescriptors() {
final PropertyUtilsBean pub = new PropertyUtilsBean();
+ pub.removeBeanIntrospector(SuppressPropertiesBeanIntrospector.SUPPRESS_CLASS);
pub.addBeanIntrospector(new FluentPropertyBeanIntrospector());
return pub.getPropertyDescriptors(BEAN_CLASS);
}
diff --git a/src/test/java/org/apache/commons/beanutils2/bugs/Jira157TestCase.java b/src/test/java/org/apache/commons/beanutils2/bugs/Jira157TestCase.java
index 286c573d4..3d9ce1f39 100644
--- a/src/test/java/org/apache/commons/beanutils2/bugs/Jira157TestCase.java
+++ b/src/test/java/org/apache/commons/beanutils2/bugs/Jira157TestCase.java
@@ -20,6 +20,9 @@
import java.util.Map;
import org.apache.commons.beanutils2.BeanUtils;
+import org.apache.commons.beanutils2.BeanUtilsBean;
+import org.apache.commons.beanutils2.PropertyUtilsBean;
+import org.apache.commons.beanutils2.SuppressPropertiesBeanIntrospector;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
@@ -73,6 +76,10 @@ public static Test suite() {
@Override
protected void setUp() throws Exception {
super.setUp();
+
+ BeanUtilsBean custom = new BeanUtilsBean();
+ custom.getPropertyUtils().removeBeanIntrospector(SuppressPropertiesBeanIntrospector.SUPPRESS_CLASS);
+ BeanUtilsBean.setInstance(custom);
}
/**
diff --git a/src/test/java/org/apache/commons/beanutils2/bugs/Jira520TestCase.java b/src/test/java/org/apache/commons/beanutils2/bugs/Jira520TestCase.java
new file mode 100644
index 000000000..c9dd2a058
--- /dev/null
+++ b/src/test/java/org/apache/commons/beanutils2/bugs/Jira520TestCase.java
@@ -0,0 +1,55 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.commons.beanutils2.bugs;
+
+import org.apache.commons.beanutils2.AlphaBean;
+import org.apache.commons.beanutils2.BeanUtilsBean;
+import org.apache.commons.beanutils2.SuppressPropertiesBeanIntrospector;
+
+import junit.framework.TestCase;
+
+/**
+ * Fix CVE: https://nvd.nist.gov/vuln/detail/CVE-2014-0114
+ *
+ * @see <a href="https://issues.apache.org/jira/browse/BEANUTILS-520">https://issues.apache.org/jira/browse/BEANUTILS-520</a>
+ */
+public class Jira520TestCase extends TestCase {
+ /**
+ * By default opt-in to security that does not allow access to "class".
+ */
+ public void testSuppressClassPropertyByDefault() throws Exception {
+ final BeanUtilsBean bub = new BeanUtilsBean();
+ final AlphaBean bean = new AlphaBean();
+ try {
+ bub.getProperty(bean, "class");
+ fail("Could access class property!");
+ } catch (final NoSuchMethodException ex) {
+ // ok
+ }
+ }
+
+ /**
+ * Allow opt-out to make your app less secure but allow access to "class".
+ */
+ public void testAllowAccessToClassProperty() throws Exception {
+ final BeanUtilsBean bub = new BeanUtilsBean();
+ bub.getPropertyUtils().removeBeanIntrospector(SuppressPropertiesBeanIntrospector.SUPPRESS_CLASS);
+ final AlphaBean bean = new AlphaBean();
+ String result = bub.getProperty(bean, "class");
+ assertEquals("Class property should have been accessed", "class org.apache.commons.beanutils2.AlphaBean", result);
+ }
+}