CLOUDSTACK-8566: Strips the username and password credentials from host details

... map returned by the following API calls by filtering these fields from the
details attribute in the HostResponse class:

  * listHosts
  * addHost
  * cancelHostMaintenance
  * listHosts
  * prepareHostForMaintenance
  * reconnectHost
  * updateHost

This fix addresses CVE 2015-3251.

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
(cherry picked from commit 3a48171bd8a70c6012afce32c7636afffc1d2f7d)
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>

api/src/org/apache/cloudstack/api/response/HostResponse.java

@@ -16,20 +16,19 @@
 // under the License.
 package org.apache.cloudstack.api.response;
 
-import java.util.Date;
-import java.util.List;
-import java.util.Map;
-
-import com.google.gson.annotations.SerializedName;
-
-import org.apache.cloudstack.api.ApiConstants;
-import org.apache.cloudstack.api.BaseResponse;
-import org.apache.cloudstack.api.EntityReference;
-
 import com.cloud.host.Host;
 import com.cloud.host.Status;
 import com.cloud.hypervisor.Hypervisor.HypervisorType;
 import com.cloud.serializer.Param;
+import com.google.gson.annotations.SerializedName;
+import org.apache.cloudstack.api.ApiConstants;
+import org.apache.cloudstack.api.BaseResponse;
+import org.apache.cloudstack.api.EntityReference;
+
+import java.util.Date;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
 
 @EntityReference(value = Host.class)
 public class HostResponse extends BaseResponse {
@@ -217,6 +216,12 @@ public class HostResponse extends BaseResponse {
     @Param(description = "Host details in key/value pairs.", since = "4.5")
     private Map details;
 
+
+    // Default visibility to support accessing the details from unit tests
+    Map getDetails() {
+        return details;
+    }
+
     @Override
     public String getObjectId() {
         return this.getId();
@@ -423,7 +428,21 @@ public class HostResponse extends BaseResponse {
     }
 
     public void setDetails(Map details) {
-        this.details = details;
+
+        if (details == null) {
+            return;
+        }
+
+        final Map detailsCopy = new HashMap(details);
+
+        // Fix for CVE ID 2015-3251
+        // Remove sensitive host credential information from
+        // the details to prevent leakage through API calls
+        detailsCopy.remove("username");
+        detailsCopy.remove("password");
+
+        this.details = detailsCopy;
+
     }
 
 }

api/test/org/apache/cloudstack/api/response/HostResponseTest.java

@@ -0,0 +1,80 @@
+// 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.cloudstack.api.response;
+
+import junit.framework.TestCase;
+import org.apache.commons.collections.map.HashedMap;
+import org.junit.Test;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public final class HostResponseTest extends TestCase {
+
+    private static final String VALID_KEY = "validkey";
+    private static final String VALID_VALUE = "validvalue";
+
+    @Test
+    public void testSetDetailsNull() {
+
+        final HostResponse hostResponse = new HostResponse();
+        hostResponse.setDetails(null);
+
+        assertEquals(null, hostResponse.getDetails());
+
+    }
+
+    @Test
+    public void testSetDetailsWithRootCredentials() {
+
+        final HostResponse hostResponse = new HostResponse();
+        final Map details = new HashMap<>();
+
+        details.put(VALID_KEY, VALID_VALUE);
+        details.put("username", "test");
+        details.put("password", "password");
+
+        final Map expectedDetails = new HashedMap();
+        expectedDetails.put(VALID_KEY, VALID_VALUE);
+
+        hostResponse.setDetails(details);
+        final Map actualDetails = hostResponse.getDetails();
+
+        assertTrue(details != actualDetails);
+        assertEquals(expectedDetails, actualDetails);
+
+    }
+
+    @Test
+    public void testSetDetailsWithoutRootCredentials() {
+
+        final HostResponse hostResponse = new HostResponse();
+        final Map details = new HashMap<>();
+
+        details.put(VALID_KEY, VALID_VALUE);
+
+        final Map expectedDetails = new HashedMap();
+        expectedDetails.put(VALID_KEY, VALID_VALUE);
+
+        hostResponse.setDetails(details);
+        final Map actualDetails = hostResponse.getDetails();
+
+        assertTrue(details != actualDetails);
+        assertEquals(expectedDetails, actualDetails);
+
+    }
+}