You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@hbase.apache.org by el...@apache.org on 2017/01/05 01:03:44 UTC

[1/5] hbase git commit: HBASE-17409 Limit jsonp callback name to prevent xss

Repository: hbase
Updated Branches:
  refs/heads/branch-1 36f16bbe1 -> 4dcb07f99
  refs/heads/branch-1.1 e32f8ac42 -> 63d8186d4
  refs/heads/branch-1.2 28ec26035 -> 601518abb
  refs/heads/branch-1.3 e359c76e8 -> 1829cd541
  refs/heads/master 63bd8be57 -> 20a7ae286


HBASE-17409 Limit jsonp callback name to prevent xss


Project: http://git-wip-us.apache.org/repos/asf/hbase/repo
Commit: http://git-wip-us.apache.org/repos/asf/hbase/commit/20a7ae28
Tree: http://git-wip-us.apache.org/repos/asf/hbase/tree/20a7ae28
Diff: http://git-wip-us.apache.org/repos/asf/hbase/diff/20a7ae28

Branch: refs/heads/master
Commit: 20a7ae28657c41027486f7d2c8e1b260b692f418
Parents: 63bd8be
Author: Josh Elser <el...@apache.org>
Authored: Tue Jan 3 17:46:45 2017 -0500
Committer: Josh Elser <el...@apache.org>
Committed: Wed Jan 4 17:05:07 2017 -0500

----------------------------------------------------------------------
 .../hadoop/hbase/http/jmx/JMXJsonServlet.java   | 29 ++++++++++++++++----
 .../hbase/http/jmx/TestJMXJsonServlet.java      | 25 +++++++++++++++++
 2 files changed, 48 insertions(+), 6 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hbase/blob/20a7ae28/hbase-server/src/main/java/org/apache/hadoop/hbase/http/jmx/JMXJsonServlet.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/http/jmx/JMXJsonServlet.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/http/jmx/JMXJsonServlet.java
index 45c2c15..3abad3a 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/http/jmx/JMXJsonServlet.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/http/jmx/JMXJsonServlet.java
@@ -149,9 +149,7 @@ public class JMXJsonServlet extends HttpServlet {
    *          The servlet response we are creating
    */
   @Override
-  @edu.umd.cs.findbugs.annotations.SuppressWarnings(value="XSS_REQUEST_PARAMETER_TO_SERVLET_WRITER",
-    justification="TODO: See HBASE-15122")
-  public void doGet(HttpServletRequest request, HttpServletResponse response) {
+  public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
     try {
       if (!HttpServer.isInstrumentationAccessAllowed(getServletContext(), request, response)) {
         return;
@@ -160,11 +158,11 @@ public class JMXJsonServlet extends HttpServlet {
       PrintWriter writer = null;
       JSONBean.Writer beanWriter = null;
       try {
+        jsonpcb = checkCallbackName(request.getParameter(CALLBACK_PARAM));
         writer = response.getWriter();
         beanWriter = this.jsonBeanWriter.open(writer);
  
         // "callback" parameter implies JSONP outpout
-        jsonpcb = request.getParameter(CALLBACK_PARAM);
         if (jsonpcb != null) {
           response.setContentType("application/javascript; charset=utf8");
           writer.write(jsonpcb + "(");
@@ -214,10 +212,29 @@ public class JMXJsonServlet extends HttpServlet {
       }
     } catch (IOException e) {
       LOG.error("Caught an exception while processing JMX request", e);
-      response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
+      response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
     } catch (MalformedObjectNameException e) {
       LOG.error("Caught an exception while processing JMX request", e);
-      response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
+      response.sendError(HttpServletResponse.SC_BAD_REQUEST);
     }
   }
+
+  /**
+   * Verifies that the callback property, if provided, is purely alphanumeric.
+   * This prevents a malicious callback name (that is javascript code) from being
+   * returned by the UI to an unsuspecting user.
+   *
+   * @param callbackName The callback name, can be null.
+   * @return The callback name
+   * @throws IOException If the name is disallowed.
+   */
+  private String checkCallbackName(String callbackName) throws IOException {
+    if (null == callbackName) {
+      return null;
+    }
+    if (callbackName.matches("[A-Za-z0-9_]+")) {
+      return callbackName;
+    }
+    throw new IOException("'callback' must be alphanumeric");
+  }
 }

http://git-wip-us.apache.org/repos/asf/hbase/blob/20a7ae28/hbase-server/src/test/java/org/apache/hadoop/hbase/http/jmx/TestJMXJsonServlet.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/http/jmx/TestJMXJsonServlet.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/http/jmx/TestJMXJsonServlet.java
index 031ddce..d7e68d5 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/http/jmx/TestJMXJsonServlet.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/http/jmx/TestJMXJsonServlet.java
@@ -17,10 +17,14 @@
 
 package org.apache.hadoop.hbase.http.jmx;
 
+import java.net.HttpURLConnection;
 import java.net.URL;
+import java.net.URLEncoder;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
+import javax.servlet.http.HttpServletResponse;
+
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.hbase.testclassification.MiscTests;
@@ -39,6 +43,9 @@ public class TestJMXJsonServlet extends HttpServerFunctionalTest {
   private static URL baseUrl;
 
   @BeforeClass public static void setup() throws Exception {
+    // Eclipse doesn't pick this up correctly from the plugin
+    // configuration in the pom.
+    System.setProperty(HttpServerFunctionalTest.TEST_BUILD_WEBAPPS, "target/test-classes/webapps");
     server = createTestServer();
     server.start();
     baseUrl = getServerURL(server);
@@ -106,4 +113,22 @@ public class TestJMXJsonServlet extends HttpServerFunctionalTest {
     assertReFind("\\}\\);$", result);
 
   }
+
+  @Test
+  public void testDisallowedJSONPCallback() throws Exception {
+    String callback = "function(){alert('bigproblems!')};foo";
+    URL url = new URL(
+        baseUrl, "/jmx?qry=java.lang:type=Memory&callback="+URLEncoder.encode(callback, "UTF-8"));
+    HttpURLConnection cnxn = (HttpURLConnection) url.openConnection();
+    assertEquals(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, cnxn.getResponseCode());
+  }
+
+  @Test
+  public void testUnderscoresInJSONPCallback() throws Exception {
+    String callback = "my_function";
+    URL url = new URL(
+        baseUrl, "/jmx?qry=java.lang:type=Memory&callback="+URLEncoder.encode(callback, "UTF-8"));
+    HttpURLConnection cnxn = (HttpURLConnection) url.openConnection();
+    assertEquals(HttpServletResponse.SC_OK, cnxn.getResponseCode());
+  }
 }


[2/5] hbase git commit: HBASE-17409 Limit jsonp callback name to prevent xss

Posted by el...@apache.org.
HBASE-17409 Limit jsonp callback name to prevent xss


Project: http://git-wip-us.apache.org/repos/asf/hbase/repo
Commit: http://git-wip-us.apache.org/repos/asf/hbase/commit/4dcb07f9
Tree: http://git-wip-us.apache.org/repos/asf/hbase/tree/4dcb07f9
Diff: http://git-wip-us.apache.org/repos/asf/hbase/diff/4dcb07f9

Branch: refs/heads/branch-1
Commit: 4dcb07f9960185a72471a1a806cdd23610314a3b
Parents: 36f16bb
Author: Josh Elser <el...@apache.org>
Authored: Tue Jan 3 17:46:45 2017 -0500
Committer: Josh Elser <el...@apache.org>
Committed: Wed Jan 4 19:36:24 2017 -0500

----------------------------------------------------------------------
 .../hadoop/hbase/http/jmx/JMXJsonServlet.java   | 29 ++++++++++++++++----
 .../hbase/http/jmx/TestJMXJsonServlet.java      | 25 +++++++++++++++++
 2 files changed, 48 insertions(+), 6 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hbase/blob/4dcb07f9/hbase-server/src/main/java/org/apache/hadoop/hbase/http/jmx/JMXJsonServlet.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/http/jmx/JMXJsonServlet.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/http/jmx/JMXJsonServlet.java
index 8ba26dd..0d7d99a 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/http/jmx/JMXJsonServlet.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/http/jmx/JMXJsonServlet.java
@@ -152,9 +152,7 @@ public class JMXJsonServlet extends HttpServlet {
    *          The servlet response we are creating
    */
   @Override
-  @edu.umd.cs.findbugs.annotations.SuppressWarnings(value="XSS_REQUEST_PARAMETER_TO_SERVLET_WRITER",
-    justification="TODO: See HBASE-15122")
-  public void doGet(HttpServletRequest request, HttpServletResponse response) {
+  public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
     try {
       if (!HttpServer.isInstrumentationAccessAllowed(getServletContext(), request, response)) {
         return;
@@ -163,10 +161,10 @@ public class JMXJsonServlet extends HttpServlet {
       PrintWriter writer = null;
       JSONBean.Writer beanWriter = null;
       try {
+        jsonpcb = checkCallbackName(request.getParameter(CALLBACK_PARAM));
         writer = response.getWriter();
         beanWriter = this.jsonBeanWriter.open(writer);
         // "callback" parameter implies JSONP outpout
-        jsonpcb = request.getParameter(CALLBACK_PARAM);
         if (jsonpcb != null) {
           response.setContentType("application/javascript; charset=utf8");
           writer.write(jsonpcb + "(");
@@ -216,10 +214,29 @@ public class JMXJsonServlet extends HttpServlet {
       }
     } catch (IOException e) {
       LOG.error("Caught an exception while processing JMX request", e);
-      response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
+      response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
     } catch (MalformedObjectNameException e) {
       LOG.error("Caught an exception while processing JMX request", e);
-      response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
+      response.sendError(HttpServletResponse.SC_BAD_REQUEST);
     }
   }
+
+  /**
+   * Verifies that the callback property, if provided, is purely alphanumeric.
+   * This prevents a malicious callback name (that is javascript code) from being
+   * returned by the UI to an unsuspecting user.
+   *
+   * @param callbackName The callback name, can be null.
+   * @return The callback name
+   * @throws IOException If the name is disallowed.
+   */
+  private String checkCallbackName(String callbackName) throws IOException {
+    if (null == callbackName) {
+      return null;
+    }
+    if (callbackName.matches("[A-Za-z0-9_]+")) {
+      return callbackName;
+    }
+    throw new IOException("'callback' must be alphanumeric");
+  }
 }

http://git-wip-us.apache.org/repos/asf/hbase/blob/4dcb07f9/hbase-server/src/test/java/org/apache/hadoop/hbase/http/jmx/TestJMXJsonServlet.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/http/jmx/TestJMXJsonServlet.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/http/jmx/TestJMXJsonServlet.java
index dd345fb..5e02a78 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/http/jmx/TestJMXJsonServlet.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/http/jmx/TestJMXJsonServlet.java
@@ -17,10 +17,14 @@
 
 package org.apache.hadoop.hbase.http.jmx;
 
+import java.net.HttpURLConnection;
 import java.net.URL;
+import java.net.URLEncoder;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
+import javax.servlet.http.HttpServletResponse;
+
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.hbase.testclassification.SmallTests;
@@ -38,6 +42,9 @@ public class TestJMXJsonServlet extends HttpServerFunctionalTest {
   private static URL baseUrl;
 
   @BeforeClass public static void setup() throws Exception {
+    // Eclipse doesn't pick this up correctly from the plugin
+    // configuration in the pom.
+    System.setProperty(HttpServerFunctionalTest.TEST_BUILD_WEBAPPS, "target/test-classes/webapps");
     server = createTestServer();
     server.start();
     baseUrl = getServerURL(server);
@@ -105,4 +112,22 @@ public class TestJMXJsonServlet extends HttpServerFunctionalTest {
     assertReFind("\\}\\);$", result);
 
   }
+
+  @Test
+  public void testDisallowedJSONPCallback() throws Exception {
+    String callback = "function(){alert('bigproblems!')};foo";
+    URL url = new URL(
+        baseUrl, "/jmx?qry=java.lang:type=Memory&callback="+URLEncoder.encode(callback, "UTF-8"));
+    HttpURLConnection cnxn = (HttpURLConnection) url.openConnection();
+    assertEquals(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, cnxn.getResponseCode());
+  }
+
+  @Test
+  public void testUnderscoresInJSONPCallback() throws Exception {
+    String callback = "my_function";
+    URL url = new URL(
+        baseUrl, "/jmx?qry=java.lang:type=Memory&callback="+URLEncoder.encode(callback, "UTF-8"));
+    HttpURLConnection cnxn = (HttpURLConnection) url.openConnection();
+    assertEquals(HttpServletResponse.SC_OK, cnxn.getResponseCode());
+  }
 }


[4/5] hbase git commit: HBASE-17409 Limit jsonp callback name to prevent xss

Posted by el...@apache.org.
HBASE-17409 Limit jsonp callback name to prevent xss


Project: http://git-wip-us.apache.org/repos/asf/hbase/repo
Commit: http://git-wip-us.apache.org/repos/asf/hbase/commit/601518ab
Tree: http://git-wip-us.apache.org/repos/asf/hbase/tree/601518ab
Diff: http://git-wip-us.apache.org/repos/asf/hbase/diff/601518ab

Branch: refs/heads/branch-1.2
Commit: 601518abbf6623bcc6ba28e41b8936372bd6afaa
Parents: 28ec260
Author: Josh Elser <el...@apache.org>
Authored: Tue Jan 3 17:46:45 2017 -0500
Committer: Josh Elser <el...@apache.org>
Committed: Wed Jan 4 19:36:55 2017 -0500

----------------------------------------------------------------------
 .../hadoop/hbase/http/jmx/JMXJsonServlet.java   | 29 ++++++++++++++++----
 .../hbase/http/jmx/TestJMXJsonServlet.java      | 25 +++++++++++++++++
 2 files changed, 48 insertions(+), 6 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hbase/blob/601518ab/hbase-server/src/main/java/org/apache/hadoop/hbase/http/jmx/JMXJsonServlet.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/http/jmx/JMXJsonServlet.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/http/jmx/JMXJsonServlet.java
index 8ba26dd..0d7d99a 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/http/jmx/JMXJsonServlet.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/http/jmx/JMXJsonServlet.java
@@ -152,9 +152,7 @@ public class JMXJsonServlet extends HttpServlet {
    *          The servlet response we are creating
    */
   @Override
-  @edu.umd.cs.findbugs.annotations.SuppressWarnings(value="XSS_REQUEST_PARAMETER_TO_SERVLET_WRITER",
-    justification="TODO: See HBASE-15122")
-  public void doGet(HttpServletRequest request, HttpServletResponse response) {
+  public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
     try {
       if (!HttpServer.isInstrumentationAccessAllowed(getServletContext(), request, response)) {
         return;
@@ -163,10 +161,10 @@ public class JMXJsonServlet extends HttpServlet {
       PrintWriter writer = null;
       JSONBean.Writer beanWriter = null;
       try {
+        jsonpcb = checkCallbackName(request.getParameter(CALLBACK_PARAM));
         writer = response.getWriter();
         beanWriter = this.jsonBeanWriter.open(writer);
         // "callback" parameter implies JSONP outpout
-        jsonpcb = request.getParameter(CALLBACK_PARAM);
         if (jsonpcb != null) {
           response.setContentType("application/javascript; charset=utf8");
           writer.write(jsonpcb + "(");
@@ -216,10 +214,29 @@ public class JMXJsonServlet extends HttpServlet {
       }
     } catch (IOException e) {
       LOG.error("Caught an exception while processing JMX request", e);
-      response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
+      response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
     } catch (MalformedObjectNameException e) {
       LOG.error("Caught an exception while processing JMX request", e);
-      response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
+      response.sendError(HttpServletResponse.SC_BAD_REQUEST);
     }
   }
+
+  /**
+   * Verifies that the callback property, if provided, is purely alphanumeric.
+   * This prevents a malicious callback name (that is javascript code) from being
+   * returned by the UI to an unsuspecting user.
+   *
+   * @param callbackName The callback name, can be null.
+   * @return The callback name
+   * @throws IOException If the name is disallowed.
+   */
+  private String checkCallbackName(String callbackName) throws IOException {
+    if (null == callbackName) {
+      return null;
+    }
+    if (callbackName.matches("[A-Za-z0-9_]+")) {
+      return callbackName;
+    }
+    throw new IOException("'callback' must be alphanumeric");
+  }
 }

http://git-wip-us.apache.org/repos/asf/hbase/blob/601518ab/hbase-server/src/test/java/org/apache/hadoop/hbase/http/jmx/TestJMXJsonServlet.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/http/jmx/TestJMXJsonServlet.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/http/jmx/TestJMXJsonServlet.java
index dd345fb..5e02a78 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/http/jmx/TestJMXJsonServlet.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/http/jmx/TestJMXJsonServlet.java
@@ -17,10 +17,14 @@
 
 package org.apache.hadoop.hbase.http.jmx;
 
+import java.net.HttpURLConnection;
 import java.net.URL;
+import java.net.URLEncoder;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
+import javax.servlet.http.HttpServletResponse;
+
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.hbase.testclassification.SmallTests;
@@ -38,6 +42,9 @@ public class TestJMXJsonServlet extends HttpServerFunctionalTest {
   private static URL baseUrl;
 
   @BeforeClass public static void setup() throws Exception {
+    // Eclipse doesn't pick this up correctly from the plugin
+    // configuration in the pom.
+    System.setProperty(HttpServerFunctionalTest.TEST_BUILD_WEBAPPS, "target/test-classes/webapps");
     server = createTestServer();
     server.start();
     baseUrl = getServerURL(server);
@@ -105,4 +112,22 @@ public class TestJMXJsonServlet extends HttpServerFunctionalTest {
     assertReFind("\\}\\);$", result);
 
   }
+
+  @Test
+  public void testDisallowedJSONPCallback() throws Exception {
+    String callback = "function(){alert('bigproblems!')};foo";
+    URL url = new URL(
+        baseUrl, "/jmx?qry=java.lang:type=Memory&callback="+URLEncoder.encode(callback, "UTF-8"));
+    HttpURLConnection cnxn = (HttpURLConnection) url.openConnection();
+    assertEquals(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, cnxn.getResponseCode());
+  }
+
+  @Test
+  public void testUnderscoresInJSONPCallback() throws Exception {
+    String callback = "my_function";
+    URL url = new URL(
+        baseUrl, "/jmx?qry=java.lang:type=Memory&callback="+URLEncoder.encode(callback, "UTF-8"));
+    HttpURLConnection cnxn = (HttpURLConnection) url.openConnection();
+    assertEquals(HttpServletResponse.SC_OK, cnxn.getResponseCode());
+  }
 }


[3/5] hbase git commit: HBASE-17409 Limit jsonp callback name to prevent xss

Posted by el...@apache.org.
HBASE-17409 Limit jsonp callback name to prevent xss


Project: http://git-wip-us.apache.org/repos/asf/hbase/repo
Commit: http://git-wip-us.apache.org/repos/asf/hbase/commit/1829cd54
Tree: http://git-wip-us.apache.org/repos/asf/hbase/tree/1829cd54
Diff: http://git-wip-us.apache.org/repos/asf/hbase/diff/1829cd54

Branch: refs/heads/branch-1.3
Commit: 1829cd541ac722ef2a6a115cb3e45c1379c6ffd0
Parents: e359c76
Author: Josh Elser <el...@apache.org>
Authored: Tue Jan 3 17:46:45 2017 -0500
Committer: Josh Elser <el...@apache.org>
Committed: Wed Jan 4 19:36:47 2017 -0500

----------------------------------------------------------------------
 .../hadoop/hbase/http/jmx/JMXJsonServlet.java   | 29 ++++++++++++++++----
 .../hbase/http/jmx/TestJMXJsonServlet.java      | 25 +++++++++++++++++
 2 files changed, 48 insertions(+), 6 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hbase/blob/1829cd54/hbase-server/src/main/java/org/apache/hadoop/hbase/http/jmx/JMXJsonServlet.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/http/jmx/JMXJsonServlet.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/http/jmx/JMXJsonServlet.java
index 8ba26dd..0d7d99a 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/http/jmx/JMXJsonServlet.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/http/jmx/JMXJsonServlet.java
@@ -152,9 +152,7 @@ public class JMXJsonServlet extends HttpServlet {
    *          The servlet response we are creating
    */
   @Override
-  @edu.umd.cs.findbugs.annotations.SuppressWarnings(value="XSS_REQUEST_PARAMETER_TO_SERVLET_WRITER",
-    justification="TODO: See HBASE-15122")
-  public void doGet(HttpServletRequest request, HttpServletResponse response) {
+  public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
     try {
       if (!HttpServer.isInstrumentationAccessAllowed(getServletContext(), request, response)) {
         return;
@@ -163,10 +161,10 @@ public class JMXJsonServlet extends HttpServlet {
       PrintWriter writer = null;
       JSONBean.Writer beanWriter = null;
       try {
+        jsonpcb = checkCallbackName(request.getParameter(CALLBACK_PARAM));
         writer = response.getWriter();
         beanWriter = this.jsonBeanWriter.open(writer);
         // "callback" parameter implies JSONP outpout
-        jsonpcb = request.getParameter(CALLBACK_PARAM);
         if (jsonpcb != null) {
           response.setContentType("application/javascript; charset=utf8");
           writer.write(jsonpcb + "(");
@@ -216,10 +214,29 @@ public class JMXJsonServlet extends HttpServlet {
       }
     } catch (IOException e) {
       LOG.error("Caught an exception while processing JMX request", e);
-      response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
+      response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
     } catch (MalformedObjectNameException e) {
       LOG.error("Caught an exception while processing JMX request", e);
-      response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
+      response.sendError(HttpServletResponse.SC_BAD_REQUEST);
     }
   }
+
+  /**
+   * Verifies that the callback property, if provided, is purely alphanumeric.
+   * This prevents a malicious callback name (that is javascript code) from being
+   * returned by the UI to an unsuspecting user.
+   *
+   * @param callbackName The callback name, can be null.
+   * @return The callback name
+   * @throws IOException If the name is disallowed.
+   */
+  private String checkCallbackName(String callbackName) throws IOException {
+    if (null == callbackName) {
+      return null;
+    }
+    if (callbackName.matches("[A-Za-z0-9_]+")) {
+      return callbackName;
+    }
+    throw new IOException("'callback' must be alphanumeric");
+  }
 }

http://git-wip-us.apache.org/repos/asf/hbase/blob/1829cd54/hbase-server/src/test/java/org/apache/hadoop/hbase/http/jmx/TestJMXJsonServlet.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/http/jmx/TestJMXJsonServlet.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/http/jmx/TestJMXJsonServlet.java
index dd345fb..5e02a78 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/http/jmx/TestJMXJsonServlet.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/http/jmx/TestJMXJsonServlet.java
@@ -17,10 +17,14 @@
 
 package org.apache.hadoop.hbase.http.jmx;
 
+import java.net.HttpURLConnection;
 import java.net.URL;
+import java.net.URLEncoder;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
+import javax.servlet.http.HttpServletResponse;
+
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.hbase.testclassification.SmallTests;
@@ -38,6 +42,9 @@ public class TestJMXJsonServlet extends HttpServerFunctionalTest {
   private static URL baseUrl;
 
   @BeforeClass public static void setup() throws Exception {
+    // Eclipse doesn't pick this up correctly from the plugin
+    // configuration in the pom.
+    System.setProperty(HttpServerFunctionalTest.TEST_BUILD_WEBAPPS, "target/test-classes/webapps");
     server = createTestServer();
     server.start();
     baseUrl = getServerURL(server);
@@ -105,4 +112,22 @@ public class TestJMXJsonServlet extends HttpServerFunctionalTest {
     assertReFind("\\}\\);$", result);
 
   }
+
+  @Test
+  public void testDisallowedJSONPCallback() throws Exception {
+    String callback = "function(){alert('bigproblems!')};foo";
+    URL url = new URL(
+        baseUrl, "/jmx?qry=java.lang:type=Memory&callback="+URLEncoder.encode(callback, "UTF-8"));
+    HttpURLConnection cnxn = (HttpURLConnection) url.openConnection();
+    assertEquals(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, cnxn.getResponseCode());
+  }
+
+  @Test
+  public void testUnderscoresInJSONPCallback() throws Exception {
+    String callback = "my_function";
+    URL url = new URL(
+        baseUrl, "/jmx?qry=java.lang:type=Memory&callback="+URLEncoder.encode(callback, "UTF-8"));
+    HttpURLConnection cnxn = (HttpURLConnection) url.openConnection();
+    assertEquals(HttpServletResponse.SC_OK, cnxn.getResponseCode());
+  }
 }


[5/5] hbase git commit: HBASE-17409 Limit jsonp callback name to prevent xss

Posted by el...@apache.org.
HBASE-17409 Limit jsonp callback name to prevent xss


Project: http://git-wip-us.apache.org/repos/asf/hbase/repo
Commit: http://git-wip-us.apache.org/repos/asf/hbase/commit/63d8186d
Tree: http://git-wip-us.apache.org/repos/asf/hbase/tree/63d8186d
Diff: http://git-wip-us.apache.org/repos/asf/hbase/diff/63d8186d

Branch: refs/heads/branch-1.1
Commit: 63d8186d45c83bd0d31d6ae3750046b49000f38c
Parents: e32f8ac
Author: Josh Elser <el...@apache.org>
Authored: Tue Jan 3 17:46:45 2017 -0500
Committer: Josh Elser <el...@apache.org>
Committed: Wed Jan 4 19:37:39 2017 -0500

----------------------------------------------------------------------
 .../hadoop/hbase/http/jmx/JMXJsonServlet.java   | 27 +++++++++++++++++---
 .../hbase/http/jmx/TestJMXJsonServlet.java      | 25 ++++++++++++++++++
 2 files changed, 48 insertions(+), 4 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hbase/blob/63d8186d/hbase-server/src/main/java/org/apache/hadoop/hbase/http/jmx/JMXJsonServlet.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/http/jmx/JMXJsonServlet.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/http/jmx/JMXJsonServlet.java
index b6e97a8..5d11267 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/http/jmx/JMXJsonServlet.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/http/jmx/JMXJsonServlet.java
@@ -145,7 +145,7 @@ public class JMXJsonServlet extends HttpServlet {
    *          The servlet response we are creating
    */
   @Override
-  public void doGet(HttpServletRequest request, HttpServletResponse response) {
+  public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
     try {
       if (!HttpServer.isInstrumentationAccessAllowed(getServletContext(), request, response)) {
         return;
@@ -154,10 +154,10 @@ public class JMXJsonServlet extends HttpServlet {
       PrintWriter writer = null;
       JSONBean.Writer beanWriter = null;
       try {
+        jsonpcb = checkCallbackName(request.getParameter(CALLBACK_PARAM));
         writer = response.getWriter();
         beanWriter = this.jsonBeanWriter.open(writer);
         // "callback" parameter implies JSONP outpout
-        jsonpcb = request.getParameter(CALLBACK_PARAM);
         if (jsonpcb != null) {
           response.setContentType("application/javascript; charset=utf8");
           writer.write(jsonpcb + "(");
@@ -207,10 +207,29 @@ public class JMXJsonServlet extends HttpServlet {
       }
     } catch (IOException e) {
       LOG.error("Caught an exception while processing JMX request", e);
-      response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
+      response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
     } catch (MalformedObjectNameException e) {
       LOG.error("Caught an exception while processing JMX request", e);
-      response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
+      response.sendError(HttpServletResponse.SC_BAD_REQUEST);
     }
   }
+
+  /**
+   * Verifies that the callback property, if provided, is purely alphanumeric.
+   * This prevents a malicious callback name (that is javascript code) from being
+   * returned by the UI to an unsuspecting user.
+   *
+   * @param callbackName The callback name, can be null.
+   * @return The callback name
+   * @throws IOException If the name is disallowed.
+   */
+  private String checkCallbackName(String callbackName) throws IOException {
+    if (null == callbackName) {
+      return null;
+    }
+    if (callbackName.matches("[A-Za-z0-9_]+")) {
+      return callbackName;
+    }
+    throw new IOException("'callback' must be alphanumeric");
+  }
 }

http://git-wip-us.apache.org/repos/asf/hbase/blob/63d8186d/hbase-server/src/test/java/org/apache/hadoop/hbase/http/jmx/TestJMXJsonServlet.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/http/jmx/TestJMXJsonServlet.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/http/jmx/TestJMXJsonServlet.java
index dd345fb..5e02a78 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/http/jmx/TestJMXJsonServlet.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/http/jmx/TestJMXJsonServlet.java
@@ -17,10 +17,14 @@
 
 package org.apache.hadoop.hbase.http.jmx;
 
+import java.net.HttpURLConnection;
 import java.net.URL;
+import java.net.URLEncoder;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
+import javax.servlet.http.HttpServletResponse;
+
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.hbase.testclassification.SmallTests;
@@ -38,6 +42,9 @@ public class TestJMXJsonServlet extends HttpServerFunctionalTest {
   private static URL baseUrl;
 
   @BeforeClass public static void setup() throws Exception {
+    // Eclipse doesn't pick this up correctly from the plugin
+    // configuration in the pom.
+    System.setProperty(HttpServerFunctionalTest.TEST_BUILD_WEBAPPS, "target/test-classes/webapps");
     server = createTestServer();
     server.start();
     baseUrl = getServerURL(server);
@@ -105,4 +112,22 @@ public class TestJMXJsonServlet extends HttpServerFunctionalTest {
     assertReFind("\\}\\);$", result);
 
   }
+
+  @Test
+  public void testDisallowedJSONPCallback() throws Exception {
+    String callback = "function(){alert('bigproblems!')};foo";
+    URL url = new URL(
+        baseUrl, "/jmx?qry=java.lang:type=Memory&callback="+URLEncoder.encode(callback, "UTF-8"));
+    HttpURLConnection cnxn = (HttpURLConnection) url.openConnection();
+    assertEquals(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, cnxn.getResponseCode());
+  }
+
+  @Test
+  public void testUnderscoresInJSONPCallback() throws Exception {
+    String callback = "my_function";
+    URL url = new URL(
+        baseUrl, "/jmx?qry=java.lang:type=Memory&callback="+URLEncoder.encode(callback, "UTF-8"));
+    HttpURLConnection cnxn = (HttpURLConnection) url.openConnection();
+    assertEquals(HttpServletResponse.SC_OK, cnxn.getResponseCode());
+  }
 }