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https://issues.apache.org/jira/browse/DRILL-7351?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16941844#comment-16941844
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ASF GitHub Bot commented on DRILL-7351:
---------------------------------------
arina-ielchiieva commented on pull request #1864: DRILL-7351: Added tokens to
Web forms to prevent CSRF attacks
URL: https://github.com/apache/drill/pull/1864#discussion_r330018615
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/server/rest/CsrfTokenInjectFilter.java
##########
@@ -0,0 +1,61 @@
+/*
+ * 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.drill.exec.server.rest;
+
+import org.apache.commons.lang3.RandomStringUtils;
+
+import javax.servlet.Filter;
+import javax.servlet.FilterChain;
+import javax.servlet.FilterConfig;
+import javax.servlet.ServletException;
+import javax.servlet.ServletRequest;
+import javax.servlet.ServletResponse;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpSession;
+import javax.ws.rs.HttpMethod;
+import java.io.IOException;
+import java.security.SecureRandom;
+
+/**
+ * Generates and adds a CSRF token to a HTTP session. It is used to prevent
CSRF attacks.
+ */
+public class CsrfTokenInjectFilter implements Filter {
+ @Override
+ public void init(FilterConfig filterConfig) throws ServletException {
+ }
+
+ @Override
+ public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
+ HttpServletRequest httpRequest = (HttpServletRequest) request;
+ if (HttpMethod.GET.equalsIgnoreCase(httpRequest.getMethod())) {
+ HttpSession session = httpRequest.getSession(false);
Review comment:
Please add comment that we are explicitly not creating session with this
call.
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> WebUI is Vulnerable to CSRF
> ---------------------------
>
> Key: DRILL-7351
> URL: https://issues.apache.org/jira/browse/DRILL-7351
> Project: Apache Drill
> Issue Type: Bug
> Components: Web Server
> Affects Versions: 1.16.0
> Reporter: Don Perial
> Assignee: Anton Gozhiy
> Priority: Major
> Fix For: 1.17.0
>
> Attachments: Screen Shot 2019-08-19 at 10.11.50 AM.png,
> drill-csrf.html
>
>
> There is no way to protect the WebUI from CSRF and the fact that the value
> for the access-control-allow-origin header is '*' appears to confound this
> issue as well.
> The attached file demonstrates the vulnerability.
> Steps to replicate:
> # Login to an instance of the Drill WebUI.
> # Edit the attached [^drill-csrf.html]. Replace DRILL_HOST with the hostname
> of the Drill WebUI from step #1.
> # Load the file from #2 in the same browser as #1 either new tab or same
> window will do.
> # Return to the Drill WebUI and click on 'Profiles'.
> Observed results:
> The query 'SELECT 100' appears in the list of executed queries (see:
> [^Screen Shot 2019-08-19 at 10.11.50 AM.png] ).
> Expected results:
> It should be possible to whitelist or completely restrict code from other
> domain names to submit queries to the WebUI.
> Risks:
> Potential for code execution by unauthorized parties.
>
>
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