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https://issues.apache.org/jira/browse/HADOOP-14786?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16131610#comment-16131610
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John Zhuge edited comment on HADOOP-14786 at 8/18/17 5:03 AM:
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These HTTP servers built on top of HttpServer2 are affected:
* NameNodeHttpServer
* SecondaryNameNode InfoServer
* JournalNodeHttpServer
* DatanodeHttpServer
* Nfs3HttpServer
* ResourceManager
* NodeTimelineCollectorManager
* TimelineReaderServer
The exceptions are KMSWebServer and HttpFSServerWebServer. Even though they are
also built on top of HttpServer2, they provide their own authFilter in web.xml.
was (Author: jzhuge):
This issue applies to all HTTP server built on top of HttpServer2:
* NameNodeHttpServer
* SecondaryNameNode InfoServer
* JournalNodeHttpServer
* DatanodeHttpServer
* Nfs3HttpServer
* ResourceManager
* NodeTimelineCollectorManager
* TimelineReaderServer
> HTTP default servlets do not require authentication when kerberos is enabled
> ----------------------------------------------------------------------------
>
> Key: HADOOP-14786
> URL: https://issues.apache.org/jira/browse/HADOOP-14786
> Project: Hadoop Common
> Issue Type: Bug
> Components: security
> Affects Versions: 2.8.0
> Reporter: John Zhuge
> Assignee: John Zhuge
>
> The default HttpServer2 servlet /jmx, /conf, /logLevel, and /stack do not
> require authentication when Kerberos is enabled.
> {code:java|title=HttpServer2#addDefaultServlets}
> // set up default servlets
> addServlet("stacks", "/stacks", StackServlet.class);
> addServlet("logLevel", "/logLevel", LogLevel.Servlet.class);
> addServlet("jmx", "/jmx", JMXJsonServlet.class);
> addServlet("conf", "/conf", ConfServlet.class);
> {code}
> {code:java|title=HttpServer2#addServlet}
> public void addServlet(String name, String pathSpec,
> Class<? extends HttpServlet> clazz) {
> addInternalServlet(name, pathSpec, clazz, false);
> addFilterPathMapping(pathSpec, webAppContext);
> {code}
> {code:java|title=Httpserver2#addInternalServlet}
> addInternalServlet(…, bool requireAuth)
> …
> if(requireAuth && UserGroupInformation.isSecurityEnabled()) {
> LOG.info("Adding Kerberos (SPNEGO) filter to " + name);
> {code}
> {{requireAuth}} is {{false}} for the default servlets inside
> {{addInternalServlet}}.
> The issue can be verified by running the following curl command against
> NameNode web address when Kerberos is enabled:
> {noformat}
> kdestroy
> curl --negotiate -u: -k -sS 'https://<nn-web>:9871/jmx'
> {noformat}
> Expect curl to fail, but it returns JMX anyway.
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