| <!DOCTYPE html> |
| <!-- |
| - |
| - 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. |
| - |
| --> |
| <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"> |
| <head> |
| <title>CVE-2018-17187: transport TLS wrapper hostname verification mode not implemented - Apache Qpid™</title> |
| <meta http-equiv="X-UA-Compatible" content="IE=edge"/> |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"/> |
| <link rel="stylesheet" href="/site.css" type="text/css" async="async"/> |
| <link rel="stylesheet" href="/deferred.css" type="text/css" defer="defer"/> |
| <script type="text/javascript">var _deferredFunctions = [];</script> |
| <script type="text/javascript" src="/deferred.js" defer="defer"></script> |
| <!--[if lte IE 8]> |
| <link rel="stylesheet" href="/ie.css" type="text/css"/> |
| <script type="text/javascript" src="/html5shiv.js"></script> |
| <![endif]--> |
| |
| <!-- Redirects for `go get` and godoc.org --> |
| <meta name="go-import" |
| content="qpid.apache.org git https://git-wip-us.apache.org/repos/asf/qpid-proton.git"/> |
| <meta name="go-source" |
| content="qpid.apache.org |
| https://github.com/apache/qpid-proton/blob/go1/README.md |
| https://github.com/apache/qpid-proton/tree/go1{/dir} |
| https://github.com/apache/qpid-proton/blob/go1{/dir}/{file}#L{line}"/> |
| </head> |
| <body> |
| <div id="-content"> |
| <div id="-top" class="panel"> |
| <a id="-menu-link"><img width="16" height="16" src="" alt="Menu"/></a> |
| |
| <a id="-search-link"><img width="22" height="16" src="" alt="Search"/></a> |
| |
| <ul id="-global-navigation"> |
| <li><a id="-logotype" href="/index.html">Apache Qpid<sup>™</sup></a></li> |
| <li><a href="/documentation.html">Documentation</a></li> |
| <li><a href="/download.html">Download</a></li> |
| <li><a href="/discussion.html">Discussion</a></li> |
| </ul> |
| </div> |
| |
| <div id="-menu" class="panel" style="display: none;"> |
| <div class="flex"> |
| <section> |
| <h3>Project</h3> |
| |
| <ul> |
| <li><a href="/overview.html">Overview</a></li> |
| <li><a href="/components/index.html">Components</a></li> |
| <li><a href="/releases/index.html">Releases</a></li> |
| </ul> |
| </section> |
| |
| <section> |
| <h3>Messaging APIs</h3> |
| |
| <ul> |
| <li><a href="/proton/index.html">Qpid Proton</a></li> |
| <li><a href="/components/jms/index.html">Qpid JMS</a></li> |
| <li><a href="/components/messaging-api/index.html">Qpid Messaging API</a></li> |
| </ul> |
| </section> |
| |
| <section> |
| <h3>Servers and tools</h3> |
| |
| <ul> |
| <li><a href="/components/broker-j/index.html">Broker-J</a></li> |
| <li><a href="/components/cpp-broker/index.html">C++ broker</a></li> |
| <li><a href="/components/dispatch-router/index.html">Dispatch router</a></li> |
| </ul> |
| </section> |
| |
| <section> |
| <h3>Resources</h3> |
| |
| <ul> |
| <li><a href="/dashboard.html">Dashboard</a></li> |
| <li><a href="https://cwiki.apache.org/confluence/display/qpid/Index">Wiki</a></li> |
| <li><a href="/resources.html">More resources</a></li> |
| </ul> |
| </section> |
| </div> |
| </div> |
| |
| <div id="-search" class="panel" style="display: none;"> |
| <form action="http://www.google.com/search" method="get"> |
| <input type="hidden" name="sitesearch" value="qpid.apache.org"/> |
| <input type="text" name="q" maxlength="255" autofocus="autofocus" tabindex="1"/> |
| <button type="submit">Search</button> |
| <a href="/search.html">More ways to search</a> |
| </form> |
| </div> |
| |
| <div id="-middle" class="panel"> |
| <ul id="-path-navigation"><li><a href="/index.html">Home</a></li><li>CVE-2018-17187: transport TLS wrapper hostname verification mode not implemented</li></ul> |
| |
| <div id="-middle-content"> |
| <h1 id="cve-2018-17187-transport-tls-wrapper-hostname-verification-mode-not-implemented">CVE-2018-17187: transport TLS wrapper hostname verification mode not implemented</h1> |
| |
| <h2 id="severity">Severity</h2> |
| |
| <p>Important</p> |
| |
| <h2 id="affected-components">Affected components</h2> |
| |
| <p>Qpid Proton-J</p> |
| |
| <h2 id="affected-versions">Affected versions</h2> |
| |
| <p>0.3 to 0.29.0</p> |
| |
| <h2 id="fixed-versions">Fixed versions</h2> |
| |
| <p>0.30.0</p> |
| |
| <h2 id="description">Description</h2> |
| |
| <p>The Proton-J transport includes an optional wrapper layer to perform TLS, |
| enabled by use of the 'transport.ssl(...)' methods. Unless a verification |
| mode was explicitly configured, client and server modes previously defaulted |
| as documented to not verifying a peer certificate, with options to |
| configure this explicitly or select a certificate verification mode with or |
| without hostname verification being performed.</p> |
| |
| <p>The latter hostname verifying mode was not previously implemented, with |
| attempts to use it resulting in an exception. This left only the option to |
| verify the certificate is trusted, leaving such a client vulnerable to |
| Man In The Middle (MITM) attack.</p> |
| |
| <p>Uses of the Proton-J protocol engine which do not utilise the optional |
| transport TLS wrapper are not impacted, e.g. usage within Qpid JMS.</p> |
| |
| <h2 id="resolution">Resolution</h2> |
| |
| <p>Uses of Proton-J utilising the optional transport TLS wrapper layer that |
| wish to enable hostname verification must be upgraded to version 0.30.0 or |
| later and utilise the VerifyMode#VERIFY_PEER_NAME configuration, which is |
| now the default for client mode usage unless configured otherwise.</p> |
| |
| <h2 id="mitigation">Mitigation</h2> |
| |
| <p>If upgrading is not currently possible then potential workarounds include |
| providing a custom SSLContext which enables hostname verification, or |
| omitting use of the 'transport.ssl(...)' methods and performing TLS through |
| other means such as utilising existing IO framework support or supplying a |
| custom transport wrapper layer.</p> |
| |
| <h2 id="references">References</h2> |
| |
| <p><a href="https://issues.apache.org/jira/browse/PROTON-1962">PROTON-1962</a></p> |
| |
| <h2 id="credit">Credit</h2> |
| |
| <p>This issue was reported by Peter Stockli of Alphabot Security.</p> |
| |
| |
| <hr/> |
| |
| <ul id="-apache-navigation"> |
| <li><a href="http://www.apache.org/">Apache</a></li> |
| <li><a href="http://www.apache.org/licenses/">License</a></li> |
| <li><a href="http://www.apache.org/foundation/sponsorship.html">Sponsorship</a></li> |
| <li><a href="http://www.apache.org/foundation/thanks.html">Thanks!</a></li> |
| <li><a href="/security.html">Security</a></li> |
| <li><a href="http://www.apache.org/"><img id="-apache-feather" width="48" height="14" src="" alt="Apache"/></a></li> |
| </ul> |
| |
| <p id="-legal"> |
| Apache Qpid, Messaging built on AMQP; Copyright © 2015 |
| The Apache Software Foundation; Licensed under |
| the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache |
| License, Version 2.0</a>; Apache Qpid, Qpid, Qpid Proton, |
| Proton, Apache, the Apache feather logo, and the Apache Qpid |
| project logo are trademarks of The Apache Software |
| Foundation; All other marks mentioned may be trademarks or |
| registered trademarks of their respective owners |
| </p> |
| </div> |
| </div> |
| </div> |
| </body> |
| </html> |
