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| <ul id="-path-navigation"><li><a href="/index.html">Home</a></li><li>CVE-2016-4432</li></ul> |
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| <h1 id="cve-2016-4432">CVE-2016-4432</h1> |
| |
| <h2 id="severity">Severity</h2> |
| |
| <p>Important</p> |
| |
| <h2 id="affected-components">Affected components</h2> |
| |
| <p>Qpid Broker-J</p> |
| |
| <h2 id="affected-versions">Affected versions</h2> |
| |
| <p>6.0.2 and earlier</p> |
| |
| <h2 id="fixed-versions">Fixed versions</h2> |
| |
| <p><a href="/releases/qpid-java-6.0.3/index.html">6.0.3</a></p> |
| |
| <h2 id="description">Description</h2> |
| |
| <p>The code responsible for handling incoming AMQP 0-8, 0-9, 0-91, and |
| 0-10 connections contains a flaw that allows authentication to be |
| bypassed. An remote attacker can exploit this vulnerability to |
| perform actions, without the need to specify valid credentials. For |
| instance, unauthorised messages could be injected or messages stolen.</p> |
| |
| <p>The vulnerability cannot be exploited if the Access Control List (ACL) |
| feature is enabled AND access to all virtual hosts controlled.</p> |
| |
| <p>The vulnerability does not apply to the Broker's AMQP 1.0 support.</p> |
| |
| <p>The vulnerability does not apply if the Broker is configured to |
| require SSL client authentication for all messaging connections.</p> |
| |
| <h2 id="resolution">Resolution</h2> |
| |
| <p>Users should upgrade the Apache Qpid Broker-J to |
| version 6.0.3 or later (recommended).</p> |
| |
| <h2 id="mitigation">Mitigation</h2> |
| |
| <p>If upgrading is not possible, the vulnerability can be mitigated using |
| an ACL file containing "ACCESS VIRTUALHOST" clauses that white-lists |
| user access to all virtualhosts.</p> |
| |
| <p>If AMQP 0-8, 0-9, 0-91, and 0-10 support is not required, the |
| vulnerability can also be mitigated by turning off these protocols at |
| the Port level.</p> |
| |
| <h2 id="references">References</h2> |
| |
| <p><a href="https://issues.apache.org/jira/browse/QPID-7257">QPID-7257</a></p> |
| |
| |
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