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| <ul id="-path-navigation"><li><a href="/index.html">Home</a></li><li>CVE-2016-4974</li></ul> |
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| <h1 id="cve-2016-4974">CVE-2016-4974</h1> |
| |
| <h2 id="severity">Severity</h2> |
| |
| <p>Moderate</p> |
| |
| <h2 id="affected-components">Affected components</h2> |
| |
| <p>Qpid JMS</p> |
| |
| <h2 id="affected-versions">Affected versions</h2> |
| |
| <p>0.9.0 and earlier</p> |
| |
| <h2 id="fixed-versions">Fixed versions</h2> |
| |
| <p>0.10.0 and later</p> |
| |
| <h2 id="description">Description</h2> |
| |
| <p>Deserialization of untrusted input while using JMS ObjectMessage.</p> |
| |
| <p>When applications call getObject() on a consumed JMS ObjectMessage |
| they are subject to the behaviour of any object deserialization during |
| the process of constructing the body to return. Unless the application |
| has taken outside steps to limit the deserialization process, they |
| can't protect against input that might try to make undesired use of |
| classes available on the application classpath that might be |
| vulnerable to exploitation. In order to exploit this vulnerability, an |
| attacker would need to be able to inject a suitably crafted AMQP |
| message containing the malicious JMS Object Message into the AMQP |
| message network. For this, the attacker would require valid |
| authentication credentials and suitable authorisation.</p> |
| |
| <h2 id="mitigation">Mitigation</h2> |
| |
| <p>Users using ObjectMessage can upgrade to Qpid JMS client 0.10.0 or |
| later, and use the new configuration options to whitelist trusted |
| content permitted for deserialization. When so configured, attempts to |
| deserialize input containing other content will be |
| prevented. Alternatively, users of older client releases may utilise |
| other means such as agent-based approaches to help govern content |
| permitted for deserialization in their application.</p> |
| |
| <h2 id="credit">Credit</h2> |
| |
| <p>This issue was discovered by Matthias Kaiser of Code White |
| (www.code-white.com).</p> |
| |
| <h2 id="references">References</h2> |
| |
| <p><a href="https://issues.apache.org/jira/browse/QPIDJMS-188">QPIDJMS-188</a></p> |
| |
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