CVE-2022-41678

/// Technical description

Once an user is authenticated on Jolokia, he can potentially trigger arbitrary code execution. 

In details, in ActiveMQ configurations, jetty allows

org.jolokia.http.AgentServlet to handler request to /api/jolokia

org.jolokia.http.HttpRequestHandler#handlePostRequest is able to

create JmxRequest through JSONObject. And calls to

org.jolokia.http.HttpRequestHandler#executeRequest.

Into deeper calling stacks,

org.jolokia.handler.ExecHandler#doHandleRequest can be invoked

through refection. This could lead to RCE through via

various mbeans. One example is unrestricted deserialization in jdk.management.jfr.FlightRecorderMXBeanImpl which exists on Java version above 11.

1 Call newRecording.

2 Call setConfiguration. And a webshell data hides in it.

3 Call startRecording.

4 Call copyTo method. The webshell will be written to a .jsp file.

The mitigation is to restrict (by default) the actions authorized on Jolokia, or disable Jolokia.

A more restrictive Jolokia configuration has been de

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References