CVE-2022-41678

Summary

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 defined in default ActiveMQ distribution. We encourage users to upgrade to ActiveMQ distributions version including updated Jolokia configuration: 5.16.6, 5.17.4, 5.18.0, 6.0.0.

• CVE-2022-41678PoC

  CVE-2022-41678: Dangerous MBeans Accessible via Jolokia API in Apache ActiveMQ

• CVE-2022-41678Exploit

  CVE-2022-41678 是 Apache ActiveMQ 中的一个远程代码执行漏洞。该漏洞允许攻击者通过 JMX (Java Management Extensions) 接口修改 Log4j 配置或 JFR (Java Flight Recorder) 配置，从而写入恶意的 JSP webshell 到服务器的 web 目录中，最终实现远程代码执行。