Unauthorized Access Vulnerability in JBoss
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JBoss is a container and server for managing EJBs that supports the EJB 1.1, EJB 2.0, and EJB3 specifications. However, the JBoss core service does not include a WEB container that supports servlet/JSP, and is generally bound with Tomcat or Jetty. JBoss listens on port 8080 by default.
In older versions of JBoss, the JBoss Web console (http://IP:8080/jmx-console) is accessible by default, without a username or password. Through the vulnerability of unauthorized access to the JBoss management console, the background service can be managed and system commands can be executed by script commands such as bouncing shells, wget writing Webshell files.
Use the vulnerability environment of CVE-2017-7504, start the environment:
Access port 8080 in the browser
Find the default JBoss page and click to enter the control page
Assuming it's an unauthorized access, clicking on JMX-Console will not prompt for a username and password. This is a different vulnerability environment and the username and password are both admin, admin, so pretend that no username and password are needed.
Find jboss.deployment and enter the application deployment page
After entering the application deployment page, scroll down to find void addURL(). Fill in the address of the Trojan on the remote server in the ParamValue section.
Access the iceword path to see the webshell
