CVE-2020-10920

C-MORE HMI EA9 Control Port Missing Authentication for Critical Function Remote Code Execution Vulnerability

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

This vulnerability allows remote attackers to execute arbitrary code on affected installations of C-MORE HMI EA9 Firmware version 6.52 touch screen panels. Authentication is not required to exploit this vulnerability. The specific flaw exists within the control service, which listens on TCP port 9999 by default. The issue results from the lack of authentication prior to allowing alterations to the system configuration. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-10493.

Esta vulnerabilidad permite a atacantes remotos ejecutar código arbitrario en las instalaciones afectadas de los paneles de control de la pantalla táctil C-MORE HMI EA9 versión de Firmware 6.52. No es requerida una autenticación para explotar esta vulnerabilidad. El fallo específico se presenta dentro del servicio de control, que escucha en el puerto TCP 9999 por defecto. El problema resulta de una falta de autenticación antes de permitir modificaciones en la configuración del sistema. Un atacante puede aprovechar esta vulnerabilidad para ejecutar código en el contexto del dispositivo. Fue ZDI-CAN-10493

This vulnerability allows remote attackers to execute arbitrary code on affected installations of C-More HMI EA9 touch screen panels. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the control service, which listens on TCP port 9999 by default. The issue results from the lack of authentication prior to allowing alterations to the system configuration. An attacker can leverage this vulnerability to execute code in the context of the device.

*Credits: Ta-Lun Yen & Chizuru Toyama of TXOne IoT/ICS Security Research Labs (Trend Micro)

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-03-24 CVE Reserved
2020-07-07 CVE Published
2024-08-04 CVE Updated
2024-12-17 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-306: Missing Authentication for Critical Function

CAPEC

References (1)

URL	Tag	Source
https://www.zerodayinitiative.com/advisories/ZDI-20-808	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Automationdirect Search vendor "Automationdirect"	C-more Hmi Ea9 Firmware Search vendor "Automationdirect" for product "C-more Hmi Ea9 Firmware"	6.52 Search vendor "Automationdirect" for product "C-more Hmi Ea9 Firmware" and version "6.52"	-	Affected	in	Automationdirect Search vendor "Automationdirect"	Ea9-pgmsw Search vendor "Automationdirect" for product "Ea9-pgmsw"	-	-	Safe
Automationdirect Search vendor "Automationdirect"	C-more Hmi Ea9 Firmware Search vendor "Automationdirect" for product "C-more Hmi Ea9 Firmware"	6.52 Search vendor "Automationdirect" for product "C-more Hmi Ea9 Firmware" and version "6.52"	-	Affected	in	Automationdirect Search vendor "Automationdirect"	Ea9-rhmi Search vendor "Automationdirect" for product "Ea9-rhmi"	-	-	Safe
Automationdirect Search vendor "Automationdirect"	C-more Hmi Ea9 Firmware Search vendor "Automationdirect" for product "C-more Hmi Ea9 Firmware"	6.52 Search vendor "Automationdirect" for product "C-more Hmi Ea9 Firmware" and version "6.52"	-	Affected	in	Automationdirect Search vendor "Automationdirect"	Ea9-t10cl Search vendor "Automationdirect" for product "Ea9-t10cl"	-	-	Safe
Automationdirect Search vendor "Automationdirect"	C-more Hmi Ea9 Firmware Search vendor "Automationdirect" for product "C-more Hmi Ea9 Firmware"	6.52 Search vendor "Automationdirect" for product "C-more Hmi Ea9 Firmware" and version "6.52"	-	Affected	in	Automationdirect Search vendor "Automationdirect"	Ea9-t10wcl Search vendor "Automationdirect" for product "Ea9-t10wcl"	-	-	Safe
Automationdirect Search vendor "Automationdirect"	C-more Hmi Ea9 Firmware Search vendor "Automationdirect" for product "C-more Hmi Ea9 Firmware"	6.52 Search vendor "Automationdirect" for product "C-more Hmi Ea9 Firmware" and version "6.52"	-	Affected	in	Automationdirect Search vendor "Automationdirect"	Ea9-t12cl Search vendor "Automationdirect" for product "Ea9-t12cl"	-	-	Safe
Automationdirect Search vendor "Automationdirect"	C-more Hmi Ea9 Firmware Search vendor "Automationdirect" for product "C-more Hmi Ea9 Firmware"	6.52 Search vendor "Automationdirect" for product "C-more Hmi Ea9 Firmware" and version "6.52"	-	Affected	in	Automationdirect Search vendor "Automationdirect"	Ea9-t15cl Search vendor "Automationdirect" for product "Ea9-t15cl"	-	-	Safe
Automationdirect Search vendor "Automationdirect"	C-more Hmi Ea9 Firmware Search vendor "Automationdirect" for product "C-more Hmi Ea9 Firmware"	6.52 Search vendor "Automationdirect" for product "C-more Hmi Ea9 Firmware" and version "6.52"	-	Affected	in	Automationdirect Search vendor "Automationdirect"	Ea9-t15cl-r Search vendor "Automationdirect" for product "Ea9-t15cl-r"	-	-	Safe
Automationdirect Search vendor "Automationdirect"	C-more Hmi Ea9 Firmware Search vendor "Automationdirect" for product "C-more Hmi Ea9 Firmware"	6.52 Search vendor "Automationdirect" for product "C-more Hmi Ea9 Firmware" and version "6.52"	-	Affected	in	Automationdirect Search vendor "Automationdirect"	Ea9-t6cl Search vendor "Automationdirect" for product "Ea9-t6cl"	-	-	Safe
Automationdirect Search vendor "Automationdirect"	C-more Hmi Ea9 Firmware Search vendor "Automationdirect" for product "C-more Hmi Ea9 Firmware"	6.52 Search vendor "Automationdirect" for product "C-more Hmi Ea9 Firmware" and version "6.52"	-	Affected	in	Automationdirect Search vendor "Automationdirect"	Ea9-t6cl-r Search vendor "Automationdirect" for product "Ea9-t6cl-r"	-	-	Safe
Automationdirect Search vendor "Automationdirect"	C-more Hmi Ea9 Firmware Search vendor "Automationdirect" for product "C-more Hmi Ea9 Firmware"	6.52 Search vendor "Automationdirect" for product "C-more Hmi Ea9 Firmware" and version "6.52"	-	Affected	in	Automationdirect Search vendor "Automationdirect"	Ea9-t7cl Search vendor "Automationdirect" for product "Ea9-t7cl"	-	-	Safe
Automationdirect Search vendor "Automationdirect"	C-more Hmi Ea9 Firmware Search vendor "Automationdirect" for product "C-more Hmi Ea9 Firmware"	6.52 Search vendor "Automationdirect" for product "C-more Hmi Ea9 Firmware" and version "6.52"	-	Affected	in	Automationdirect Search vendor "Automationdirect"	Ea9-t7cl-r Search vendor "Automationdirect" for product "Ea9-t7cl-r"	-	-	Safe
Automationdirect Search vendor "Automationdirect"	C-more Hmi Ea9 Firmware Search vendor "Automationdirect" for product "C-more Hmi Ea9 Firmware"	6.52 Search vendor "Automationdirect" for product "C-more Hmi Ea9 Firmware" and version "6.52"	-	Affected	in	Automationdirect Search vendor "Automationdirect"	Ea9-t8cl Search vendor "Automationdirect" for product "Ea9-t8cl"	-	-	Safe