CVE-2020-12506

WAGO: Authentication Bypass Vulnerability in WAGO 750-36X and WAGO 750-8XX Versions <= FW03

Severity Score

9.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Improper Authentication vulnerability in WAGO 750-8XX series with FW version <= FW03 allows an attacker to change the settings of the devices by sending specifically constructed requests without authentication This issue affects: WAGO 750-362, WAGO 750-363, WAGO 750-823, WAGO 750-832/xxx-xxx, WAGO 750-862, WAGO 750-891, WAGO 750-890/xxx-xxx in versions FW03 and prior versions.

La vulnerabilidad de autenticación inadecuada en la serie WAGO 750-8XX con versión FW versiones anteriores e iguales a FW03 permite a un atacante cambiar la configuración de los dispositivos mediante el envío de solicitudes específicamente construidas sin autenticación Este problema afecta a: WAGO 750-362, WAGO 750-363, WAGO 750-823, WAGO 750-832/xxx-xxx, WAGO 750-862, WAGO 750-891, WAGO 750-890/xxx-xxx en versiones FW03 y anteriores.

*Credits: Maxim Rupp (https://rupp.it) reported this vulnerability to WAGO., coordinated by CERT@VDE

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-04-30 CVE Reserved
2020-09-30 CVE Published
2023-06-16 EPSS Updated
2024-09-17 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-306: Missing Authentication for Critical Function

CAPEC

References (1)

URL	Tag	Source
https://cert.vde.com/en-us/advisories/vde-2020-028	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
Wago Search vendor "Wago"	750-362 Firmware Search vendor "Wago" for product "750-362 Firmware"	<= fw03 Search vendor "Wago" for product "750-362 Firmware" and version " <= fw03"	-	Affected	in	Wago Search vendor "Wago"	750-362 Search vendor "Wago" for product "750-362"	-	-	Safe
Wago Search vendor "Wago"	750-363 Firmware Search vendor "Wago" for product "750-363 Firmware"	<= fw03 Search vendor "Wago" for product "750-363 Firmware" and version " <= fw03"	-	Affected	in	Wago Search vendor "Wago"	750-363 Search vendor "Wago" for product "750-363"	-	-	Safe
Wago Search vendor "Wago"	750-823 Firmware Search vendor "Wago" for product "750-823 Firmware"	<= fw03 Search vendor "Wago" for product "750-823 Firmware" and version " <= fw03"	-	Affected	in	Wago Search vendor "Wago"	750-823 Search vendor "Wago" for product "750-823"	-	-	Safe
Wago Search vendor "Wago"	750-832 Firmware Search vendor "Wago" for product "750-832 Firmware"	<= fw03 Search vendor "Wago" for product "750-832 Firmware" and version " <= fw03"	-	Affected	in	Wago Search vendor "Wago"	750-832 Search vendor "Wago" for product "750-832"	-	-	Safe
Wago Search vendor "Wago"	750-862 Firmware Search vendor "Wago" for product "750-862 Firmware"	<= fw03 Search vendor "Wago" for product "750-862 Firmware" and version " <= fw03"	-	Affected	in	Wago Search vendor "Wago"	750-862 Search vendor "Wago" for product "750-862"	-	-	Safe
Wago Search vendor "Wago"	750-891 Firmware Search vendor "Wago" for product "750-891 Firmware"	<= fw03 Search vendor "Wago" for product "750-891 Firmware" and version " <= fw03"	-	Affected	in	Wago Search vendor "Wago"	750-891 Search vendor "Wago" for product "750-891"	-	-	Safe
Wago Search vendor "Wago"	750-890 Firmware Search vendor "Wago" for product "750-890 Firmware"	<= fw03 Search vendor "Wago" for product "750-890 Firmware" and version " <= fw03"	-	Affected	in	Wago Search vendor "Wago"	750-890 Search vendor "Wago" for product "750-890"	-	-	Safe