CVE-2020-6988

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Rockwell Automation MicroLogix 1400 Controllers Series B v21.001 and prior, Series A, all versions, MicroLogix 1100 Controller, all versions, RSLogix 500 Software v12.001 and prior, A remote, unauthenticated attacker can send a request from the RSLogix 500 software to the victim’s MicroLogix controller. The controller will then respond to the client with used password values to authenticate the user on the client-side. This method of authentication may allow an attacker to bypass authentication altogether, disclose sensitive information, or leak credentials.

Rockwell Automation MicroLogix 1400 Controllers Series B versiones v21.001 y anteriores, Series A, todas las versiones, MicroLogix 1100 Controller, todas las versiones, RSLogix 500 Software versiones v12.001 y anteriores, un atacante no autenticado remoto puede enviar una petición desde el software RSLogix 500 hacia el controlador MicroLogix de la víctima. El controlador responderá al cliente con los valores de contraseña usados para autenticar al usuario en el lado del cliente. Este método de autenticación puede permitir a un atacante omitir la autenticación por completo, revelar información confidencial o filtrar credenciales.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-01-14 CVE Reserved
2020-03-16 CVE Published
2024-04-25 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-287: Improper Authentication
CWE-603: Use of Client-Side Authentication

CAPEC

References (1)

URL	Tag	Source
https://www.us-cert.gov/ics/advisories/icsa-20-070-06	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
Rockwellautomation Search vendor "Rockwellautomation"	Micrologix 1400 A Firmware Search vendor "Rockwellautomation" for product "Micrologix 1400 A Firmware"	*	-	Affected	in	Rockwellautomation Search vendor "Rockwellautomation"	Micrologix 1400 Search vendor "Rockwellautomation" for product "Micrologix 1400"	-	-	Safe
Rockwellautomation Search vendor "Rockwellautomation"	Micrologix 1400 B Firmware Search vendor "Rockwellautomation" for product "Micrologix 1400 B Firmware"	<= 21.001 Search vendor "Rockwellautomation" for product "Micrologix 1400 B Firmware" and version " <= 21.001"	-	Affected	in	Rockwellautomation Search vendor "Rockwellautomation"	Micrologix 1400 Search vendor "Rockwellautomation" for product "Micrologix 1400"	-	-	Safe
Rockwellautomation Search vendor "Rockwellautomation"	Micrologix 1100 Firmware Search vendor "Rockwellautomation" for product "Micrologix 1100 Firmware"	*	-	Affected	in	Rockwellautomation Search vendor "Rockwellautomation"	Micrologix 1100 Search vendor "Rockwellautomation" for product "Micrologix 1100"	-	-	Safe
Rockwellautomation Search vendor "Rockwellautomation"		Rslogix 500 Search vendor "Rockwellautomation" for product "Rslogix 500"				<= 12.001 Search vendor "Rockwellautomation" for product "Rslogix 500" and version " <= 12.001"		-		Affected