CVE-2019-6843

Severity Score

4.9

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A CWE-755: Improper Handling of Exceptional Conditions vulnerability exists in Modicon M580 with firmware (version prior to V3.10), Modicon M340 (all firmware versions), and Modicon BMxCRA and 140CRA modules (all firmware versions), which could cause a Denial of Service attack on the PLC when upgrading the controller with an empty firmware package using FTP protocol.

Existe una vulnerabilidad CWE-755: Manejo inadecuado de condiciones excepcionales en Modicon M580 con firmware (versión anterior a V3.10), Modicon M340 (todas las versiones de firmware) y módulos Modicon BMxCRA y 140CRA (todas las versiones de firmware), que podría causar un ataque de denegación de servicio en el PLC al actualizar el controlador con un paquete de firmware vacío utilizando el protocolo FTP

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-01-25 CVE Reserved
2019-10-29 CVE Published
2023-03-08 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-755: Improper Handling of Exceptional Conditions

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.se.com/ww/en/download/document/SEVD-2019-281-02	2022-02-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Schneider-electric Search vendor "Schneider-electric"	Modicon M580 Firmware Search vendor "Schneider-electric" for product "Modicon M580 Firmware"	*	-	Affected	in	Schneider-electric Search vendor "Schneider-electric"	Modicon M580 Search vendor "Schneider-electric" for product "Modicon M580"	-	-	Safe
Schneider-electric Search vendor "Schneider-electric"	Modicon M340 Firmware Search vendor "Schneider-electric" for product "Modicon M340 Firmware"	*	-	Affected	in	Schneider-electric Search vendor "Schneider-electric"	Modicon M340 Search vendor "Schneider-electric" for product "Modicon M340"	-	-	Safe
Schneider-electric Search vendor "Schneider-electric"	Modicon Bmxcra Firmware Search vendor "Schneider-electric" for product "Modicon Bmxcra Firmware"	*	-	Affected	in	Schneider-electric Search vendor "Schneider-electric"	Modicon Bmxcra Search vendor "Schneider-electric" for product "Modicon Bmxcra"	-	-	Safe
Schneider-electric Search vendor "Schneider-electric"	Modicon 140cra Firmware Search vendor "Schneider-electric" for product "Modicon 140cra Firmware"	*	-	Affected	in	Schneider-electric Search vendor "Schneider-electric"	Modicon 140cra Search vendor "Schneider-electric" for product "Modicon 140cra"	-	-	Safe