CVE-2020-7543 HIGH

Published: 2020-12-11 | Last Modified: 2024-11-21 | Status: Modified

Description

A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in Modicon M580, Modicon M340, Legacy Controllers Modicon Quantum & Modicon Premium (see security notifications for affected versions), that could cause denial of service when a specially crafted Read Physical Memory request over Modbus is sent to the controller.

Additional Descriptions (1)

Una CWE-754: Se presenta una vulnerabilidad de Comprobación Inapropiada de Condiciones Inusuales o Excepcionales en Modicon M580, Modicon M340, Legacy Controllers Modicon Quantum & Modicon Premium (consulte las notificaciones de seguridad para las versiones afectadas), que podría causar una denegación de servicio cuando una petición Read Physical Memory especialmente diseñada a través de Modbus es enviada hacia el controlador

CVSS Metrics

Base Score: 7.5 (HIGH)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector	NETWORK
Attack Complexity	LOW
Privileges Required	NONE
User Interaction	NONE
Scope	UNCHANGED
Confidentiality Impact	NONE
Integrity Impact	NONE
Availability Impact	HIGH

Source: [email protected]

Type: Primary

Exploitability Score: 3.9

Impact Score: 3.6

Base Score: 5.0 (MEDIUM)

AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector	NETWORK
Access Complexity	LOW
Authentication	NONE
Confidentiality Impact	NONE
Integrity Impact	NONE
Availability Impact	PARTIAL

Source: [email protected]

Type: Primary

Exploitability Score: 10.0

Impact Score: 2.9

Weaknesses

Source	Type	Description
[email protected]	Secondary	en CWE-754

Affected Products

Vendor	Product	Version	Update	Type
schneider-electric	modicon_m580_bmep584040_firmware	*	<built-in method update of dict object at 0x7e60bae0eb40>	Operating System
schneider-electric	modicon_m580_bmep582040_firmware	*	<built-in method update of dict object at 0x7e60ba0ad580>	Operating System
schneider-electric	modicon_m580_bmep586040_firmware	*	<built-in method update of dict object at 0x7e60ba0afe80>	Operating System
schneider-electric	modicon_m580_bmep585040_firmware	*	<built-in method update of dict object at 0x7e60eb2da700>	Operating System
schneider-electric	modicon_m580_bmep582020_firmware	*	<built-in method update of dict object at 0x7e60bae49080>	Operating System
schneider-electric	modicon_m580_bmep581020_firmware	*	<built-in method update of dict object at 0x7e60bae4a080>	Operating System
schneider-electric	modicon_m580_bmep584020_firmware	*	<built-in method update of dict object at 0x7e60ba0acf80>	Operating System
schneider-electric	modicon_m580_bmep583040_firmware	*	<built-in method update of dict object at 0x7e60e884ec00>	Operating System
schneider-electric	modicon_m580_bmep583020_firmware	*	<built-in method update of dict object at 0x7e60bae48e00>	Operating System
schneider-electric	modicon_m340_bmxp341000_firmware	*	<built-in method update of dict object at 0x7e60bae4bf00>	Operating System
schneider-electric	modicon_m340_bmxp342000_firmware	*	<built-in method update of dict object at 0x7e60bae4bfc0>	Operating System
schneider-electric	modicon_m340_bmxp3420102_firmware	*	<built-in method update of dict object at 0x7e60ba0acac0>	Operating System
schneider-electric	modicon_m340_bmxp3420102cl_firmware	*	<built-in method update of dict object at 0x7e60bae49480>	Operating System
schneider-electric	modicon_m340_bmxp342020_firmware	*	<built-in method update of dict object at 0x7e60bae4b7c0>	Operating System
schneider-electric	modicon_m340_bmxp3420302_firmware	*	<built-in method update of dict object at 0x7e60ba0af500>	Operating System
schneider-electric	modicon_m340_bmxp3420302cl_firmware	*	<built-in method update of dict object at 0x7e60ba0ac7c0>	Operating System

Affected Configurations

Operator: OR

Vulnerable	CPE
Yes	`cpe:2.3:o:schneider-electric:modicon_m580_bmep584040_firmware::::::::`

Operator: OR

Vulnerable	CPE
No	`cpe:2.3:h:schneider-electric:modicon_m580_bmep584040:-:::::::*`

Operator: OR

Vulnerable	CPE
Yes	`cpe:2.3:o:schneider-electric:modicon_m580_bmep582040_firmware::::::::`

Operator: OR

Vulnerable	CPE
No	`cpe:2.3:h:schneider-electric:modicon_m580_bmep582040:-:::::::*`

Operator: OR

Vulnerable	CPE
Yes	`cpe:2.3:o:schneider-electric:modicon_m580_bmep586040_firmware::::::::`

Operator: OR

Vulnerable	CPE
No	`cpe:2.3:h:schneider-electric:modicon_m580_bmep586040:-:::::::*`

Operator: OR

Vulnerable	CPE
Yes	`cpe:2.3:o:schneider-electric:modicon_m580_bmep585040_firmware::::::::`

Operator: OR

Vulnerable	CPE
No	`cpe:2.3:h:schneider-electric:modicon_m580_bmep585040:-:::::::*`

Operator: OR

Vulnerable	CPE
Yes	`cpe:2.3:o:schneider-electric:modicon_m580_bmep582020_firmware::::::::`

Operator: OR

Vulnerable	CPE
No	`cpe:2.3:h:schneider-electric:modicon_m580_bmep582020:-:::::::*`

Operator: OR

Vulnerable	CPE
Yes	`cpe:2.3:o:schneider-electric:modicon_m580_bmep581020_firmware::::::::`

Operator: OR

Vulnerable	CPE
No	`cpe:2.3:h:schneider-electric:modicon_m580_bmep581020:-:::::::*`

Operator: OR

Vulnerable	CPE
Yes	`cpe:2.3:o:schneider-electric:modicon_m580_bmep584020_firmware::::::::`

Operator: OR

Vulnerable	CPE
No	`cpe:2.3:h:schneider-electric:modicon_m580_bmep584020:-:::::::*`

Operator: OR

Vulnerable	CPE
Yes	`cpe:2.3:o:schneider-electric:modicon_m580_bmep583040_firmware::::::::`

Operator: OR

Vulnerable	CPE
No	`cpe:2.3:h:schneider-electric:modicon_m580_bmep583040:-:::::::*`

Operator: OR

Vulnerable	CPE
Yes	`cpe:2.3:o:schneider-electric:modicon_m580_bmep583020_firmware::::::::`

Operator: OR

Vulnerable	CPE
No	`cpe:2.3:h:schneider-electric:modicon_m580_bmep583020:-:::::::*`

Operator: OR

Vulnerable	CPE
Yes	`cpe:2.3:o:schneider-electric:modicon_m340_bmxp341000_firmware::::::::`

Operator: OR

Vulnerable	CPE
No	`cpe:2.3:h:schneider-electric:modicon_m340_bmxp341000:-:::::::*`

Operator: OR

Vulnerable	CPE
Yes	`cpe:2.3:o:schneider-electric:modicon_m340_bmxp342000_firmware::::::::`

Operator: OR

Vulnerable	CPE
No	`cpe:2.3:h:schneider-electric:modicon_m340_bmxp342000:-:::::::*`

Operator: OR

Vulnerable	CPE
Yes	`cpe:2.3:o:schneider-electric:modicon_m340_bmxp3420102_firmware::::::::`

Operator: OR

Vulnerable	CPE
No	`cpe:2.3:h:schneider-electric:modicon_m340_bmxp3420102:-:::::::*`

Operator: OR

Vulnerable	CPE
Yes	`cpe:2.3:o:schneider-electric:modicon_m340_bmxp3420102cl_firmware::::::::`

Operator: OR

Vulnerable	CPE
No	`cpe:2.3:h:schneider-electric:modicon_m340_bmxp3420102cl:-:::::::*`

Operator: OR

Vulnerable	CPE
Yes	`cpe:2.3:o:schneider-electric:modicon_m340_bmxp342020_firmware::::::::`

Operator: OR

Vulnerable	CPE
No	`cpe:2.3:h:schneider-electric:modicon_m340_bmxp342020:-:::::::*`

Operator: OR

Vulnerable	CPE
Yes	`cpe:2.3:o:schneider-electric:modicon_m340_bmxp3420302_firmware::::::::`

Operator: OR

Vulnerable	CPE
No	`cpe:2.3:h:schneider-electric:modicon_m340_bmxp3420302:-:::::::*`

Operator: OR

Vulnerable	CPE
Yes	`cpe:2.3:o:schneider-electric:modicon_m340_bmxp3420302cl_firmware::::::::`

Operator: OR

Vulnerable	CPE
No	`cpe:2.3:h:schneider-electric:modicon_m340_bmxp3420302cl:-:::::::*`

References

https://www.se.com/ww/en/download/document/SEVD-2020-343-08/
Source: [email protected]

Vendor Advisory
https://www.se.com/ww/en/download/document/SEVD-2020-343-08/
Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory