CVE-2018-7842 CRITICAL

Published: 2019-05-22 | Last Modified: 2026-06-17 | Status: Modified

Description

A CWE-290: Authentication Bypass by Spoofing vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause an elevation of privilege by conducting a brute force attack on Modbus parameters sent to the controller.

Additional Descriptions (1)

CWE-290: Existe una vulnerabilidad de Omisión de Autenticación por suplantación de identidad en todas las versiones de Modicon M580, Modicon M340, Modicon Quantum y Modicon Premium, que podría generar una elevación de privilegios al realizar un ataque de fuerza bruta en los parámetros de Modbus enviados al controlador.

CVSS Metrics

Base Score: 9.8 (CRITICAL)

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

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

Source: [email protected]

Type: Primary

Exploitability Score: 3.9

Impact Score: 5.9

Base Score: 7.5 (HIGH)

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

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

Source: [email protected]

Type: Primary

Exploitability Score: 10.0

Impact Score: 6.4

Weaknesses

Source	Type	Description
[email protected]	Primary	en CWE-290

Affected Products

Vendor	Product	Version	Update	Type
schneider-electric	modicon_m580_firmware	*	<built-in method update of dict object at 0x7e60bbd63a00>	Operating System
schneider-electric	modicon_m340_firmware	*	<built-in method update of dict object at 0x7e60bbd60c80>	Operating System
schneider-electric	modicon_quantum_firmware	*	<built-in method update of dict object at 0x7e60bbd61200>	Operating System
schneider-electric	modicon_premium_firmware	*	<built-in method update of dict object at 0x7e6112303880>	Operating System

Affected Configurations

Operator: OR

Vulnerable	CPE
Yes	`cpe:2.3:o:schneider-electric:modicon_m580_firmware::::::::`

Operator: OR

Vulnerable	CPE
No	`cpe:2.3:h:schneider-electric:modicon_m580:-:::::::*`

Operator: OR

Vulnerable	CPE
Yes	`cpe:2.3:o:schneider-electric:modicon_m340_firmware::::::::`

Operator: OR

Vulnerable	CPE
No	`cpe:2.3:h:schneider-electric:modicon_m340:-:::::::*`

Operator: OR

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

Operator: OR

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

Operator: OR

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

Operator: OR

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

References

https://www.schneider-electric.com/en/download/document/SEVD-2019-134-11/
Source: [email protected]

Vendor Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0741
Source: [email protected]

Exploit Third Party Advisory
https://www.schneider-electric.com/en/download/document/SEVD-2019-134-11/
Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0741
Source: af854a3a-2127-422b-91ae-364da2661108

Exploit Third Party Advisory