IM
IronMonkey Threat Research

CVE-2018-7843 HIGH

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

Description

A CWE-248: Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause denial of service when reading memory blocks with an invalid data size or with an invalid data offset in the controller over Modbus.

Additional Descriptions (1)

CWE-248: Existe una vulnerabilidad de Excepción no Detectada en todas las versiones de Modicon M580, Modicon M340, Modicon Quantum y Modicon Premium, lo que podría generar una Denegación de Servicio cuando se lee bloques de memoria con un tamaño de datos no válido o con un desplazamiento de datos no válido en el controlador sobre protocolo Modbus.

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 VectorNETWORK
Attack ComplexityLOW
Privileges RequiredNONE
User InteractionNONE
ScopeUNCHANGED
Confidentiality ImpactNONE
Integrity ImpactNONE
Availability ImpactHIGH

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 VectorNETWORK
Access ComplexityLOW
AuthenticationNONE
Confidentiality ImpactNONE
Integrity ImpactNONE
Availability ImpactPARTIAL

Source: [email protected]

Type: Primary

Exploitability Score: 10.0

Impact Score: 2.9

Weaknesses

Source Type Description
[email protected] Primary
en CWE-125

Affected Products

Vendor Product Version Update Type
schneider-electric modicon_m580_firmware * <built-in method update of dict object at 0x7e6111c1d400> Operating System
schneider-electric modicon_m340_firmware * <built-in method update of dict object at 0x7e6110f85a80> Operating System
schneider-electric modicon_quantum_firmware * <built-in method update of dict object at 0x7e6110f85cc0> Operating System
schneider-electric modicon_premium_firmware * <built-in method update of dict object at 0x7e613c3ce040> 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

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