IM
IronMonkey Threat Research

CVE-2021-22699 HIGH

Published: 2021-05-26 | Last Modified: 2024-11-21 | Status: Modified

Description

Improper Input Validation vulnerability exists in Modicon M241/M251 logic controllers firmware prior to V5.1.9.1 that could cause denial of service when specific crafted requests are sent to the controller over HTTP.

Additional Descriptions (1)

Se presenta una vulnerabilidad de Comprobación Inapropiada de Entrada en los controladores lógicos Modicon M241/M251 versiones del firmware anteriores a V5.1.9.1, que podría causar una denegación de servicio cuando peticiones específicas diseñadas son enviadas al controlador a través de HTTP

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: 7.8 (HIGH)

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

Access VectorNETWORK
Access ComplexityLOW
AuthenticationNONE
Confidentiality ImpactNONE
Integrity ImpactNONE
Availability ImpactCOMPLETE

Source: [email protected]

Type: Primary

Exploitability Score: 10.0

Impact Score: 6.9

Weaknesses

Source Type Description
[email protected] Secondary
en CWE-20

Affected Products

Vendor Product Version Update Type
schneider-electric modicon_m241_firmware * <built-in method update of dict object at 0x7e60e8343a00> Operating System
schneider-electric modicon_m251_firmware * <built-in method update of dict object at 0x7e60ba9beac0> Operating System

Affected Configurations

Operator: OR

Vulnerable CPE
Yes cpe:2.3:o:schneider-electric:modicon_m241_firmware:*:*:*:*:*:*:*:*

Operator: OR

Vulnerable CPE
No cpe:2.3:h:schneider-electric:modicon_m241:-:*:*:*:*:*:*:*

Operator: OR

Vulnerable CPE
Yes cpe:2.3:o:schneider-electric:modicon_m251_firmware:*:*:*:*:*:*:*:*

Operator: OR

Vulnerable CPE
No cpe:2.3:h:schneider-electric:modicon_m251:-:*:*:*:*:*:*:*
Notification
Message here