Schneider-electric Modicon Improper Input Validation

high Tenable.ot Plugin ID 500446
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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.

Solution

Refer to vendor advisory for Security Updates

See Also

https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-130-05

Plugin Details

Severity: High

ID: 500446

Version: 1.0

Type: local

Family: SCADA

Published: 8/10/2021

Updated: 8/10/2021

Risk Information

CVSS Score Source: CVE-2021-22699

CVSS v2

Risk Factor: High

Base Score: 7.8

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

CVSS v3

Risk Factor: High

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vulnerability Information

CPE: cpe:2.3:o:schneider-electric:modicon_m241_firmware:*:*:*:*:*:*:*:*, cpe:2.3:o:schneider-electric:modicon_m251_firmware:*:*:*:*:*:*:*:*

Patch Publication Date: 5/26/2021

Vulnerability Publication Date: 5/26/2021

Reference Information

CVE: CVE-2021-22699