Detections
Analytics

Schneider Electric Modicon Improper Input Validation (CVE-2021-22800)

high Tenable OT Security Plugin ID 500604

Synopsis

The remote OT asset is affected by a vulnerability.

Description

A CWE-20: Improper Input Validation vulnerability exists that could cause a Denial of Service when a crafted packet is sent to the controller over network port 1105/TCP. Affected Product: Modicon M218 Logic Controller (V5.1.0.6 and prior) This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information.

 - A CWE-20: Improper Input Validation vulnerability exists that could cause a Denial of Service when a crafted packet is sent to the controller over network port 1105/TCP. Affected Product: Modicon M218 Logic Controller (V5.1.0.6 and prior) (CVE-2021-22800)

Solution

Refer to the vendor advisory.

See Also

http://www.nessus.org/u?7f0d7c4d

Plugin Details

Severity: High

ID: 500604

Version: 1.7

Type: remote

Family: Tenable.ot

Published: 2/18/2022

Updated: 1/24/2024

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2021-22800

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:schneider-electric:modicon_m218_series_firmware

Required KB Items: Tenable.ot/Schneider

Exploit Ease: No known exploits are available

Patch Publication Date: 2/11/2022

Vulnerability Publication Date: 2/11/2022

Reference Information

CVE: CVE-2021-22800

CWE: 20