Detections
Analytics

Schneider Electric Modicon Insufficient Verification of Data Authenticity (CVE-2020-7487)

critical Tenable OT Security Plugin ID 500854

Synopsis

The remote OT asset is affected by a vulnerability.

Description

A CWE-345: Insufficient Verification of Data Authenticity vulnerability exists which could allow the attacker to execute malicious code on the Modicon M218, M241, M251, and M258 controllers.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

Refer to the vendor advisory.

See Also

https://www.se.com/ww/en/download/document/SEVD-2020-105-02

Plugin Details

Severity: Critical

ID: 500854

Version: 1.4

Type: remote

Family: Tenable.ot

Published: 3/1/2023

Updated: 1/24/2024

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2020-7487

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: cpe:/o:schneider-electric:modicon_m218_series_firmware, cpe:/o:schneider-electric:modicon_m241_series_firmware, cpe:/o:schneider-electric:modicon_m251_series_firmware, cpe:/o:schneider-electric:modicon_m258_series_firmware

Required KB Items: Tenable.ot/Schneider

Exploit Ease: No known exploits are available

Patch Publication Date: 4/22/2020

Vulnerability Publication Date: 4/22/2020

Reference Information

CVE: CVE-2020-7487

CWE: 345