Detections
Analytics

Schneider Electric EcoStruxure Machine Expert Injection (CVE-2020-7489)

critical Tenable OT Security Plugin ID 500863

Synopsis

The remote OT asset is affected by a vulnerability.

Description

A CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') vulnerability exists on EcoStruxure Machine Expert Basic or SoMachine Basic programming software (versions in security notification). The result of this vulnerability, DLL substitution, could allow the transference of malicious code to the controller.

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-2020-105-01

Plugin Details

Severity: Critical

ID: 500863

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-2020-7489

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_m100_series_firmware, cpe:/o:schneider-electric:modicon_m200_series_firmware, cpe:/o:schneider-electric:modicon_m221_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-2020-7489

CWE: 74