Schneider Electric Modicon M340, MC80, and Momentum Unity M1E Improper Input Validation (CVE-2024-8936)

medium Tenable OT Security Plugin ID 502686

Synopsis

The remote OT asset is affected by a vulnerability.

Description

An Input Validation vulnerability exists that could lead to loss of confidentiality of controller memory after a successful Man-In-The-Middle attack followed by sending a crafted Modbus function call used to tamper with memory.

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.

Plugin Details

Severity: Medium

ID: 502686

Version: 1.2

Type: remote

Family: Tenable.ot

Published: 11/28/2024

Updated: 11/29/2024

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 5.0

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

Vulnerability Information

CPE: cpe:/o:schneider-electric:modicon_m340

Required KB Items: Tenable.ot/Schneider

Exploit Ease: No known exploits are available

Patch Publication Date: 11/12/2024

Vulnerability Publication Date: 11/12/2024

Reference Information

CVE: CVE-2024-8936

CWE: 20

ICSA: 24-326-04

Detections

Analytics