Schneider Electric Modicon Improper Handling of Exceptional Conditions (CVE-2018-7852)

high Tenable OT Security Plugin ID 500324

Synopsis

The remote OT asset is affected by a vulnerability.

Description

A CWE-248: Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause denial of service when an invalid private command parameter is sent to the controller over Modbus.

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: High

ID: 500324

Version: 1.6

Type: remote

Family: Tenable.ot

Published: 2/7/2022

Updated: 1/24/2024

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2018-7852

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:schneider-electric:modicon_m580_series_firmware, cpe:/o:schneider-electric:modicon_m340_series_firmware, cpe:/o:schneider-electric:modicon_quantum_firmware, cpe:/o:schneider-electric:modicon_premium_firmware

Required KB Items: Tenable.ot/Schneider

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/22/2019

Vulnerability Publication Date: 5/22/2019

Reference Information

CVE: CVE-2018-7852

CWE: 755

Detections

Analytics