Schneider Electric Modicon Uncontrolled Resource Consumption (CVE-2022-22724)

high Tenable OT Security Plugin ID 500620

Synopsis

The remote OT asset is affected by a vulnerability.

Description

A CWE-400: Uncontrolled Resource Consumption vulnerability exists that could cause a denial of service on ports 80 (HTTP) and 502 (Modbus), when sending a large number of TCP RST or FIN packets to any open TCP port of the PLC. Affected Product: Modicon M340 CPUs: BMXP34 (All Versions) 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: 500620

Version: 1.4

Type: remote

Family: Tenable.ot

Published: 3/21/2022

Updated: 11/3/2023

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-2022-22724

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_m340_bmxp341000_firmware:-, cpe:/o:schneider-electric:modicon_m340_bmxp342000_firmware:-, cpe:/o:schneider-electric:modicon_m340_bmxp342010_firmware:-, cpe:/o:schneider-electric:modicon_m340_bmxp3420102_firmware:-, cpe:/o:schneider-electric:modicon_m340_bmxp342030_firmware:-, cpe:/o:schneider-electric:modicon_m340_bmxp3420302_firmware:-

Required KB Items: Tenable.ot/Schneider

Exploit Ease: No known exploits are available

Patch Publication Date: 2/4/2022

Vulnerability Publication Date: 2/4/2022

Reference Information

CVE: CVE-2022-22724

CWE: 400

Detections

Analytics