Wago Series 750-3x/-8x prone to MODBUS server DoS (CVE-2023-1150)

high Tenable OT Security Plugin ID 501227

Synopsis

The remote OT asset is affected by a vulnerability.

Description

Uncontrolled resource consumption in Series WAGO 750-3x/-8x products may allow an unauthenticated remote attacker to DoS the MODBUS server with specially crafted packets.

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://cert.vde.com/en/advisories/VDE-2023-005/

Plugin Details

Severity: High

ID: 501227

Version: 1.2

Type: remote

Family: Tenable.ot

Published: 7/11/2023

Updated: 8/24/2023

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2023-1150

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:wago:750-362_firmware, cpe:/o:wago:750-823_firmware, cpe:/o:wago:750-363_firmware, cpe:/o:wago:750-890%2f040-000_firmware, cpe:/o:wago:750-890%2f025-000_firmware, cpe:/o:wago:750-890%2f025-001_firmware, cpe:/o:wago:750-891_firmware, cpe:/o:wago:750-890%2f025-002_firmware, cpe:/o:wago:750-893_firmware, cpe:/o:wago:750-362%2f040-000_firmware, cpe:/o:wago:750-363%2f040-000_firmware, cpe:/o:wago:750-890_firmware, cpe:/o:wago:750-364%2f040-010_firmware, cpe:/o:wago:750-862_firmware, cpe:/o:wago:750-832_firmware, cpe:/o:wago:750-362%2f000-001_firmware, cpe:/o:wago:750-365%2f040-010_firmware, cpe:/o:wago:750-832%2f000-002_firmware

Required KB Items: Tenable.ot/Wago

Exploit Ease: No known exploits are available

Patch Publication Date: 6/26/2023

Vulnerability Publication Date: 6/26/2023

Reference Information

CVE: CVE-2023-1150

CWE: 400