Detections
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Wago 750-8XX series Improper Authentication (CVE-2020-12505)

critical Tenable OT Security Plugin ID 500666

Synopsis

The remote OT asset is affected by a vulnerability.

Description

Improper Authentication vulnerability in WAGO 750-8XX series with FW version <= FW07 allows an attacker to change some special parameters without authentication. This issue affects: WAGO 750-852, WAGO 750-880/xxx-xxx, WAGO 750-881, WAGO 750-831/xxx-xxx, WAGO 750-882, WAGO 750-885/xxx-xxx, WAGO 750-889 in versions FW07 and below.

 - Improper Authentication vulnerability in WAGO 750-8XX series with FW version <= FW07 allows an attacker to change some special parameters without authentication. This issue affects: WAGO 750-852, WAGO 750-880/xxx- xxx, WAGO 750-881, WAGO 750-831/xxx-xxx, WAGO 750-882, WAGO 750-885/xxx-xxx, WAGO 750-889 in versions FW07 and below. (CVE-2020-12505)

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-us/advisories/vde-2020-027

Plugin Details

Severity: Critical

ID: 500666

Version: 1.9

Type: remote

Family: Tenable.ot

Published: 7/21/2022

Updated: 12/5/2024

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2020-12505

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

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

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

Vulnerability Information

CPE: cpe:/o:wago:750-852_firmware, cpe:/o:wago:750-880_firmware, cpe:/o:wago:750-831_firmware, cpe:/o:wago:750-889_firmware, cpe:/o:wago:750-885_firmware, cpe:/o:wago:750-882_firmware, cpe:/o:wago:750-881_firmware

Required KB Items: Tenable.ot/Wago

Exploit Ease: No known exploits are available

Patch Publication Date: 9/30/2020

Vulnerability Publication Date: 9/30/2020

Reference Information

CVE: CVE-2020-12505

CWE: 306