Detections
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Wiesemann & Theis ComServer Series Missing Authentication for Critical Function (CVE-2022-42785)

critical Tenable OT Security Plugin ID 502832

Synopsis

The remote OT asset is affected by a vulnerability.

Description

Multiple W&T products of the ComServer Series are prone to an authentication bypass. An unathenticated remote attacker, can log in without knowledge of the password by crafting a modified HTTP GET Request.

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/de/advisories/VDE-2022-043/

Plugin Details

Severity: Critical

ID: 502832

Version: 1.2

Type: remote

Family: Tenable.ot

Published: 1/30/2025

Updated: 1/31/2025

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2022-42785

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: cpe:/o:wut:com-server_20ma_firmware, cpe:/o:wut:com-server_highspeed_100basefx_firmware, cpe:/o:wut:com-server_highspeed_compact_firmware, cpe:/o:wut:com-server_highspeed_office_1port_firmware, cpe:/o:wut:com-server_highspeed_19%22_4port_firmware, cpe:/o:wut:com-server_highspeed_industry_firmware, cpe:/o:wut:com-server_highspeed_poe_firmware, cpe:/o:wut:com-server_highspeed_100baselx_firmware, cpe:/o:wut:com-server_highspeed_isolated_firmware, cpe:/o:wut:com-server_highspeed_poe_3x_isolated_firmware, cpe:/o:wut:com-server_highspeed_ul_firmware, cpe:/o:wut:com-server_highspeed_office_4port_firmware, cpe:/o:wut:com-server_highspeed_lc_firmware, cpe:/o:wut:com-server_highspeed_19%22_1port_firmware, cpe:/o:wut:com-server_highspeed_oem_firmware

Required KB Items: Tenable.ot/WiesemannTheis

Exploit Ease: No known exploits are available

Patch Publication Date: 11/15/2022

Vulnerability Publication Date: 11/15/2022

Reference Information

CVE: CVE-2022-42785

CWE: 306