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Wiesemann & Theis ComServer Series Authentication Bypass by Spoofing (CVE-2022-4098)

high Tenable OT Security Plugin ID 502833

Synopsis

The remote OT asset is affected by a vulnerability.

Description

Multiple Wiesemann&Theis products of the ComServer Series are prone to an authentication bypass through IP spoofing. After a user logged in to the WBM of the Com-Server an unauthenticated attacker in the same subnet can obtain the session ID and through IP spoofing change arbitrary settings by crafting modified HTTP Get requests. This may result in a complete takeover of the device.

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-2022-057/

Plugin Details

Severity: High

ID: 502833

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: High

Base Score: 8.3

Temporal Score: 6.1

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

CVSS Score Source: CVE-2022-4098

CVSS v3

Risk Factor: High

Base Score: 8

Temporal Score: 7

Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:R/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: 12/13/2022

Vulnerability Publication Date: 12/13/2022

Reference Information

CVE: CVE-2022-4098

CWE: 290