Siemens in SCALANCE Products (CVE-2022-46144)

medium Tenable OT Security Plugin ID 501595

Synopsis

The remote OT asset is affected by a vulnerability.

Description

A vulnerability has been identified in SCALANCE SC622-2C (All versions < V2.3), SCALANCE SC622-2C (All versions >= 2.3 < V3.0), SCALANCE SC626-2C (All versions < V2.3), SCALANCE SC626-2C (All versions >= 2.3 < V3.0), SCALANCE SC632-2C (All versions < V2.3), SCALANCE SC632-2C (All versions >= 2.3 < V3.0), SCALANCE SC636-2C (All versions < V2.3), SCALANCE SC636-2C (All versions >= 2.3 < V3.0), SCALANCE SC642-2C (All versions < V2.3), SCALANCE SC642-2C (All versions >= 2.3 < V3.0), SCALANCE SC646-2C (All versions < V2.3), SCALANCE SC646-2C (All versions >= 2.3 < V3.0). Affected devices do not properly process CLI commands after a user forcefully quitted the SSH connection. This could allow an authenticated attacker to make the CLI via SSH or serial interface irresponsive.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

The following text was originally created by the Cybersecurity and Infrastructure Security Agency (CISA). The original can be found at CISA.gov.

Siemens recommends updating to the latest version of its software where available:

- SCALANCE SC622-2C (6GK5622-2GS00-2AC2): Update to V2.3 or later
- SCALANCE SC622-2C (6GK5622-2GS00-2AC2) (Specifically CVE-2022-34821, CVE-2022-46142, CVE-2022-46143, CVE-2022-46144):
Update to V3.0 or later
- SCALANCE SC626-2C (6GK5626-2GS00-2AC2): Update to V2.3 or later
- SCALANCE SC626-2C (6GK5626-2GS00-2AC2) (Specifically for CVE-2022-34821, CVE-2022-46142, CVE-2022-46143, CVE-2022-46144): Update to V3.0 or later
- SCALANCE SC632-2C (6GK5632-2GS00-2AC2): Update to V2.3 or later
- SCALANCE SC632-2C (6GK5632-2GS00-2AC2) (Specifically for CVE-2022-34821, CVE-2022-46142, CVE-2022-46143, CVE-2022-46144): Update to V3.0 or later
- SCALANCE SC636-2C (6GK5636-2GS00-2AC2): Update to V2.3 or later
- SCALANCE SC636-2C (6GK5636-2GS00-2AC2) (Specifically for CVE-2022-34821, CVE-2022-46142, CVE-2022-46143, CVE-2022-46144): Update to V3.0 or later
- SCALANCE SC642-2C (6GK5642-2GS00-2AC2): Update to V2.3 or later
- SCALANCE SC642-2C (6GK5642-2GS00-2AC2) (Specifically for CVE-2022-34821, CVE-2022-46142, CVE-2022-46143, CVE-2022-46144): Update to V3.0 or later
- SCALANCE SC646-2C (6GK5646-2GS00-2AC2): Update to V2.3 or later
- SCALANCE SC646-2C (6GK5646-2GS00-2AC2) (Specifically for CVE-2022-34821, CVE-2022-46142, CVE-2022-46143, CVE-2022-46144): Update to V3.0 or later

As a general security measure, Siemens recommends protecting network access to devices with appropriate mechanisms. To operate the devices in a protected IT environment, Siemens recommends configuring the environment according to Siemens’ operational guidelines for industrial security and following recommendations in the product manuals.

Additional information on industrial security by Siemens can be found on the Siemens industrial security webpage

For more information, see the associated Siemens security advisory SSA-413565 in HTML and CSAF.

Plugin Details

Severity: Medium

ID: 501595

Version: 1.4

Type: remote

Family: Tenable.ot

Published: 8/3/2023

Updated: 3/10/2025

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2022-46144

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/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:siemens:scalance_sc646-2c_firmware:3.0, cpe:/o:siemens:scalance_sc642-2c_firmware:2.3, cpe:/o:siemens:scalance_wum766-1_%28usa%29_firmware:2.0.0, cpe:/o:siemens:scalance_wam766-1_eec_%28us%29_firmware:2.0.0, cpe:/o:siemens:scalance_sc646-2c_firmware:2.3, cpe:/o:siemens:scalance_wam766-1_firmware:2.0.0, cpe:/o:siemens:scalance_wam766-1_%28us%29_firmware:2.0.0, cpe:/o:siemens:scalance_sc636-2c_firmware:2.3, cpe:/o:siemens:scalance_sc632-2c_firmware:3.0, cpe:/o:siemens:scalance_sc632-2c_firmware:2.3, cpe:/o:siemens:scalance_sc642-2c_firmware:3.0, cpe:/o:siemens:scalance_sc622-2c_firmware:3.0, cpe:/o:siemens:scalance_wam766-1_eec_firmware:2.0.0, cpe:/o:siemens:scalance_wam763-1_firmware:2.0.0, cpe:/o:siemens:scalance_sc622-2c_firmware:2.3, cpe:/o:siemens:scalance_sc636-2c_firmware:3.0, cpe:/o:siemens:scalance_sc626-2c_firmware:3.0, cpe:/o:siemens:scalance_wum766-1_firmware:2.0.0, cpe:/o:siemens:scalance_sc626-2c_firmware:2.3, cpe:/o:siemens:scalance_wum763-1_firmware:2.0.0

Required KB Items: Tenable.ot/Siemens

Exploit Ease: No known exploits are available

Patch Publication Date: 12/13/2022

Vulnerability Publication Date: 12/13/2022

Reference Information

CVE: CVE-2022-46144

CWE: 664

ICSA: 22-349-04

Detections

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