Siemens SCALANCE W1750D Improper Input Validation (CVE-2022-37895)

medium Tenable OT Security Plugin ID 501015

Synopsis

The remote OT asset is affected by a vulnerability.

Description

An unauthenticated Denial of Service (DoS) vulnerability exists in the handling of certain SSID strings by Aruba InstantOS and ArubaOS 10.
Successful exploitation of this vulnerability results in the ability to interrupt the normal operation of the affected AP of Aruba InstantOS 6.4.x: 6.4.4.8-4.2.4.20 and below; Aruba InstantOS 6.5.x:
6.5.4.23 and below; Aruba InstantOS 8.6.x: 8.6.0.18 and below; Aruba InstantOS 8.7.x: 8.7.1.9 and below; Aruba InstantOS 8.10.x: 8.10.0.1 and below; ArubaOS 10.3.x: 10.3.1.0 and below; Aruba has released upgrades for Aruba InstantOS that address this security vulnerability.

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 identified the following specific workarounds and mitigations to reduce risk:

- CVE-2022-37885, CVE-2022-37886, CVE-2022-37887, CVE-2022-37888, and CVE-2022-37889: Enable CPSec via the cluster- security command.
- CVE-2022-37890, CVE-2022-37891, CVE-2022-37892, CVE-2022-37895, and CVE-2022-37896: Restrict the web-based management interface to a dedicated layer 2 segment/VLAN and/or control the interface by firewall policies at layer 3 and above.
- CVE-2022-37893: Restrict the command line interface to a dedicated layer 2 segment/VLAN and/or control the interface by firewall policies at layer 3 and above.

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

Additional information on Industrial Security by Siemens can be found at the Siemens website.

For more information, see the associated Siemens security advisory SSA-506569 in HTML and CSAF.

Siemens SCALANCE W1750D is a brand-labeled device from Aruba. For more information regarding these vulnerabilities, see the Aruba security advisory ARUBA-PSA-2022-014.

Plugin Details

Severity: Medium

ID: 501015

Version: 1.2

Type: remote

Family: Tenable.ot

Published: 4/11/2023

Updated: 7/24/2023

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.5

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

CVSS Score Source: CVE-2022-37895

CVSS v3

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 4.3

Vector: CVSS:3.0/AV:N/AC:L/PR:H/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_w1750d_firmware

Required KB Items: Tenable.ot/Siemens

Exploit Ease: No known exploits are available

Patch Publication Date: 10/7/2022

Vulnerability Publication Date: 10/7/2022

Reference Information

CVE: CVE-2022-37895

Detections

Analytics