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Siemens SCALANCE W700 Improper Neutralization of Special Elements Used in an OS Command (CVE-2023-49691)

medium Tenable OT Security Plugin ID 502208

Synopsis

The remote OT asset is affected by a vulnerability.

Description

An Improper Neutralization of Special Elements used in an OS Command with root privileges vulnerability exists in the handling of the DDNS configuration. This could allow malicious local administrators to issue commands on system level after a successful IP address update.

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 users follow the General Security Recommendations described below.

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-690517 in HTML and CSAF.

See Also

https://cert-portal.siemens.com/productcert/pdf/ssa-602936.pdf

https://www.cisa.gov/news-events/ics-advisories/icsa-24-046-09

https://cert-portal.siemens.com/productcert/html/ssa-180704.html

https://www.cisa.gov/news-events/ics-advisories/icsa-23-348-14

https://www.cisa.gov/news-events/ics-advisories/icsa-24-165-12

Plugin Details

Severity: Medium

ID: 502208

File Name: tenable_ot_siemens_CVE-2023-49691.nasl

Version: 1.3

Type: remote

Family: Tenable.ot

Published: 4/15/2024

Updated: 2/14/2026

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 4.8

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

CVSS Score Source: CVE-2023-49691

CVSS v3

Risk Factor: Medium

Base Score: 6.7

Temporal Score: 6

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

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

Vulnerability Information

CPE: cpe:/o:siemens:scalance_mum856-1_firmware, cpe:/o:siemens:scalance_m874-3_firmware, cpe:/o:siemens:ruggedcom_rm1224_lte_firmware, cpe:/o:siemens:scalance_sc646-2c_firmware, cpe:/o:siemens:scalance_m816-1_firmware, cpe:/o:siemens:scalance_sc632-2c_firmware, cpe:/o:siemens:scalance_s615_eec_firmware, cpe:/o:siemens:scalance_sc642-2c_firmware, cpe:/o:siemens:scalance_sc622-2c_firmware, cpe:/o:siemens:scalance_m874-2_firmware, cpe:/o:siemens:scalance_m876-3_firmware, cpe:/o:siemens:scalance_m876-4_firmware, cpe:/o:siemens:scalance_s615_firmware, cpe:/o:siemens:scalance_sc626-2c_firmware, cpe:/o:siemens:scalance_m812-1_firmware, cpe:/o:siemens:scalance_sc636-2c_firmware, cpe:/o:siemens:scalance_m826-2_firmware, cpe:/o:siemens:scalance_mum853-1_firmware, cpe:/o:siemens:scalance_m804pb_firmware

Required KB Items: Tenable.ot/Siemens

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/13/2024

Vulnerability Publication Date: 2/13/2024

Reference Information

CVE: CVE-2023-49691

ICSA: 23-348-14, 24-046-09