Siemens APOGEE PXC and TALON TC Series Inadequate Encryption Strength (CVE-2024-54089)

high Tenable OT Security Plugin ID 502865

Synopsis

The remote OT asset is affected by a vulnerability.

Description

Affected devices contain a weak encryption mechanism based on a hard-coded key. This could allow an attacker to guess or decrypt the password from the cyphertext.

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Solution

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

Siemens has identified the following specific workarounds and mitigations users can apply to reduce risk:

For CVE-2024-54089:

- Use strong, hard to guess passwords

For CVE-2024-54090:

- Ensure all three default passwords are changed even if not in use.
- Disable telnet (Telnet is disabled by default).

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-615116 in HTML and CSAF.

Plugin Details

Severity: High

ID: 502865

File Name: tenable_ot_siemens_CVE-2024-54089.nasl

Version: 1.3

Type: remote

Family: Tenable.ot

Published: 2/24/2025

Updated: 2/14/2026

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2024-54089

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: cpe:/o:siemens:apogee_pxc_modular_series_firmware, cpe:/o:siemens:apogee_pxc_compact_series_firmware

Required KB Items: Tenable.ot/Siemens

Exploit Ease: No known exploits are available

Patch Publication Date: 2/11/2025

Vulnerability Publication Date: 2/11/2025

Reference Information

CVE: CVE-2024-54089

CWE: 326

ICSA: 25-044-11

Detections

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