Siemens SIMATIC S7-200 SMART Devices Use of Insufficiently Random Values (CVE-2024-35292)

high Tenable OT Security Plugin ID 502296

Synopsis

The remote OT asset is affected by a vulnerability.

Description

Affected devices are using a predictable IP ID sequence number. This leaves the system susceptible to a family of attacks which rely on the use of predictable IP ID sequence numbers as their base method of attack and eventually could allow an attacker to create a denial-of-service condition.

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

- Restrict access to the network where the affected products are located by introducing strict access control mechanisms.

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-481506 in HTML and CSAF.

Plugin Details

Severity: High

ID: 502296

File Name: tenable_ot_siemens_CVE-2024-35292.nasl

Version: 1.5

Type: remote

Family: Tenable.ot

Published: 7/22/2024

Updated: 2/14/2026

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.2

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.4

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

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

Vulnerability Information

CPE: cpe:/o:siemens:simatic_s7-200_smart_cpu_st60_firmware, cpe:/o:siemens:simatic_s7-200_smart_cpu_st20_firmware, cpe:/o:siemens:simatic_s7-200_smart_cpu_sr60_firmware, cpe:/o:siemens:simatic_s7-200_smart_cpu_sr40_firmware, cpe:/o:siemens:simatic_s7-200_smart_cpu_cr40_firmware, cpe:/o:siemens:simatic_s7-200_smart_cpu_sr20_firmware, cpe:/o:siemens:simatic_s7-200_smart_cpu_st30_firmware, cpe:/o:siemens:simatic_s7-200_smart_cpu_sr30_firmware, cpe:/o:siemens:simatic_s7-200_smart_cpu_st40_firmware, cpe:/o:siemens:simatic_s7-200_smart_cpu_cr60_firmware

Required KB Items: Tenable.ot/Siemens

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/11/2024

Vulnerability Publication Date: 6/11/2024

Reference Information

CVE: CVE-2024-35292

CWE: 330

ICSA: 24-165-02

Detections

Analytics