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

Siemens has identified the following specific workarounds and mitigations that customers can apply to reduce the risk:
- Restrict access to the network where the affected products are located by introducing strict access control mechanisms

Plugin Details

Severity: High

ID: 502296

Version: 1.2

Type: remote

Family: Tenable.ot

Published: 7/22/2024

Updated: 7/22/2024

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 5.0

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_cr40_firmware, cpe:/o:siemens:simatic_s7-200_smart_cpu_cr60_firmware, cpe:/o:siemens:simatic_s7-200_smart_cpu_sr20_firmware, cpe:/o:siemens:simatic_s7-200_smart_cpu_sr30_firmware, cpe:/o:siemens:simatic_s7-200_smart_cpu_sr40_firmware, cpe:/o:siemens:simatic_s7-200_smart_cpu_sr60_firmware, cpe:/o:siemens:simatic_s7-200_smart_cpu_st20_firmware, cpe:/o:siemens:simatic_s7-200_smart_cpu_st30_firmware, cpe:/o:siemens:simatic_s7-200_smart_cpu_st40_firmware, cpe:/o:siemens:simatic_s7-200_smart_cpu_st60_firmware

Required KB Items: Tenable.ot/Siemens

Patch Publication Date: 6/11/2024

Vulnerability Publication Date: 6/11/2024

Reference Information

CVE: CVE-2024-35292

CWE: 330

Detections

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