Siemens SIMATIC S7-200 SMART Uncontrolled Resource Consumption (CVE-2024-43647)

high Tenable OT Security Plugin ID 502482

Synopsis

The remote OT asset is affected by a vulnerability.

Description

Affected devices do not properly handle TCP packets with an incorrect structure. This could allow an unauthenticated remote attacker to cause a denial of service condition. To restore normal operations, the network cable of the device needs to be unplugged and re-plugged.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

Refer to the vendor advisory.

Plugin Details

Severity: High

ID: 502482

Version: 1.2

Type: remote

Family: Tenable.ot

Published: 10/8/2024

Updated: 10/9/2024

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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_sr60_firmware, cpe:/o:siemens:simatic_s7-200_smart_cpu_st20_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, cpe:/o:siemens:simatic_s7-200_smart_cpu_st60_firmware

Required KB Items: Tenable.ot/Siemens

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/10/2024

Vulnerability Publication Date: 9/10/2024

Reference Information

CVE: CVE-2024-43647

CWE: 400

ICSA: 24-228-01

Detections

Analytics