Siemens SIMATIC S7-300 Denial of Service (CVE-2016-3949)

high Tenable OT Security Plugin ID 500326

Synopsis

The remote OT asset is affected by a vulnerability.

Description

Siemens SIMATIC S7-300 Profinet-enabled CPU devices with firmware before 3.2.12 and SIMATIC S7-300 Profinet-disabled CPU devices with firmware before 3.3.12 allow remote attackers to cause a denial of service (defect-mode transition) via crafted (1) ISO-TSAP or (2) Profibus packets.

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: 500326

Version: 1.4

Type: remote

Family: Tenable.ot

Published: 2/7/2022

Updated: 11/14/2023

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:N/I:N/A:C

CVSS Score Source: CVE-2016-3949

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:N/I:N/A:H

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

Vulnerability Information

CPE: cpe:/o:siemens:simatic_s7-300_with_profitnet_support_firmware:3.2.11, cpe:/o:siemens:simatic_s7-300_without_profitnet_support_firmware:3.3.11

Required KB Items: Tenable.ot/Siemens

Exploit Ease: No known exploits are available

Patch Publication Date: 6/27/2016

Vulnerability Publication Date: 6/27/2016

Reference Information

CVE: CVE-2016-3949

CWE: 399

Detections

Analytics