Siemens SIMATIC S7-400 Uncontrolled Recursion (CVE-2022-47374)

high Tenable OT Security Plugin ID 501855

Synopsis

The remote OT asset is affected by a vulnerability.

Description

A vulnerability has been identified in SIMATIC PC-Station Plus (All versions), SIMATIC S7-400 CPU 412-2 PN V7 (All versions), SIMATIC S7-400 CPU 414-3 PN/DP V7 (All versions), SIMATIC S7-400 CPU 414F-3 PN/DP V7 (All versions), SIMATIC S7-400 CPU 416-3 PN/DP V7 (All versions), SIMATIC S7-400 CPU 416F-3 PN/DP V7 (All versions), SINAMICS S120 (incl. SIPLUS variants) (All versions < V5.2 SP3 HF15), SIPLUS S7-400 CPU 414-3 PN/DP V7 (All versions), SIPLUS S7-400 CPU 416-3 PN/DP V7 (All versions). The affected products do not handle HTTP(S) requests to the web server correctly. This could allow an attacker to exhaust system resources and create a denial of service condition for the device.

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: 501855

Version: 1.1

Type: remote

Family: Tenable.ot

Published: 1/4/2024

Updated: 1/4/2024

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-2022-47374

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_s7-400_cpu_412-2_pn_firmware, cpe:/o:siemens:simatic_s7-400_cpu_414-3_pn%2fdp_firmware, cpe:/o:siemens:simatic_s7-400_cpu_414f-3_pn%2fdp_firmware, cpe:/o:siemens:simatic_s7-400_cpu_416-3_pn%2fdp_firmware, cpe:/o:siemens:simatic_s7-400_cpu_416f-3_pn%2fdp_firmware, cpe:/o:siemens:siplus_s7-400_cpu_414-3_pn%2fdp_firmware, cpe:/o:siemens:siplus_s7-400_cpu_416-3_pn%2fdp_firmware

Required KB Items: Tenable.ot/Siemens

Exploit Ease: No known exploits are available

Patch Publication Date: 12/12/2023

Vulnerability Publication Date: 12/12/2023

Reference Information

CVE: CVE-2022-47374

CWE: 674

Detections

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