PT-2023-15289 · Siemens · Sinamics Sm120+6

Published

2023-12-12

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Updated

2023-12-18

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CVE-2022-47374

CVSS v3.1

7.5

High

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions 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) versions prior to 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)
Description The affected products do not handle HTTP(S) requests to the web server correctly, which could allow an attacker to exhaust system resources and create a denial of service condition for the device.
Recommendations For SIMATIC PC-Station Plus, consider restricting access to the web server to minimize the risk of exploitation. For SIMATIC S7-400 CPU 412-2 PN V7, SIMATIC S7-400 CPU 414-3 PN/DP V7, SIMATIC S7-400 CPU 414F-3 PN/DP V7, SIMATIC S7-400 CPU 416-3 PN/DP V7, and SIMATIC S7-400 CPU 416F-3 PN/DP V7, restrict access to the web server until a patch is available. For SINAMICS S120 (incl. SIPLUS variants), update to version V5.2 SP3 HF15 or later to resolve the issue. For SIPLUS S7-400 CPU 414-3 PN/DP V7 and SIPLUS S7-400 CPU 416-3 PN/DP V7, restrict access to the web server to minimize the risk of exploitation. As a temporary workaround, consider disabling the web server functionality until a patch is available.

Fix

Uncontrolled Recursion

Weakness Enumeration

CWE-674

Related Identifiers

CVE-2022-47374

Affected Products

Simatic Pc-Station Plus
Simatic S7-400 Cpu 412-2 Pn V7
Simatic S7-400 Cpu 414F-3 Pn/Dp V7
Simatic S7-400 Cpu 416-3 Pn/Dp V7
Sinamics Sm120
Siplus S7-400 Cpu 414-3 Pn/Dp V7
Siplus S7-400 Cpu 416-3 Pn/Dp V7