CVE-2021-40368

Published: Apr 12, 2022Modified: Nov 21, 2024

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 3.6

Source: NVD (Secondary)

Description

A vulnerability has been identified in SIMATIC S7-400 CPU 412-1 DP V7 (All versions), SIMATIC S7-400 CPU 412-2 DP V7 (All versions), SIMATIC S7-400 CPU 412-2 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 414-2 DP V7 (All versions), SIMATIC S7-400 CPU 414-3 DP V7 (All versions), SIMATIC S7-400 CPU 414-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 414F-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 416-2 DP V7 (All versions), SIMATIC S7-400 CPU 416-3 DP V7 (All versions), SIMATIC S7-400 CPU 416-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 416F-2 DP V7 (All versions), SIMATIC S7-400 CPU 416F-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 417-4 DP V7 (All versions), SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants) (All versions < V6.0.10), SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants) (All versions < V10.1), SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants) (All versions < V8.2.3), SIPLUS S7-400 CPU 414-3 PN/DP V7 (All versions < V7.0.3), SIPLUS S7-400 CPU 416-3 PN/DP V7 (All versions < V7.0.3), SIPLUS S7-400 CPU 416-3 V7 (All versions), SIPLUS S7-400 CPU 417-4 V7 (All versions). Affected devices improperly handle specially crafted packets sent to port 102/tcp. This could allow an attacker to create a Denial-of-Service condition. A restart is needed to restore normal operations.

Affected (4)

Products: Siemens: Simatic S7 400h V6 Firmware, Simatic S7 400 Pn/dp V7 Firmware, Simatic S7 410 V8 Firmware, Simatic S7 410 V10 Firmware

Siemens

4 products

Simatic S7 400h V6 Firmware

Simatic S7 400 Pn/dp V7 Firmware

Simatic S7 410 V8 Firmware

Simatic S7 410 V10 Firmware

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Siemens Simatic S7 400h V6 Firmware	Before 6.0.10

Running on/with	Platform Versions
Siemens Simatic S7 400h V6	All versions

Configuration B

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Siemens Simatic S7 400 Pn/dp V7 Firmware	All versions

Running on/with	Platform Versions
Siemens Simatic S7 400 Pn/dp V7	All versions

Configuration C

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Siemens Simatic S7 410 V8 Firmware	All versions

Running on/with	Platform Versions
Siemens Simatic S7 410 V8	All versions

Configuration D

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Siemens Simatic S7 410 V10 Firmware	Before 10.1

Running on/with	Platform Versions
Siemens Simatic S7 410 V10	All versions

Related CWEs

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

References (2)

https://cert-portal.siemens.com/productcert/pdf/ssa-557541.pdf

Source: productcert@siemens.com

PatchVendor Advisory

https://cert-portal.siemens.com/productcert/pdf/ssa-557541.pdf

Source: af854a3a-2127-422b-91ae-364da2661108

PatchVendor Advisory

Timeline

No history available yet.