Vulnerability-Lookup

VAR-202204-0320

Vulnerability from variot - Updated: 2023-12-18 11:56

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. plural SIMATIC The product contains a buffer error vulnerability.Denial of service (DoS) It may be put into a state. The SIMATIC S7-400 CPU family is designed for process control in industrial environments.

A denial of service vulnerability exists in Siemens SIMATIC S7-400 CPUs that could be exploited by an attacker to create a denial of service condition

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CVE-2021-40368 (GCVE-0-2021-40368)

Vulnerability from cvelistv5 – Published: 2022-04-12 09:07 – Updated: 2025-04-21 13:54

Summary

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-18 15:12 UTC

CWE

CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Assigner

siemens icscert root

References

1 reference

URL	Tags
https://cert-portal.siemens.com/productcert/pdf/s…

Impacted products

20 products

Vendor	Product	Version
Siemens	SIMATIC S7-400 CPU 412-1 DP V7	Affected: All versions
Siemens	SIMATIC S7-400 CPU 412-2 DP V7	Affected: All versions
Siemens	SIMATIC S7-400 CPU 412-2 PN/DP V7	Affected: All versions < V7.0.3
Siemens	SIMATIC S7-400 CPU 414-2 DP V7	Affected: All versions
Siemens	SIMATIC S7-400 CPU 414-3 DP V7	Affected: All versions
Siemens	SIMATIC S7-400 CPU 414-3 PN/DP V7	Affected: All versions < V7.0.3
Siemens	SIMATIC S7-400 CPU 414F-3 PN/DP V7	Affected: All versions < V7.0.3
Siemens	SIMATIC S7-400 CPU 416-2 DP V7	Affected: All versions
Siemens	SIMATIC S7-400 CPU 416-3 DP V7	Affected: All versions
Siemens	SIMATIC S7-400 CPU 416-3 PN/DP V7	Affected: All versions < V7.0.3
Siemens	SIMATIC S7-400 CPU 416F-2 DP V7	Affected: All versions
Siemens	SIMATIC S7-400 CPU 416F-3 PN/DP V7	Affected: All versions < V7.0.3
Siemens	SIMATIC S7-400 CPU 417-4 DP V7	Affected: All versions
Siemens	SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants)	Affected: All versions < V6.0.10
Siemens	SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants)	Affected: All versions < V10.1
Siemens	SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants)	Affected: All versions < V8.2.3
Siemens	SIPLUS S7-400 CPU 414-3 PN/DP V7	Affected: All versions < V7.0.3
Siemens	SIPLUS S7-400 CPU 416-3 PN/DP V7	Affected: All versions < V7.0.3
Siemens	SIPLUS S7-400 CPU 416-3 V7	Affected: All versions
Siemens	SIPLUS S7-400 CPU 417-4 V7	Affected: All versions

Show details on NVD website

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

VAR-202204-0320

CVE-2021-40368 (GCVE-0-2021-40368)

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Sightings

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Related by attack behaviour