ICSA-22-314-04: Siemens SINUMERIK ONE and SINUMERIK MC
CISA advisory · released 2022-11-08
Source record Collected from CISA's CSAF advisory feed
- Distribution label in the document: TLP:WHITE
- Revision 2, 2023-02-14 (final)
CISA's summary
Summary: SINUMERIK ONE and SINUMERIK MC products are affected by a weak key protection vulnerability in the integrated S7-1500 CPU. The weak key protection vulnerability in the integrated S7-1500 CPU is documented in more detail in SSA-568427 [1]. Siemens has released updates for the affected products and recommends to update to the latest versions. [1] https://cert-portal.siemens.com/productcert/html/ssa-568427.html
Products, as the advisory lists them
| Vendor | Product | Version |
|---|---|---|
| Siemens | SINUMERIK MC | <V6.21 |
| Siemens | SINUMERIK ONE | <V6.21 |
DeSpy has not checked any unit, hardware revision or firmware.
Vulnerabilities in this advisory
- CVE-2022-38465 — CVE-2022-38465 · CWE-522
Affected products protect the built-in global private key in a way that cannot be considered sufficient any longer. The key is used for the legacy protection of confidential configuration data and the legacy PG/PC and HMI communication. This could allow attackers to discover the private key of a CPU product family by an offline attack against a single CPU of the family. Attackers could then use this knowledge to extract confidential configuration data from projects that are protected by that key or to perform attacks against legacy PG/PC and HMI communication.
Acknowledgments, as the advisory lists them
- Siemens ProductCERT: reporting this vulnerability to CISA.
The advisory's legal notice
Siemens Security Advisories are subject to the terms and conditions contained in Siemens' underlying license terms or other applicable agreements previously agreed to with Siemens (hereinafter "License Terms"). To the extent applicable to information, software or documentation made available in or through a Siemens Security Advisory, the Terms of Use of Siemens' Global Website (https://www.siemens.com/terms_of_use, hereinafter "Terms of Use"), in particular Sections 8-10 of the Terms of Use, shall apply additionally. In case of conflicts, the License Terms shall prevail over the Terms of Use.
Sources
DeSpy's copy of this version is dated 2026-09-28.
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