ICSA-23-166-06: Siemens TIA Portal
CISA advisory · released 2023-06-13
Source record Collected from CISA's CSAF advisory feed
- Distribution label in the document: TLP:WHITE
- Revision 3, 2024-12-10 (final)
CISA's summary
Summary: The know-how protection feature in Totally Integrated Automation Portal (TIA Portal) does not properly update the encryption of existing program blocks when a project file is updated. This could allow attackers with access to the project file to recover previous - yet unprotected - versions of the project without the knowledge of the know-how protection password. Siemens recommends specific countermeasures for products where fixes are not, or not yet available.
Products, as the advisory lists them
| Vendor | Product | Version |
|---|---|---|
| Siemens | Totally Integrated Automation Portal (TIA Portal) V14 | vers:all/* |
| Siemens | Totally Integrated Automation Portal (TIA Portal) V15 | vers:all/* |
| Siemens | Totally Integrated Automation Portal (TIA Portal) V15.1 | vers:all/* |
| Siemens | Totally Integrated Automation Portal (TIA Portal) V16 | vers:all/* |
| Siemens | Totally Integrated Automation Portal (TIA Portal) V17 | vers:all/* |
| Siemens | Totally Integrated Automation Portal (TIA Portal) V18 | vers:all/* |
| Siemens | Totally Integrated Automation Portal (TIA Portal) V19 | vers:all/* |
| Siemens | Totally Integrated Automation Portal (TIA Portal) V20 | vers:all/* |
DeSpy has not checked any unit, hardware revision or firmware.
Vulnerabilities in this advisory
- CVE-2023-30757 — CVE-2023-30757 · CWE-693
The know-how protection feature in affected products does not properly update the encryption of existing program blocks when a project file is updated. This could allow attackers with access to the project file to recover previous - yet unprotected - versions of the project without the knowledge of the know-how protection password.
Acknowledgments, as the advisory lists them
- Eli Biham, Sara Bitan, Alon Dankner, Arnon Lazerson, Assaf Rosenbaum, Faculty of Computer Science, Technion Haifa: reporting this vulnerability to Siemens.
The advisory's legal notice
The use of Siemens Security Advisories is subject to the terms and conditions listed on: https://www.siemens.com/productcert/terms-of-use.
Sources
DeSpy's copy of this version is dated 2026-09-28.
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