SSA-042050 V1.2 (Last Update: 2024-12-10): Know-How Protection Mechanism Failure in TIA Portal

Risk Summary

<p>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.</p> <p>Siemens recommends specific countermeasures for products where fixes are not, or not yet available.</p>

Remediations

• Refer to Siemens ProductCERT advisory for patch and remediation guidance.

Affected Vendors

Affected Products (1)