Executive Summary

This vulnerability exists in multiple Siemens software products where the SALT SDK does not validate server certificates when establishing TLS connections to the authorization server. This flaw could allow an attacker to perform a man-in-the-middle attack by intercepting or altering communications.

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Impact Analysis

The vulnerability can lead to a man-in-the-middle attack, potentially allowing attackers to intercept, modify, or steal sensitive data transmitted between the software and the authorization server. This can compromise confidentiality, integrity, and availability of the affected systems.

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Compliance Impact

The vulnerability allows man-in-the-middle (MITM) attacks due to missing server certificate validation during TLS connections, which can compromise confidentiality, integrity, and availability of data. Such compromises can negatively impact compliance with common standards and regulations like GDPR and HIPAA, which require protection of sensitive data and secure communications. Siemens recommends applying updates and countermeasures, protecting network access, and following operational security guidelines to mitigate these risks and help maintain compliance. [1, 2]

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Mitigation Strategies

Immediate mitigation steps include updating affected Siemens products to the latest versions where fixes are available, such as NX V2412.8900 or later, NX V2506.6000 or later, Simcenter 3D V2506.6000 or later, Simcenter Femap V2506.0002 or later, and Tecnomatix Plant Simulation V2504.0007 or later. For products without available fixes, implement recommended countermeasures such as protecting network access with appropriate security mechanisms and configuring operational environments according to Siemens' Industrial Security operational guidelines. Refer to Siemens' product manuals and security advisories for detailed configuration and mitigation steps. [1, 2]

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