As of January 10, 2023, the Cybersecurity and Infrastructure Security Agency (CISA) no longer updates security advisories concerning Siemens product vulnerabilities past the initial advisory. For the latest information on vulnerabilities, users are directed to Siemens’ ProductCERT Security Advisories.
1. Executive Summary
Siemens has identified several vulnerabilities in their SIDIS Prime product, which affect all versions prior to V4.0.700. The vulnerabilities comprise a range of issues such as race conditions, improper validation, unchecked inputs, and buffer overflows. Most notably, these vulnerabilities yield a CVSS v4 score of 9.1, indicating a high risk of exploitation remotely with low attack complexity.
2. Risk Evaluation
If exploited, attackers could perform unauthorized deletions, cause denial of service, corrupt application states, leak sensitive information, or execute remote commands.
3. Technical Details
Affected Products:
- SIDIS Prime: All versions before V4.0.700
Vulnerabilities Overview
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Race Condition (CWE-363): Insecure handling could allow attackers to access files they shouldn’t, leading to possible unauthorized deletions. (CVE-2022-21658)
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Improper Validation of Integrity (CWE-354): A flaw in the AES-SIV cipher implementation could mislead applications regarding empty data entries. (CVE-2023-2975)
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Unchecked Input for Loop Condition (CWE-606): Checking parameters may be slow, leading to potential denial-of-service (DoS) vulnerabilities if the inputs come from untrusted sources. (CVE-2023-3446)
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Expected Behavior Violation (CWE-440): Errors in the POLY1305 MAC implementation could corrupt the application state. (CVE-2023-4807)
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Incorrect Provision of Specified Functionality (CWE-684): Bugs in key and IV lengths lead to potential truncation and confidentiality issues during cipher initialization. (CVE-2023-5363)
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Heap-Based Buffer Overflow (CWE-122): Found in SQLite, this vulnerability is critical as heap manipulation could lead to overflow situations. (CVE-2023-7104)
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Cleartext Transmission of Sensitive Information (CWE-319): Vulnerabilities found in Microsoft’s SQL data providers could bypass security features. (CVE-2024-0056)
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Use After Free (CWE-416): A local attacker could exploit a JSON parsing flaw in SQLite, leading to denial of service. (CVE-2024-0232)
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NULL Pointer Dereference (CWE-476): OpenSSL may crash, resulting in a DoS when processing malformed PKCS12 files. (CVE-2024-0727)
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Exposure of Sensitive Information (CWE-200): Improper usage of the OpenSSL API could result in confidential data being transmitted to unauthorized actors. (CVE-2024-5535)
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Out-of-bounds Write (CWE-787): Careless handling of elliptic curve parameters could cause memory issues, raising risks of crashes. (CVE-2024-9143)
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Improper Input Validation (CWE-20): A vulnerability within Microsoft identity systems could lead to denial of service. (CVE-2024-21319)
- Uncontrolled Resource Consumption (CWE-400): Vulnerability in .NET and Visual Studio may lead to DoS. (CVE-2024-30105)
4. Mitigations
Siemens recommends updating SIDIS Prime to version 4.0.700. They also advise securing network access to devices, isolating networks, utilizing firewalls, and employing VPNs for remote access where necessary. CISA recommends a thorough risk assessment and implementation of best practices for control system security.
5. Update History
CISA published an initial advisory on April 10, 2025, detailing these vulnerabilities and their implications.
Conclusion
Organizations should update affected Siemens products and adopt security measures to prevent potential exploitation of these vulnerabilities, reinforcing the importance of a proactive cybersecurity posture.