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Siemens S7-200 Vulnerability Alert: How to Avoid a DoS Disaster
CISA will stop updating ICS security advisories for Siemens product vulnerabilities after the initial advisory. For the latest information on Siemens SIMATIC S7-200 SMART devices and their vulnerabilities, check Siemens’ ProductCERT Security Advisories.
Hot Take:
Well, folks, it looks like Siemens’ SIMATIC S7-200 SMART devices just got a little less “smart” thanks to a vulnerability that could cause a denial-of-service condition. If only they could predict the future as well as they predict IP ID sequences! As of January 10, 2023, CISA will be leaving you to fend for yourselves with Siemens’ ProductCERT Security Advisories for updates. Time to dust off those VPNs and firewalls because it’s going to be a bumpy ride!
Key Points:
- CISA stops updating ICS security advisories for Siemens beyond initial advisory.
- Siemens’ SIMATIC S7-200 SMART devices are vulnerable due to predictable IP ID sequence numbers.
- Vulnerability identified as CVE-2024-35292 with a CVSS v4 score of 8.8.
- Potential denial-of-service condition if exploited.
- Siemens and CISA provide mitigation strategies, including strict access control and VPN usage.
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