CVE-2018-4850

Summary

A vulnerability has been identified in SIMATIC S7-400 (incl. F) CPU hardware version 4.0 and below (All versions), SIMATIC S7-400 (incl. F) CPU hardware version 5.0 (All firmware versions < V5.2), SIMATIC S7-400H CPU hardware version 4.5 and below (All versions). The affected CPUs improperly validate S7 communication packets which could cause a Denial-of-Service condition of the CPU. The CPU will remain in DEFECT mode until manual restart.

Affected Software

Weaknesses

• CWE-20: CWE-20: Improper Input Validation

ADP Enrichment

CVE Program Container

Additional References

• https://cert-portal.siemens.com/productcert/pdf/ssa-914382.pdf
• http://www.securityfocus.com/bid/104217
• https://www.siemens.com/global/en/home/products/services/cert.html#SecurityPublications

References

• https://cert-portal.siemens.com/productcert/pdf/ssa-914382.pdf
• http://www.securityfocus.com/bid/104217
• https://www.siemens.com/global/en/home/products/services/cert.html#SecurityPublications

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