Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Siemens AG / SIMATIC S7-400 (incl. F) CPU hardware version 4.0 and below, SIMATIC S7-400 (incl. F) CPU hardware version 5.0, SIMATIC S7-400H CPU hardware version 4.5 and below | affected SIMATIC S7-400 (incl. F) CPU hardware version 4.0 and below : All versions; affected SIMATIC S7-400 (incl. F) CPU hardware version 5.0 : All firmware versions < V5.2; affected SIMATIC S7-400H CPU hardware version 4.5 and below : All versions |
CWE
CWE-20
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
ADP enrichment
No English description supplied.