CVE-2020-28391
N/A
N/A
Summary
A vulnerability has been identified in SCALANCE X-200 switch family (incl. SIPLUS NET variants) (All versions < V5.2.5), SCALANCE X-200IRT switch family (incl. SIPLUS NET variants) (All versions < V5.5.0), SCALANCE X-200RNA switch family (All versions < V3.2.7). Devices create a new unique key upon factory reset, except when used with C-PLUG. When used with C-PLUG the devices use the hardcoded private RSA-key shipped with the firmware-image. An attacker could leverage this situation to a man-in-the-middle situation and decrypt previously captured traffic.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Siemens | SCALANCE X-200 switch family (incl. SIPLUS NET variants) | All versions < V5.2.5 | affected |
| Siemens | SCALANCE X-200IRT switch family (incl. SIPLUS NET variants) | All versions < V5.5.0 | affected |
| Siemens | SCALANCE X-200RNA switch family | All versions < V3.2.7 | affected |
Weaknesses
- CWE-321: CWE-321: Use of Hard-coded Cryptographic Key
ADP Enrichment
CVE Program Container
Additional References
- https://cert-portal.siemens.com/productcert/pdf/ssa-274900.pdf
- https://us-cert.cisa.gov/ics/advisories/icsa-21-012-02
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-274900.pdf
- https://us-cert.cisa.gov/ics/advisories/icsa-21-012-02
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