CVE-2011-20001
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
A vulnerability has been identified in SIMATIC S7-1200 CPU V1 family (incl. SIPLUS variants) (All versions < V2.0.3), SIMATIC S7-1200 CPU V2 family (incl. SIPLUS variants) (All versions < V2.0.3). The web server interface of affected devices improperly processes incoming malformed HTTP traffic at high rate. This could allow an unauthenticated remote attacker to force the device entering the stop/defect state, thus creating a denial of service condition.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Siemens | SIMATIC S7-1200 CPU V1 family (incl. SIPLUS variants) | 0 < V2.0.3 | affected |
| Siemens | SIMATIC S7-1200 CPU V2 family (incl. SIPLUS variants) | 0 < V2.0.3 | affected |
Weaknesses
- CWE-20: CWE-20: Improper Input Validation
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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