CVE-2021-37204
Last modified
CVE-2021-37204 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability has been identified in SIMATIC Drive Controller family (All versions < V2.9.2), SIMATIC Drive Controller family (All versions >= V2.9.2 < V2.9.4), SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants) (All versions), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. EPSS estimates a 2.15% chance of exploitation in the next 30 days.
Description
A vulnerability has been identified in SIMATIC Drive Controller family (All versions < V2.9.2), SIMATIC Drive Controller family (All versions >= V2.9.2 < V2.9.4), SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants) (All versions), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions < V21.9), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions >= V21.9 < V21.9.4), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 Ready4Linux (All versions), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions < V4.5.0), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions >= V4.5.0 < V4.5.2), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions < V2.9.2), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions >= V2.9.2 < V2.9.4), SIMATIC S7-1500 Software Controller (All versions < V21.9), SIMATIC S7-1500 Software Controller (All versions >= V21.9 < V21.9.4), SIMATIC S7-PLCSIM Advanced (All versions < V4.0), SIMATIC S7-PLCSIM Advanced (All versions >= V4.0 < V4.0 SP1), SIPLUS TIM 1531 IRC (All versions < V2.3.6), TIM 1531 IRC (All versions < V2.3.6). An unauthenticated attacker could cause a denial-of-service condition in a PLC when sending specially prepared packet over port 102/tcp. A restart of the affected device is needed to restore normal operations.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Siemens | Simatic Drive Controller Cpu 1504d Tf Firmware | < 2.9.4 |
| Siemens | Simatic Drive Controller Cpu 1507d Tf Firmware | < 2.9.4 |
| Siemens | Simatic Et 200sp Open Controller Cpu 1515sp Pc2 Firmware | All versions |
| Siemens | Simatic S7-Plcsim Advanced Firmware | < 4.0 |
| Siemens | Simatic S7-Plcsim Advanced Firmware | 4.0 |
| Siemens | Tim 1531 Irc Firmware | >= 2.2 |
| Siemens | Simatic S7-1500 Software Controller | All versions |
| Siemens | Simatic S7-1200 Cpu 1211c Firmware | >= 4.5.0, < 4.5.2 |
| Siemens | Simatic S7-1200 Cpu 1212c Firmware | >= 4.5.0, < 4.5.2 |
| Siemens | Simatic S7-1200 Cpu 1212fc Firmware | >= 4.5.0, < 4.5.2 |
| Siemens | Simatic S7-1200 Cpu 1214fc Firmware | >= 4.5.0, < 4.5.2 |
| Siemens | Simatic S7-1200 Cpu 1214c Firmware | >= 4.5.0, < 4.5.2 |
| Siemens | Simatic S7-1200 Cpu 1215fc Firmware | >= 4.5.0, < 4.5.2 |
| Siemens | Simatic S7-1200 Cpu 1215c Firmware | >= 4.5.0, < 4.5.2 |
| Siemens | Simatic S7-1200 Cpu 1217c Firmware | >= 4.5.0, < 4.5.2 |
| Siemens | Simatic S7-1500 Cpu 1510sp-1 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1510sp Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1511-1 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1511c-1 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1511f-1 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1511t-1 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1511tf-1 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1512c-1 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1512sp-1 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1512spf-1 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1513-1 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1513f-1 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1513r-1 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu Cpu 1513prof-2 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu Cpu 1513pro-2 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1515-2 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1515f-2 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1515r-2 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1515t-2 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1515tf-2 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1516pro F Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1516pro-2 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1516-3 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1516f-3 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1516t-3 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1516tf-3 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1517-3 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1517f-3 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1517tf-3 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1518-4 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1518f-4 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1518hf-4 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1518t-4 Firmware | >= 2.9.2, < 2.9.4 |
| Siemens | Simatic S7-1500 Cpu 1518tf-4 Firmware | >= 2.9.2, < 2.9.4 |
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-838121.pdfPatch, Vendor Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-838121.pdfPatch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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