Vulnerability Description
A vulnerability has been identified in SIMATIC Drive Controller family (All versions < V2.9.2), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions < V21.9), SIMATIC S7 PLCSIM Advanced (All versions > V2 < V4), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (Version V4.4), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions > V2.5 < V2.9.2), SIMATIC S7-1500 Software Controller (All versions > V2.5 < V21.9), TIM 1531 IRC (incl. SIPLUS NET variants) (Version V2.1). Due to an incorrect authorization check in the affected component, an attacker could extract information about access protected PLC program variables over port 102/tcp from an affected device when reading multiple attributes at once.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Siemens | Cpu 1504D Tf Firmware | < 2.9.2 |
| Siemens | Cpu 1504D Tf | - |
| Siemens | Cpu 1507D Tf Firmware | < 2.9.2 |
| Siemens | Cpu 1507D Tf | - |
| Siemens | Cpu 1515Sp Pc2 Tf Firmware | < 21.9 |
| Siemens | Cpu 1515Sp Pc2 Tf | - |
| Siemens | Simatic S7 Plcsim Advanced Firmware | >= 2.0, < 4.0 |
| Siemens | Simatic S7 Plcsim Advanced | - |
| Siemens | Simatic S7-1500 Software Controller | >= 2.5, < 21.9 |
| Siemens | Tim 1531 Irc Firmware | 2.1 |
| Siemens | Tim 1531 Irc | - |
| Siemens | Cpu 1211C Firmware | 4.4 |
| Siemens | Cpu 1211C | - |
| Siemens | Cpu 1212C Firmware | 4.4 |
| Siemens | Cpu 1212C | - |
| Siemens | Cpu 1212Fc Firmware | 4.4 |
| Siemens | Cpu 1212Fc | - |
| Siemens | Cpu 1214Fc Firmware | 4.4 |
| Siemens | Cpu 1214Fc | - |
| Siemens | Cpu 1214C Firmware | 4.4 |
Related Weaknesses (CWE)
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-865327.pdfPatchVendor Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-865327.pdfPatchVendor Advisory
FAQ
What is CVE-2020-28397?
CVE-2020-28397 is a vulnerability with a CVSS score of 5.3 (MEDIUM). A vulnerability has been identified in SIMATIC Drive Controller family (All versions < V2.9.2), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions < V21.9), SIMATIC ...
How severe is CVE-2020-28397?
CVE-2020-28397 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-28397?
Check the references section above for vendor advisories and patch information. Affected products include: Siemens Cpu 1504D Tf Firmware, Siemens Cpu 1504D Tf, Siemens Cpu 1507D Tf Firmware, Siemens Cpu 1507D Tf, Siemens Cpu 1515Sp Pc2 Tf Firmware.