ICSA-19-344-06: Siemens SIMATIC S7-1200 and S7-1500 CPU Families (Update B)
CISA advisory · released 2019-12-10
Source record Collected from CISA's CSAF advisory feed
- Distribution label in the document: TLP:WHITE
- Revision 2, 2020-03-10 (final)
CISA's summary
Risk evaluation: Successful exploitation of these vulnerabilities may allow an attacker to modify network traffic or impact the perceived integrity of the user program stored on the CPU.
Products, as the advisory lists them
| Vendor | Product | Version |
|---|---|---|
| Siemens | SIMATIC Drive Controller family | * (only affected by CVE-2019-10943) |
| Siemens | SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) | < 2.8.1 |
| Siemens | SIMATIC S7-PLCSIM Advanced | < 3.0 |
| Siemens | SIMATIC S7-1500 Software Controller | < 20.8 |
| Siemens | SIMATIC S7-1200 CPU family (incl. SIPLUS variants) | < 4.4.0 |
| Siemens | SIMATIC ET200SP (incl. SIPLUS variants) Open Controller CPU 1515SP PC | vers:all/* |
| Siemens | SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) | >= 2.8.1 (only affected by CVE-2019-10943) |
| Siemens | SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) | >= 20.8 (only affected by CVE-2019-10943) |
| Siemens | SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants) | vers:all/* |
| Siemens | SIMATIC S7-PLCSIM Advanced | >= 3.0 (only affected by CVE-2019-10943) |
| Siemens | SIMATIC S7-1200 CPU family (incl. SIPLUS variants) | >= 4.4.0 (only affected by CVE-2019-10943) |
| Siemens | SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) | < 20.8 |
| Siemens | SIMATIC S7-1500 Software Controller | >= 20.8 (only affected by CVE-2019-10943) |
DeSpy has not checked any unit, hardware revision or firmware.
Vulnerabilities in this advisory
- CVE-2019-10929 · CWE-327
An attacker in a man-in-the-middle position could modify network traffic exchanged on Port 102/TCP, due to certain properties in the calculation used for integrity protection. CVE-2019-10929 has been assigned to this vulnerability. A CVSS v3 base score of 3.7 has been calculated; the CVSS vector string is (AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N).
- CVE-2019-10943 · CWE-353
An attacker with network access to Port 102/TCP could modify the user program on the PLC in a way that the running code is different from the source code stored on the device. CVE-2019-10943 has been assigned to this vulnerability. A CVSS v3 base score of 5.3 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N).
Acknowledgments, as the advisory lists them
- Eli Biham, Sara Bitan, Aviad Carmel, Alon Dankner, Faculty of Computer Science, Technion Haifa: reporting these vulnerabilities to Siemens
- Uriel Malin, Avishai Wool, School of Electrical Engineering, Tel-Aviv University: reporting these vulnerabilities to Siemens
- Artem Zinenko, Kaspersky: reporting these vulnerabilities to Siemens
The advisory's legal notice
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Sources
DeSpy's copy of this version is dated 2026-09-28.
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