ICSA-18-347-02: ICSA-18-347-02 Siemens EN100 Ethernet Communication Module and SIPROTEC 5 Relays (Update A)
CISA advisory · released 2018-07-11
Source record Collected from CISA's CSAF advisory feed
- Distribution label in the document: TLP:WHITE
- Revision 3, 2019-02-12 (final)
Products, as the advisory lists them
| Vendor | Product | Version |
|---|---|---|
| Siemens | Firmware variant IEC 61850 for EN100 Ethernet module | <V4.33 |
| Siemens | Firmware variant PROFINET IO for EN100 Ethernet module | vers:all/* |
| Siemens | Firmware variant Modbus TCP for EN100 Ethernet module | vers:all/* |
| Siemens | Firmware variant DNP3 TCP for EN100 Ethernet module | vers:all/* |
| Siemens | Firmware variant IEC104 for EN100 Ethernet module | <V1.22 |
| Siemens | SIPROTEC 5 relays with CPU variants CP300 and CP100 and the respective | <V7.80 |
| Siemens | SIPROTEC 5 relays with CPU variants CP200 and the respective Ethernet | <V7.58 |
DeSpy has not checked any unit, hardware revision or firmware.
Vulnerabilities in this advisory
- CVE-2018-11451 · CWE-20
Specially crafted packets to port 102/tcp could cause a denial-of-service condition in the affected products. A manual restart is required to recover the EN100 module functionality of the affected devices. Successful exploitation requires an attacker with network access to send multiple packets to the affected products or modules. As a precondition the IEC 61850-MMS communication needs to be activated on the affected products or modules. No user interaction or privileges are required to exploit the vulnerability. The vulnerability could allow causing a Denial-of-Service condition of the network functionality of the device, compromising the availability of the system. At the time of advisory publication no public exploitation of this security vulnerability was known.
- CVE-2018-11452 · CWE-20
Specially crafted packets to port 102/tcp could cause a denial-of-service condition in the EN100 communication module if oscillographs are running. A manual restart is required to recover the EN100 module functionality. Successful exploitation requires an attacker with network access to send multiple packets to the EN100 module. As a precondition the IEC 61850-MMS communication needs to be activated on the affected EN100 modules. No user interaction or privileges are required to exploit the security vulnerability. The vulnerability could allow causing a Denial-of-Service condition of the network functionality of the device, compromising the availability of the system. At the time of advisory publication no public exploitation of this security vulnerability was known.
Acknowledgments, as the advisory lists them
- Victor Nikitin, Vladislav Suchkov, Ilya Karpov, ScadaX: coordinating disclosure
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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