A vulnerability has been identified in Firmware variant IEC 61850 for EN100 Ethernet module (All versions < V4.35), Firmware variant MODBUS TCP for EN100 Ethernet module (All versions), Firmware variant DNP3 TCP for EN100 Ethernet module (All versions), Firmware variant IEC104 for EN100 Ethernet module (All versions), Firmware variant Profinet IO for EN100 Ethernet module (All versions), SIPROTEC 5 relays with CPU variants CP300 and CP100 and the respective Ethernet communication modules (All versions < V7.82), SIPROTEC 5 relays with CPU variants CP200 and the respective Ethernet communication modules (All versions < V7.58). 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.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
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siemens siprotec_5_with_cpu_variant_cp100 |
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siemens siprotec_5_with_cpu_variant_cp300 |
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siemens siprotec_5_with_cpu_variant_cp200 |
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siemens en100_ethernet_module_with_firmware_variant_modbus_tcp - |
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siemens en100_ethernet_module_firmware - |
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siemens en100_ethernet_module_with_firmware_variant_profinet_io - |
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siemens en100_ethernet_module_with_firmware_variant_iec104 - |
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siemens en100_ethernet_module_with_firmware_variant_dnp3_tcp - |
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siemens en100_ethernet_module_with_firmware_variant_iec_61850 4.35 |
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