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CVE-2018-16563 PUBLISHED CVSS 5.900000095367432 MEDIUM

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.

EPSS 0.49% · 65.4th percentile

Risk Scores

CVSS v3.0
5.900000095367432
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.49%
65.4th percentile

Affected Products

VendorProductVersions
siemensen100_ethernet_module_with_firmware_variant_dnp3_tcp
SiemensFirmware variant Profinet IO for EN100 Ethernet moduleAll versions
SiemensFirmware variant MODBUS TCP for EN100 Ethernet moduleAll versions
siemensen100_ethernet_module_with_firmware_variant_modbus_tcp
SiemensSIPROTEC 5 relays with CPU variants CP300 and CP100 and the respective Ethernet communication modulesAll versions < V7.82
SiemensFirmware variant IEC 61850 for EN100 Ethernet moduleAll versions < V4.35
siemenssiprotec_5_with_cpu_variant_cp2000
siemenssiprotec_5_with_cpu_variant_cp1000
SiemensFirmware variant IEC104 for EN100 Ethernet moduleAll versions
siemensen100_ethernet_module_with_firmware_variant_iec_618504.35
siemensen100_ethernet_module_firmware
siemenssiprotec_5_with_cpu_variant_cp3000
SiemensSIPROTEC 5 relays with CPU variants CP200 and the respective Ethernet communication modulesAll versions < V7.58
siemensen100_ethernet_module_with_firmware_variant_profinet_io
SiemensFirmware variant DNP3 TCP for EN100 Ethernet moduleAll versions
SiemensN/A
siemensen100_ethernet_module_with_firmware_variant_iec104

Timeline

References

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