Vulnerability Monitor

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CVE-2018-11451

A vulnerability has been identified in Firmware variant IEC 61850 for EN100 Ethernet module (All versions < V4.33), Firmware variant PROFINET IO for EN100 Ethernet module (All versions), 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 < V1.22), SIPROTEC 5 relays with CPU variants CP300 and CP100 and the respective Ethernet communication modules (All versions < V7.80), 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.

Published

2018-07-23T21:29:00.237

Last Modified

2024-11-21T03:43:23.707

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: COMPLETE
Exploitability Score

10.0

Impact Score

6.9

Weaknesses
  • Type: Primary
    CWE-20
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System siemens dnp3_tcp_firmware - Yes
Operating System siemens iec_61850_firmware < 4.33 Yes
Operating System siemens iec104_firmware - Yes
Operating System siemens modbus_tcp_firmware - Yes
Operating System siemens profinet_io_firmware - Yes
Hardware siemens en100 - No
Operating System siemens cp100_firmware < 7.80 Yes
Operating System siemens cp200_firmware - Yes
Operating System siemens cp300_firmware < 7.80 Yes
Hardware siemens 6md85 - No
Hardware siemens 6md86 - No
Hardware siemens 7ke85 - No
Hardware siemens 7sa82 - No
Hardware siemens 7sa86 - No
Hardware siemens 7sa87 - No
Hardware siemens 7sd82 - No
Hardware siemens 7sd86 - No
Hardware siemens 7sd87 - No
Hardware siemens 7sj82 - No
Hardware siemens 7sj85 - No
Hardware siemens 7sj86 - No
Hardware siemens 7sk82 - No
Hardware siemens 7sk85 - No
Hardware siemens 7sl82 - No
Hardware siemens 7sl86 - No
Hardware siemens 7sl87 - No
Hardware siemens 7ss85 - No
Hardware siemens 7um85 - No
Hardware siemens 7ut82 - No
Hardware siemens 7ut85 - No
Hardware siemens 7ut86 - No
Hardware siemens 7ut87 - No
Hardware siemens 7vk87 - No
References