National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-11451 Detail

Current Description

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), 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). 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 SIPROTEC 4 and SIPROTEC Compact relays. 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.

Source:  MITRE
Description Last Modified:  07/23/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (V3 legend)
Impact Score: 3.6
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 7.8 HIGH
Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:C) (V2 legend)
Impact Subscore: 6.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://cert-portal.siemens.com/productcert/pdf/ssa-325546.pdf
https://cert-portal.siemens.com/productcert/pdf/ssa-635129.pdf Mitigation Vendor Advisory

Technical Details

Vulnerability Type (View All)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
AND
OR
cpe:2.3:o:siemens:dnp3_tcp_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:iec104_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:iec_61850_firmware:*:*:*:*:*:*:*:*    versions up to (excluding) 4.33
cpe:2.3:o:siemens:modbus_tcp_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:profinet_io_firmware:-:*:*:*:*:*:*:*
OR
cpe:2.3:h:siemens:en100:-:*:*:*:*:*:*:*
Configuration 2
AND
OR
cpe:2.3:o:siemens:cp100_firmware:*:*:*:*:*:*:*:*    versions up to (excluding) 7.80
cpe:2.3:o:siemens:cp200_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:cp300_firmware:*:*:*:*:*:*:*:*    versions up to (excluding) 7.80
OR
cpe:2.3:h:siemens:6md85:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:6md86:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:7ke85:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:7sa82:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:7sa86:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:7sa87:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:7sd82:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:7sd86:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:7sd87:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:7sj82:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:7sj85:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:7sj86:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:7sk82:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:7sk85:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:7sl82:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:7sl86:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:7sl87:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:7ss85:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:7um85:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:7ut82:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:7ut85:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:7ut86:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:7ut87:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:7vk87:-:*:*:*:*:*:*:*

Denotes Vulnerable Software
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Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-11451
NVD Published Date:
07/23/2018
NVD Last Modified:
01/09/2019