Siemens EN100 Ethernet Module (Update A)
Operators of critical power systems (e.g. TSOs) worldwide are usually required by regulations to build resilience into the power grids by applying multi-level redundant secondary protection schemes. It is therefore recommended that the operators check whether appropriate resilient protection measures are in place. The risk of cyber incidents impacting the grid's reliability can thus be minimized by virtue of the grid design. Siemens strongly recommends applying the provided security updates using the corresponding tooling and documented procedures made available with the product. If supported by the product, an automated means to apply the security updates across multiple product instances may be used. Siemens strongly recommends prior validation of any security update before being applied, and supervision by trained staff of the update process in the target environment. As a general security measure Siemens strongly recommends to protect network access with appropriate mechanisms (e.g. firewalls, segmentation, VPN). It is advised to configure the environment according to our operational guidelines in order to run the devices in a protected IT environment. Recommended security guidelines to Secure Substations can be found at:
describes (3)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2019-13944US | medium5.3 | — | ||
A vulnerability has been identified in EN100 Ethernet module DNP3 variant (All versions), EN100 Ethernet module IEC 61850 variant (All versions < V4.37), EN100 Ethernet module IEC1… | ||||
| CVE-2019-13943US | medium6.1 | — | ||
A vulnerability has been identified in EN100 Ethernet module DNP3 variant (All versions), EN100 Ethernet module IEC 61850 variant (All versions < V4.37), EN100 Ethernet module IEC1… | ||||
| CVE-2019-13942US | high7.5 | — | ||
A vulnerability has been identified in EN100 Ethernet module DNP3 variant (All versions), EN100 Ethernet module IEC 61850 variant (All versions < V4.37), EN100 Ethernet module IEC1… | ||||
references
External citations — patches, advisories, analysis.
- SSA-418979: Vulnerabilities in EN100 Ethernet Communication Module - HTML Versionself
- ICS Advisory ICSA-19-344-07 JSONself
- Recommended Practicesexternal
- ICS Advisory ICSA-19-344-07 - Web Versionself
- Recommended Practicesexternal
- Recommended Practicesexternal
- Recommended Practicesexternal
- Recommended Practicesexternal
remediations (18)
- MitigationEN100 Ethernet module DNP3 variant
Block access to port 80/tcp and 443/tcp e.g. with an external firewall.
- MitigationEN100 Ethernet module DNP3 variant
Block access to port 80/tcp and 443/tcp e.g. with an external firewall.
- MitigationEN100 Ethernet module DNP3 variant
Block access to port 80/tcp and 443/tcp e.g. with an external firewall.
- MitigationEN100 Ethernet module IEC 61850 variant
Block access to port 80/tcp and 443/tcp e.g. with an external firewall.
- MitigationEN100 Ethernet module IEC 61850 variant
Block access to port 80/tcp and 443/tcp e.g. with an external firewall.
- MitigationEN100 Ethernet module IEC 61850 variant
Block access to port 80/tcp and 443/tcp e.g. with an external firewall.
- MitigationEN100 Ethernet module IEC104 variant
Block access to port 80/tcp and 443/tcp e.g. with an external firewall.
- MitigationEN100 Ethernet module IEC104 variant
Block access to port 80/tcp and 443/tcp e.g. with an external firewall.
- MitigationEN100 Ethernet module IEC104 variant
Block access to port 80/tcp and 443/tcp e.g. with an external firewall.
- MitigationEN100 Ethernet module Modbus TCP variant
Block access to port 80/tcp and 443/tcp e.g. with an external firewall.
- MitigationEN100 Ethernet module Modbus TCP variant
Block access to port 80/tcp and 443/tcp e.g. with an external firewall.
- MitigationEN100 Ethernet module Modbus TCP variant
Block access to port 80/tcp and 443/tcp e.g. with an external firewall.
- MitigationEN100 Ethernet module PROFINET IO variant
Block access to port 80/tcp and 443/tcp e.g. with an external firewall.
- MitigationEN100 Ethernet module PROFINET IO variant
Block access to port 80/tcp and 443/tcp e.g. with an external firewall.
- MitigationEN100 Ethernet module PROFINET IO variant
Block access to port 80/tcp and 443/tcp e.g. with an external firewall.
- FixedEN100 Ethernet module IEC 61850 variant
Update to V4.37 https://support.industry.siemens.com/cs/us/en/view/109745821
- FixedEN100 Ethernet module IEC 61850 variant
Update to V4.37 https://support.industry.siemens.com/cs/us/en/view/109745821
- FixedEN100 Ethernet module IEC 61850 variant
Update to V4.37 https://support.industry.siemens.com/cs/us/en/view/109745821
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