CVE-2018-4838

EPSS 1.4%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 1.4%KEV nãoPoC —Patch —

Lifecycle

08 Mar 2018Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

A vulnerability has been identified in EN100 Ethernet module IEC 61850 variant (All versions < V4.30), EN100 Ethernet module DNP3 variant (All versions < V1.04), EN100 Ethernet module PROFINET IO variant (All versions), EN100 Ethernet module Modbus TCP variant (All versions), EN100 Ethernet module IEC 104 variant (All versions < V1.22). The web interface (TCP/80) of affected devices allows an unauthenticated user to upgrade or downgrade the firmware of the device, including to older versions with known vulnerabilities.

Affected products

Siemens AG · EN100 Ethernet module DNP3 variant Siemens AG · EN100 Ethernet module IEC 104 variant Siemens AG · EN100 Ethernet module IEC 61850 variant Siemens AG · EN100 Ethernet module Modbus TCP variant Siemens AG · EN100 Ethernet module PROFINET IO variant

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References

https://cert-portal.siemens.com/productcert/pdf/ssa-845879.pdf https://www.securityfocus.com/bid/103379