CVE-2018-4840 Information

Description

A vulnerability has been identified in Siemens DIGSI 4 (All versions V4.92) EN100 Ethernet module IEC 61850 variant (All versions V4.30) EN100 Ethernet module PROFINET IO variant (All versions) EN100 Ethernet module Modbus TCP variant (All versions) EN100 Ethernet module DNP3 variant (All versions) EN100 Ethernet module IEC 104 variant (All versions). The device engineering mechanism allows an unauthenticated remote user to upload a modified device configuration overwriting access authorization passwords.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Reference

https://cert-portal.siemens.com/productcert/pdf/ssa-203306.pdf https://ics-cert.us-cert.gov/advisories/ICSA-18-067-01

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.5