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WAGO PFC200 Series

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1. EXECUTIVE SUMMARY

  • CVSS v3 2.7
  • ATTENTION: low attack complexity
  • Vendor: WAGO
  • Equipment: PFC200 Series
  • Vulnerability: Externally Controlled Reference to a Resource in Another Sphere

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow an attacker with administrative privileges to access sensitive files in an unintended, undocumented way.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

WAGO reports the following products are affected:

  • Compact Controller CC100: Versions later than FW19, up to and including FW26
  • Edge Controller: Versions later than FW18, up to and including FW26
  • PFC100: Versions later than FW16, up to and including FW26
  • PFC200: Versions later than FW16, up to and including FW26
  • Touch Panel 600 Advanced Line: Versions later than FW16, up to and including FW26
  • Touch Panel 600 Marine Line: Versions later than FW16, up to and including FW26
  • Touch Panel 600 Standard Line: Versions later than FW16, up to and including FW26

3.2 Vulnerability Overview

3.2.1 Externally Controlled Reference to a Resource in Another Sphere CWE-610

On affected Wago products a remote attacker with administrative privileges can access files which they already have access to through an undocumented local file inclusion. This access is logged in a different log file than expected.

CVE-2023-4089 has been assigned to this vulnerability. A CVSS v3.1 base score of 2.7 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N).

3.3 BACKGROUND

  • CRITICAL INFRASTRUCTURE SECTORS: Commercial Facilities, Critical Manufacturing, Energy, and Transportation Systems
  • CO

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