CVE-2025-55038 (GCVE-0-2025-55038)

Vulnerability from cvelistv5 – Published: 2025-09-23 22:24 – Updated: 2025-09-24 14:07
VLAI
Title
AutomationDirect CLICK PLUS Missing Authorization
Summary
An authorization bypass vulnerability has been discovered in the Click Plus C2-03CPU2 device firmware version 3.60. Through the KOPR protocol utilized by the Remote PLC application, authenticated users with low-level access permissions can exploit this vulnerability to read and modify PLC variables beyond their intended authorization level.
Severity
7.6 (High)
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
6.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-09-24 14:06 UTC
CWE
Assigner
icscert CNA under the icscert root
CNA scorecard B 75/100 over 349 records in the last 180 days details
References
Impacted products
Date Public
2025-09-23 16:00
Credits
Luca Borzacchiello and Diego Zaffaroni of Nozomi Networks reported these vulnerabilities to Automation Direct.
Show details on NVD website
To clipboard 

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                  "value": "\u003cp\u003eAutomationDirect recommends that users update CLICK PLUS and firmware to \u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://www.automationdirect.com/support/software-downloads\"\u003eV3.80.\u003c/a\u003e\u003c/p\u003e\u003cp\u003eIf the update cannot be applied right away, the following compensating controls are recommended until the upgrade can be performed:\u003c/p\u003e\u003cul\u003e\u003cli\u003eNetwork Isolation \u2013 Disconnect the CLICK PLUS PLC from external networks (e.g., the internet or corporate LAN) to reduce exposure.\u003c/li\u003e\u003cli\u003eSecure Communications \u2013 Use only trusted, dedicated internal networks or air-gapped systems for device communication.\u003c/li\u003e\u003cli\u003eAccess Control \u2013 Restrict both physical and logical access to authorized personnel only.\u003c/li\u003e\u003cli\u003eApplication Whitelisting \u2013 Configure whitelisting so that only trusted, pre-approved applications are allowed to run. Block any unauthorized software.\u003c/li\u003e\u003cli\u003eEndpoint Protection \u2013 Use antivirus or EDR tools and configure host-based firewalls to block unauthorized access attempts.\u003c/li\u003e\u003cli\u003eLogging \u0026amp; Monitoring \u2013 Enable and regularly review system logs to detect suspicious or unauthorized activity.\u003c/li\u003e\u003cli\u003eBackup \u0026amp; Recovery \u2013 Maintain secure, tested backups of the PLC and its configurations to minimize downtime in case of an incident.\u003c/li\u003e\u003cli\u003eOngoing Risk Assessment \u2013 Continuously evaluate risks associated with running outdated firmware and adjust compensating measures accordingly.\u003c/li\u003e\u003c/ul\u003e\n\n\u003cbr\u003e"
                }
              ],
              "value": "AutomationDirect recommends that users update CLICK PLUS and firmware to  V3.80. https://www.automationdirect.com/support/software-downloads \n\nIf the update cannot be applied right away, the following compensating controls are recommended until the upgrade can be performed:\n\n  *  Network Isolation \u2013 Disconnect the CLICK PLUS PLC from external networks (e.g., the internet or corporate LAN) to reduce exposure.\n  *  Secure Communications \u2013 Use only trusted, dedicated internal networks or air-gapped systems for device communication.\n  *  Access Control \u2013 Restrict both physical and logical access to authorized personnel only.\n  *  Application Whitelisting \u2013 Configure whitelisting so that only trusted, pre-approved applications are allowed to run. Block any unauthorized software.\n  *  Endpoint Protection \u2013 Use antivirus or EDR tools and configure host-based firewalls to block unauthorized access attempts.\n  *  Logging \u0026 Monitoring \u2013 Enable and regularly review system logs to detect suspicious or unauthorized activity.\n  *  Backup \u0026 Recovery \u2013 Maintain secure, tested backups of the PLC and its configurations to minimize downtime in case of an incident.\n  *  Ongoing Risk Assessment \u2013 Continuously evaluate risks associated with running outdated firmware and adjust compensating measures accordingly."
            }
          ],
          "source": {
            "advisory": "ICSA-25-266-01",
            "discovery": "EXTERNAL"
          },
          "title": "AutomationDirect CLICK PLUS Missing Authorization",
          "x_generator": {
            "engine": "Vulnogram 0.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
        "assignerShortName": "icscert",
        "cveId": "CVE-2025-55038",
        "datePublished": "2025-09-23T22:24:28.676Z",
        "dateReserved": "2025-09-16T20:09:26.660Z",
        "dateUpdated": "2025-09-24T14:07:38.232Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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