CVE-2025-55038

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-55038", "assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "state": "PUBLISHED", "assignerShortName": "icscert", "dateReserved": "2025-09-16T20:09:26.660Z", "datePublished": "2025-09-23T22:24:28.676Z", "dateUpdated": "2025-09-24T14:07:38.232Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "CLICK PLUS C0-0x CPU firmware", "vendor": "AutomationDirect", "versions": [{"lessThan": "v3.71", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "CLICK PLUS C0-1x CPU firmware", "vendor": "AutomationDirect", "versions": [{"lessThan": "v3.71", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "CLICK PLUS C2-x CPU firmware", "vendor": "AutomationDirect", "versions": [{"lessThan": "v3.71", "status": "affected", "version": "0", "versionType": "custom"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Luca Borzacchiello and Diego Zaffaroni of Nozomi Networks reported these vulnerabilities to Automation Direct."}], "datePublic": "2025-09-23T16:00:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<span style=\"background-color: rgb(255, 255, 255);\">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.</span>"}], "value": "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."}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 7.6, "baseSeverity": "HIGH", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "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", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}, {"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-862", "description": "CWE-862 Missing Authorization", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "shortName": "icscert", "dateUpdated": "2025-09-23T22:24:28.676Z"}, "references": [{"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-25-266-01"}, {"url": "https://www.automationdirect.com/support/software-downloads"}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>AutomationDirect recommends that users update CLICK PLUS and firmware to <a target=\"_blank\" rel=\"nofollow\" href=\"https://www.automationdirect.com/support/software-downloads\">V3.80.</a></p><p>If the update cannot be applied right away, the following compensating controls are recommended until the upgrade can be performed:</p><ul><li>Network Isolation \u2013 Disconnect the CLICK PLUS PLC from external networks (e.g., the internet or corporate LAN) to reduce exposure.</li><li>Secure Communications \u2013 Use only trusted, dedicated internal networks or air-gapped systems for device communication.</li><li>Access Control \u2013 Restrict both physical and logical access to authorized personnel only.</li><li>Application Whitelisting \u2013 Configure whitelisting so that only trusted, pre-approved applications are allowed to run. Block any unauthorized software.</li><li>Endpoint Protection \u2013 Use antivirus or EDR tools and configure host-based firewalls to block unauthorized access attempts.</li><li>Logging &amp; Monitoring \u2013 Enable and regularly review system logs to detect suspicious or unauthorized activity.</li><li>Backup &amp; Recovery \u2013 Maintain secure, tested backups of the PLC and its configurations to minimize downtime in case of an incident.</li><li>Ongoing Risk Assessment \u2013 Continuously evaluate risks associated with running outdated firmware and adjust compensating measures accordingly.</li></ul>\n\n<br>"}], "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 & Monitoring \u2013 Enable and regularly review system logs to detect suspicious or unauthorized activity.\n * Backup & 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"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-09-24T14:06:10.499891Z", "id": "CVE-2025-55038", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-09-24T14:07:38.232Z"}}]}}

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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 & Monitoring \u2013 Enable and regularly review system logs to detect suspicious or unauthorized activity.\n * Backup & 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.", "supportingMedia": [{"type": "text/html", "value": "<p>AutomationDirect recommends that users update CLICK PLUS and firmware to <a target=\"_blank\" rel=\"nofollow\" href=\"https://www.automationdirect.com/support/software-downloads\">V3.80.</a></p><p>If the update cannot be applied right away, the following compensating controls are recommended until the upgrade can be performed:</p><ul><li>Network Isolation \u2013 Disconnect the CLICK PLUS PLC from external networks (e.g., the internet or corporate LAN) to reduce exposure.</li><li>Secure Communications \u2013 Use only trusted, dedicated internal networks or air-gapped systems for device communication.</li><li>Access Control \u2013 Restrict both physical and logical access to authorized personnel only.</li><li>Application Whitelisting \u2013 Configure whitelisting so that only trusted, pre-approved applications are allowed to run. Block any unauthorized software.</li><li>Endpoint Protection \u2013 Use antivirus or EDR tools and configure host-based firewalls to block unauthorized access attempts.</li><li>Logging &amp; Monitoring \u2013 Enable and regularly review system logs to detect suspicious or unauthorized activity.</li><li>Backup &amp; Recovery \u2013 Maintain secure, tested backups of the PLC and its configurations to minimize downtime in case of an incident.</li><li>Ongoing Risk Assessment \u2013 Continuously evaluate risks associated with running outdated firmware and adjust compensating measures accordingly.</li></ul>\n\n<br>", "base64": false}]}], "datePublic": "2025-09-23T16:00:00.000Z", "references": [{"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-25-266-01"}, {"url": "https://www.automationdirect.com/support/software-downloads"}], "x_generator": {"engine": "Vulnogram 0.2.0"}, "descriptions": [{"lang": "en", "value": "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.", "supportingMedia": [{"type": "text/html", "value": "<span style=\"background-color: rgb(255, 255, 255);\">An authorization bypass vulnerability has been discovered in the Click Plus C2-03CPU2 device firmware version 3.60. 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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "CLICK PLUS C0-0x CPU firmware", "vendor": "AutomationDirect", "versions": [{"lessThan": "v3.71", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "CLICK PLUS C0-1x CPU firmware", "vendor": "AutomationDirect", "versions": [{"lessThan": "v3.71", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "CLICK PLUS C2-x CPU firmware", "vendor": "AutomationDirect", "versions": [{"lessThan": "v3.71", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "ics-cert@hq.dhs.gov"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Una vulnerabilidad de omisi\u00f3n de autorizaci\u00f3n ha sido descubierta en el firmware versi\u00f3n 3.60 del dispositivo Click Plus C2-03CPU2. A trav\u00e9s del protocolo KOPR utilizado por la aplicaci\u00f3n Remote PLC, usuarios autenticados con permisos de acceso de bajo nivel pueden explotar esta vulnerabilidad para leer y modificar variables del PLC m\u00e1s all\u00e1 de su nivel de autorizaci\u00f3n previsto."}], "id": "CVE-2025-55038", "lastModified": "2026-10-18T21:10:00.120", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 5.2, "source": "ics-cert@hq.dhs.gov", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.6, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "ics-cert@hq.dhs.gov", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-55038", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2025-09-24T14:06:10.499891Z", "version": "2.0.3"}}]}, "published": "2025-09-23T23:15:30.497", "references": [{"source": "ics-cert@hq.dhs.gov", "url": "https://www.automationdirect.com/support/software-downloads"}, {"source": "ics-cert@hq.dhs.gov", "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-25-266-01"}], "sourceIdentifier": "ics-cert@hq.dhs.gov", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-862"}], "source": "ics-cert@hq.dhs.gov", "type": "Secondary"}]}

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{"created": "2025-09-25T08:22:13.698736+00:00", "updated": "2025-09-25T08:22:13.698808+00:00", "vendors": ["automationdirect", "automationdirect$PRODUCT$click_plus"]}