CVE-2021-22659

{"id": "CVE-2021-22659", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.6, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 4.7, "exploitabilityScore": 3.9}]}, "published": "2021-03-25T16:15:14.040", "references": [{"url": "https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1129877/loc/en_US#__highlight", "tags": ["Permissions Required", "Vendor Advisory"], "source": "ics-cert@hq.dhs.gov"}, {"url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-033-01", "tags": ["Third Party Advisory", "US Government Resource"], "source": "ics-cert@hq.dhs.gov"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "ics-cert@hq.dhs.gov", "description": [{"lang": "en", "value": "CWE-120"}]}], "descriptions": [{"lang": "en", "value": "Rockwell Automation MicroLogix 1400 Version 21.6 and below may allow a remote unauthenticated attacker to send a specially crafted Modbus packet allowing the attacker to retrieve or modify random values in the register. If successfully exploited, this may lead to a buffer overflow resulting in a denial-of-service condition. The FAULT LED will flash RED and communications may be lost. Recovery from denial-of-service condition requires the fault to be cleared by the user."}, {"lang": "es", "value": "Rockwell Automation MicroLogix 1400 versi\u00f3n 21.6 y anteriores, puede permitir a un atacante remoto no autenticado enviar un paquete Modbus especialmente dise\u00f1ado que le permita al atacante recuperar o modificar valores aleatorios en el registro. Si es explotado con \u00e9xito, esto puede conllevar a un desbordamiento del b\u00fafer que resulte en una condici\u00f3n de denegaci\u00f3n de servicio. El LED de FALLO parpadear\u00e1 en ROJO y es posible que se pierdan las comunicaciones. Una recuperaci\u00f3n de la condici\u00f3n de denegaci\u00f3n de servicio requiere que el fallo sea eliminado por usuario"}], "lastModified": "2021-03-31T15:56:20.927", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:rockwellautomation:micrologix_1400_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "325F851D-26F6-4361-95A8-1CB68746B5E3", "versionEndIncluding": "21.6"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:rockwellautomation:micrologix_1400:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "196EA0BE-FDF3-46BE-B3DA-5F49208C5D80"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "ics-cert@hq.dhs.gov"}