CVE-2023-5768

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Error reason was an endless blocking when reading incoming frames on link layer \nwith wrong length information of APDU or delayed reception \nof data octets.\n\n\nOnly communication link of affected HCI IEC 60870-5-104 \nis blocked. If attack sequence stops the communication to \nthe previously attacked link gets normal again.\n\n"}, {"lang": "es", "value": "Existe una vulnerabilidad en HCI IEC 60870-5-104 que afecta a las versiones de productos RTU500 series que se enumeran a continuaci\u00f3n. El dise\u00f1o de la trama APDU recibida incompleta o incorrecta puede provocar el bloqueo en la capa de enlace. La raz\u00f3n del error fue un bloqueo interminable al leer tramas entrantes en la capa de enlace con informaci\u00f3n de longitud incorrecta de APDU o recepci\u00f3n retrasada de octetos de datos. Solo se bloquea el enlace de comunicaci\u00f3n del HCI IEC 60870-5-104 afectado. Si la secuencia del ataque se detiene, la comunicaci\u00f3n con el enlace previamente atacado vuelve a ser normal."}], "id": "CVE-2023-5768", "lastModified": "2026-06-17T06:49:19.860", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "cybersecurity@hitachienergy.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2023-12-04T15:15:07.793", "references": [{"source": "cybersecurity@hitachienergy.com", "tags": ["Vendor Advisory"], "url": "https://publisher.hitachienergy.com/preview?DocumentId=8DBD000176&languageCode=en&Preview=true"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://publisher.hitachienergy.com/preview?DocumentId=8DBD000176&languageCode=en&Preview=true"}], "sourceIdentifier": "cybersecurity@hitachienergy.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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