{ "id": "CVE-2021-21002", "sourceIdentifier": "info@cert.vde.com", "published": "2021-06-25T19:15:08.587", "lastModified": "2024-11-21T05:47:22.927", "vulnStatus": "Modified", "cveTags": [], "descriptions": [ { "lang": "en", "value": "In Phoenix Contact FL COMSERVER UNI in versions < 2.40 a invalid Modbus exception response can lead to a temporary denial of service." }, { "lang": "es", "value": "En Phoenix Contact FL COMSERVER UNI en versiones anteriores a 2.40, una respuesta de excepci\u00f3n Modbus no v\u00e1lida puede conllevar a una denegaci\u00f3n de servicio temporal" } ], "metrics": { "cvssMetricV31": [ { "source": "info@cert.vde.com", "type": "Secondary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH" }, "exploitabilityScore": 3.9, "impactScore": 3.6 }, { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH" }, "exploitabilityScore": 3.9, "impactScore": 3.6 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "baseScore": 5.0, "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "PARTIAL" }, "baseSeverity": "MEDIUM", "exploitabilityScore": 10.0, "impactScore": 2.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "info@cert.vde.com", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-772" } ] } ], "configurations": [ { "operator": "AND", "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:phoenixcontact:fl_comserver_uni_232\\/422\\/485_firmware:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.40", "matchCriteriaId": "3023023F-972B-4C84-B7B6-171CAA6837C1" } ] }, { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": false, "criteria": "cpe:2.3:h:phoenixcontact:fl_comserver_uni_232\\/422\\/485:-:*:*:*:*:*:*:*", "matchCriteriaId": "C89572EB-2036-4F7F-9C43-419866640274" } ] } ] }, { "operator": "AND", "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:phoenixcontact:fl_comserver_uni_232\\/422\\/485-t_firmware:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.40", "matchCriteriaId": "C2457A4F-1FC9-4C03-BCC9-E9A11FFD5CD9" } ] }, { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": false, "criteria": "cpe:2.3:h:phoenixcontact:fl_comserver_uni_232\\/422\\/485-t:-:*:*:*:*:*:*:*", "matchCriteriaId": "CC1C16BB-64BC-4751-825C-2C17181E8F5B" } ] } ] } ], "references": [ { "url": "https://cert.vde.com/en-us/advisories/vde-2021-022", "source": "info@cert.vde.com", "tags": [ "Third Party Advisory" ] }, { "url": "https://cert.vde.com/en-us/advisories/vde-2021-022", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ] } ] }