{ "id": "CVE-2021-40142", "sourceIdentifier": "cve@mitre.org", "published": "2021-08-27T07:15:08.630", "lastModified": "2022-09-03T03:54:54.180", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [ { "lang": "en", "value": "In OPC Foundation Local Discovery Server (LDS) before 1.04.402.463, remote attackers can cause a denial of service (DoS) by sending carefully crafted messages that lead to Access of a Memory Location After the End of a Buffer." }, { "lang": "es", "value": "En OPC Foundation Local Discovery Server (LDS) versiones anteriores a 1.04.402.463, unos atacantes remotos pueden causar una denegaci\u00f3n de servicio (DoS) mediante el env\u00edo de mensajes cuidadosamente dise\u00f1ados que conllevan a el Acceso a una Ubicaci\u00f3n de Memoria Despu\u00e9s del Final de un B\u00fafer." } ], "metrics": { "cvssMetricV31": [ { "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", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH" }, "exploitabilityScore": 3.9, "impactScore": 3.6 }, { "source": "cve@mitre.org", "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", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "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", "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0 }, "baseSeverity": "MEDIUM", "exploitabilityScore": 10.0, "impactScore": 2.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-119" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:opcfoundation:local_discover_server:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.04.402.463", "matchCriteriaId": "2BD47A17-5E0C-4BCA-989C-C5CDEAC20A06" } ] } ] }, { "operator": "AND", "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": false, "criteria": "cpe:2.3:h:siemens:simatic_process_historian_opc_ua_server:-:*:*:*:*:*:*:*", "matchCriteriaId": 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"496E3C43-5DA8-4983-8AC6-0F32454E22F3" }, { "vulnerable": true, "criteria": "cpe:2.3:a:siemens:simatic_net_pc:17:-:*:*:*:*:*:*", "matchCriteriaId": "AFBD6DDF-917C-44CC-A944-1945DC7AC9FB" }, { "vulnerable": true, "criteria": "cpe:2.3:a:siemens:simatic_wincc:-:*:*:*:*:*:*:*", "matchCriteriaId": "0F7BB505-A6B6-4200-9602-E4D348E407AB" }, { "vulnerable": true, "criteria": "cpe:2.3:a:siemens:simatic_wincc_runtime:-:*:*:*:professional:*:*:*", "matchCriteriaId": "E6BFBAED-EE2B-4DE4-A76C-824DD15F4608" }, { "vulnerable": true, "criteria": "cpe:2.3:a:siemens:simatic_wincc_unified_scada_runtime:-:*:*:*:*:*:*:*", "matchCriteriaId": "772ECFF2-BB17-4B72-A570-18631521E147" }, { "vulnerable": true, "criteria": "cpe:2.3:a:siemens:telecontrol_server_basic:3.0:*:*:*:*:*:*:*", "matchCriteriaId": "975FC6E7-8FDB-4361-A691-44B26B0CBFD4" } ] } ] } ], "references": [ { "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-321292.pdf", "source": "cve@mitre.org", "tags": [ "Patch", "Third Party Advisory" ] }, { "url": "https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2021-40142.pdf", "source": "cve@mitre.org", "tags": [ "Patch", "Vendor Advisory" ] }, { "url": "https://opcfoundation.org/security-bulletins/", "source": "cve@mitre.org", "tags": [ "Vendor Advisory" ] } ] }