CVE-2018-4850

{"containers": {"cna": {"affected": [{"product": "SIMATIC S7-400 (incl. F) CPU hardware version 4.0 and below, SIMATIC S7-400 (incl. F) CPU hardware version 5.0, SIMATIC S7-400H CPU hardware version 4.5 and below", "vendor": "Siemens AG", "versions": [{"status": "affected", "version": "SIMATIC S7-400 (incl. F) CPU hardware version 4.0 and below : All versions"}, {"status": "affected", "version": "SIMATIC S7-400 (incl. F) CPU hardware version 5.0 : All firmware versions < V5.2"}, {"status": "affected", "version": "SIMATIC S7-400H CPU hardware version 4.5 and below : All versions"}]}], "datePublic": "2018-05-15T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "A vulnerability has been identified in SIMATIC S7-400 (incl. F) CPU hardware version 4.0 and below (All versions), SIMATIC S7-400 (incl. F) CPU hardware version 5.0 (All firmware versions < V5.2), SIMATIC S7-400H CPU hardware version 4.5 and below (All versions). The affected CPUs improperly validate S7 communication packets which could cause a Denial-of-Service condition of the CPU. The CPU will remain in DEFECT mode until manual restart."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-20", "description": "CWE-20: Improper Input Validation", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2018-05-22T09:57:01.000Z", "orgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77", "shortName": "siemens"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-914382.pdf"}, {"name": "104217", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/104217"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://www.siemens.com/global/en/home/products/services/cert.html#SecurityPublications"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "productcert@siemens.com", "DATE_PUBLIC": "2018-05-15T00:00:00", "ID": "CVE-2018-4850", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "SIMATIC S7-400 (incl. F) CPU hardware version 4.0 and below, SIMATIC S7-400 (incl. F) CPU hardware version 5.0, SIMATIC S7-400H CPU hardware version 4.5 and below", "version": {"version_data": [{"version_value": "SIMATIC S7-400 (incl. F) CPU hardware version 4.0 and below : All versions"}, {"version_value": "SIMATIC S7-400 (incl. F) CPU hardware version 5.0 : All firmware versions < V5.2"}, {"version_value": "SIMATIC S7-400H CPU hardware version 4.5 and below : All versions"}]}}]}, "vendor_name": "Siemens AG"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "A vulnerability has been identified in SIMATIC S7-400 (incl. F) CPU hardware version 4.0 and below (All versions), SIMATIC S7-400 (incl. F) CPU hardware version 5.0 (All firmware versions < V5.2), SIMATIC S7-400H CPU hardware version 4.5 and below (All versions). The affected CPUs improperly validate S7 communication packets which could cause a Denial-of-Service condition of the CPU. The CPU will remain in DEFECT mode until manual restart."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-20: Improper Input Validation"}]}]}, "references": {"reference_data": [{"name": "https://cert-portal.siemens.com/productcert/pdf/ssa-914382.pdf", "refsource": "CONFIRM", "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-914382.pdf"}, {"name": "104217", "refsource": "BID", "url": "http://www.securityfocus.com/bid/104217"}, {"name": "https://www.siemens.com/global/en/home/products/services/cert.html#SecurityPublications", "refsource": "CONFIRM", "url": "https://www.siemens.com/global/en/home/products/services/cert.html#SecurityPublications"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T05:18:26.561Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-914382.pdf"}, {"name": "104217", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/104217"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://www.siemens.com/global/en/home/products/services/cert.html#SecurityPublications"}]}]}, "cveMetadata": {"assignerOrgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77", "assignerShortName": "siemens", "cveId": "CVE-2018-4850", "datePublished": "2018-05-16T17:00:00.000Z", "dateReserved": "2018-01-02T00:00:00.000Z", "dateUpdated": "2024-09-16T22:46:02.128Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "SIMATIC S7-400 (incl. F) CPU hardware version 4.0 and below, SIMATIC S7-400 (incl. F) CPU hardware version 5.0, SIMATIC S7-400H CPU hardware version 4.5 and below", "vendor": "Siemens AG", "versions": [{"status": "affected", "version": "SIMATIC S7-400 (incl. F) CPU hardware version 4.0 and below : All versions"}, {"status": "affected", "version": "SIMATIC S7-400 (incl. F) CPU hardware version 5.0 : All firmware versions < V5.2"}, {"status": "affected", "version": "SIMATIC S7-400H CPU hardware version 4.5 and below : All versions"}]}], "source": "productcert@siemens.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:siemens:simatic_s7-400_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "3F8B29A7-5912-4815-B1DA-595A980ED365", "versionEndIncluding": "4.0", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:siemens:simatic_s7-400:-:*:*:*:*:*:*:*", "matchCriteriaId": "8F97B67B-4516-4AD9-B33C-7F480EE0DB4D", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:siemens:simatic_s7-400_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "A4C0C1ED-74B7-4E4B-B982-062176B7DA2D", "versionEndExcluding": "5.2", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:siemens:simatic_s7-400:-:*:*:*:*:*:*:*", "matchCriteriaId": "8F97B67B-4516-4AD9-B33C-7F480EE0DB4D", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:siemens:simatic_s7-400h_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "F150F79A-3843-4A31-8343-75DAF186030F", "versionEndIncluding": "4.5", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:siemens:simatic_s7-400h:-:*:*:*:*:*:*:*", "matchCriteriaId": "1D1CCAFD-1D34-4893-9B3E-76CAD323179A", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability has been identified in SIMATIC S7-400 (incl. F) CPU hardware version 4.0 and below (All versions), SIMATIC S7-400 (incl. F) CPU hardware version 5.0 (All firmware versions < V5.2), SIMATIC S7-400H CPU hardware version 4.5 and below (All versions). The affected CPUs improperly validate S7 communication packets which could cause a Denial-of-Service condition of the CPU. The CPU will remain in DEFECT mode until manual restart."}, {"lang": "es", "value": "Se ha identificado una vulnerabilidad en SIMATIC S7-400 (incl. F) CPU en versiones de hardware 4.0 y anteriores (todas las versiones), SIMATIC S7-400 (incl. F) CPU en versiones de hardware 5.0 (todas las versiones anteriores a la V5.2), SIMATIC S7-400H CPU en versiones de hardware 4.5 y anteriores (todas las versiones). Las CPU afectadas validan incorrectamente los paquetes de comunicaci\u00f3n S7 que podr\u00edan provocar una condici\u00f3n de denegaci\u00f3n de servicio (DoS) en la CPU. La CPU continuar\u00e1 en modo DEFECT hasta que se reinicie manualmente."}], "id": "CVE-2018-4850", "lastModified": "2026-06-17T01:59:10.100", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-05-16T17:29:00.387", "references": [{"source": "productcert@siemens.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/104217"}, {"source": "productcert@siemens.com", "tags": ["Vendor Advisory"], "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-914382.pdf"}, {"source": "productcert@siemens.com", "tags": ["Vendor Advisory"], "url": "https://www.siemens.com/global/en/home/products/services/cert.html#SecurityPublications"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/104217"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-914382.pdf"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.siemens.com/global/en/home/products/services/cert.html#SecurityPublications"}], "sourceIdentifier": "productcert@siemens.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "productcert@siemens.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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