CVE-2020-15787

{"containers": {"cna": {"affected": [{"product": "SIMATIC HMI Unified Comfort Panels", "vendor": "Siemens", "versions": [{"status": "affected", "version": "All versions <= V16"}]}], "descriptions": [{"lang": "en", "value": "A vulnerability has been identified in SIMATIC HMI Unified Comfort Panels (All versions <= V16). Affected devices insufficiently validate authentication attempts as the information given can be truncated to match only a set number of characters versus the whole provided string. This could allow a remote attacker to discover user passwords and obtain access to the Sm@rt Server via a brute-force attack."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-305", "description": "CWE-305: Authentication Bypass by Primary Weakness", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-06-08T19:47:15.000Z", "orgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77", "shortName": "siemens"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-542525.pdf"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "productcert@siemens.com", "ID": "CVE-2020-15787", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "SIMATIC HMI Unified Comfort Panels", "version": {"version_data": [{"version_value": "All versions <= V16"}]}}]}, "vendor_name": "Siemens"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "A vulnerability has been identified in SIMATIC HMI Unified Comfort Panels (All versions <= V16). Affected devices insufficiently validate authentication attempts as the information given can be truncated to match only a set number of characters versus the whole provided string. This could allow a remote attacker to discover user passwords and obtain access to the Sm@rt Server via a brute-force attack."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-305: Authentication Bypass by Primary Weakness"}]}]}, "references": {"reference_data": [{"name": "https://cert-portal.siemens.com/productcert/pdf/ssa-542525.pdf", "refsource": "MISC", "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-542525.pdf"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T13:22:30.904Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-542525.pdf"}]}]}, "cveMetadata": {"assignerOrgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77", "assignerShortName": "siemens", "cveId": "CVE-2020-15787", "datePublished": "2020-09-09T18:11:40.000Z", "dateReserved": "2020-07-15T00:00:00.000Z", "dateUpdated": "2024-08-04T13:22:30.904Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "SIMATIC HMI Unified Comfort Panels", "vendor": "Siemens", "versions": [{"status": "affected", "version": "All versions <= V16"}]}], "source": "productcert@siemens.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:siemens:simatic_hmi_united_comfort_panels_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "DC20A46A-6B84-48E3-8E53-715F13BDFD4B", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:siemens:simatic_hmi_united_comfort_panels:-:*:*:*:*:*:*:*", "matchCriteriaId": "2B1E4ACE-F6FE-4706-9720-89C3773AFDC4", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability has been identified in SIMATIC HMI Unified Comfort Panels (All versions <= V16). Affected devices insufficiently validate authentication attempts as the information given can be truncated to match only a set number of characters versus the whole provided string. This could allow a remote attacker to discover user passwords and obtain access to the Sm@rt Server via a brute-force attack."}, {"lang": "es", "value": "Se ha identificado una vulnerabilidad en SIMATIC HMI United Comfort Panels (todas las versiones anteriores o iguales a la versi\u00f3n V16). Los dispositivos afectados validan de manera insuficiente los intentos de autenticaci\u00f3n, ya que la informaci\u00f3n entregada puede ser truncada para que coincida solo con un n\u00famero determinado de caracteres frente a la cadena completa proporcionada. Esto podr\u00eda permitir a un atacante remoto detectar las contrase\u00f1as de los usuarios y obtener acceso al Servidor Sm@rt mediante un ataque de fuerza bruta"}], "id": "CVE-2020-15787", "lastModified": "2026-06-17T02:57:11.447", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-09-09T19:15:19.990", "references": [{"source": "productcert@siemens.com", "tags": ["Vendor Advisory"], "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-542525.pdf"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-542525.pdf"}], "sourceIdentifier": "productcert@siemens.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-305"}], "source": "productcert@siemens.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-287"}], "source": "nvd@nist.gov", "type": "Secondary"}]}

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