CVE-2021-42023

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2021-42023", "assignerOrgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77", "assignerShortName": "siemens", "dateUpdated": "2024-08-04T03:22:25.772Z", "dateReserved": "2021-10-06T00:00:00.000Z", "datePublished": "2021-12-14T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77", "shortName": "siemens", "dateUpdated": "2022-11-08T00:00:00.000Z"}, "descriptions": [{"lang": "en", "value": "A vulnerability has been identified in ModelSim Simulation (All versions), Questa Simulation (All versions). The RSA white-box implementation in affected applications insufficiently protects the built-in private keys that are required to decrypt electronic intellectual property (IP) data in accordance with the IEEE 1735 recommended practice. This could allow a sophisticated attacker to discover the keys, bypassing the protection intended by the IEEE 1735 recommended practice."}], "affected": [{"vendor": "Siemens", "product": "ModelSim Simulation", "versions": [{"version": "All versions", "status": "affected"}]}, {"vendor": "Siemens", "product": "Questa Simulation", "versions": [{"version": "All versions", "status": "affected"}]}], "references": [{"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-400332.pdf"}], "problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "description": "CWE-522: Insufficiently Protected Credentials", "cweId": "CWE-522"}]}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T03:22:25.772Z"}, "title": "CVE Program Container", "references": [{"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-400332.pdf", "tags": ["x_transferred"]}]}]}}

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{"affected": [{"affectedData": [{"product": "ModelSim Simulation", "vendor": "Siemens", "versions": [{"status": "affected", "version": "All versions"}]}, {"product": "Questa Simulation", "vendor": "Siemens", "versions": [{"status": "affected", "version": "All versions"}]}], "source": "productcert@siemens.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:siemens:modelsim:*:*:*:*:*:*:*:*", "matchCriteriaId": "1B71482B-C9EC-42CE-84C2-73B4022D86A7", "vulnerable": true}, {"criteria": "cpe:2.3:a:siemens:questa:*:*:*:*:*:*:*:*", "matchCriteriaId": "7F1CF6C5-4501-48C1-96D3-7971F0A8A10C", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability has been identified in ModelSim Simulation (All versions), Questa Simulation (All versions). The RSA white-box implementation in affected applications insufficiently protects the built-in private keys that are required to decrypt electronic intellectual property (IP) data in accordance with the IEEE 1735 recommended practice. This could allow a sophisticated attacker to discover the keys, bypassing the protection intended by the IEEE 1735 recommended practice."}, {"lang": "es", "value": "Se ha identificado una vulnerabilidad en ModelSim Simulation (Todas las versiones), Questa Simulation (Todas las versiones). La implementaci\u00f3n de caja blanca RSA en las aplicaciones afectadas no protege suficientemente las claves privadas incorporadas que son requeridas para descifrar datos electr\u00f3nicos de propiedad intelectual (IP) de acuerdo con la pr\u00e1ctica recomendada por el IEEE 1735. Esto podr\u00eda permitir a un atacante sofisticado detectar las claves, omitiendo la protecci\u00f3n prevista por la pr\u00e1ctica recomendada IEEE 1735"}], "id": "CVE-2021-42023", "lastModified": "2026-06-17T04:09:11.597", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 2.1, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-12-14T12:15:09.917", "references": [{"source": "productcert@siemens.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-400332.pdf"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-400332.pdf"}], "sourceIdentifier": "productcert@siemens.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-522"}], "source": "productcert@siemens.com", "type": "Secondary"}]}

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