CVE-2020-1026

{"containers": {"cna": {"affected": [{"product": "Microsoft Research JavaScript Cryptography Library V1.4", "vendor": "Microsoft", "versions": [{"status": "affected", "version": "unspecified"}]}], "descriptions": [{"lang": "en", "value": "A Security Feature Bypass vulnerability exists in the MSR JavaScript Cryptography Library that is caused by multiple bugs in the library\u00e2\u20ac\u2122s Elliptic Curve Cryptography (ECC) implementation.An attacker could potentially abuse these bugs to learn information about a server\u00e2\u20ac\u2122s private ECC key (a key leakage attack) or craft an invalid ECDSA signature that nevertheless passes as valid.The security update addresses the vulnerability by fixing the bugs disclosed in the ECC implementation, aka 'MSR JavaScript Cryptography Library Security Feature Bypass Vulnerability'."}], "problemTypes": [{"descriptions": [{"description": "Security Feature Bypass", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2020-04-15T15:13:28.000Z", "orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "shortName": "microsoft"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1026"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "secure@microsoft.com", "ID": "CVE-2020-1026", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Microsoft Research JavaScript Cryptography Library V1.4", "version": {"version_data": [{"version_value": ""}]}}]}, "vendor_name": "Microsoft"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "A Security Feature Bypass vulnerability exists in the MSR JavaScript Cryptography Library that is caused by multiple bugs in the library\u00e2\u20ac\u2122s Elliptic Curve Cryptography (ECC) implementation.An attacker could potentially abuse these bugs to learn information about a server\u00e2\u20ac\u2122s private ECC key (a key leakage attack) or craft an invalid ECDSA signature that nevertheless passes as valid.The security update addresses the vulnerability by fixing the bugs disclosed in the ECC implementation, aka 'MSR JavaScript Cryptography Library Security Feature Bypass Vulnerability'."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Security Feature Bypass"}]}]}, "references": {"reference_data": [{"name": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1026", "refsource": "MISC", "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1026"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T06:25:01.084Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1026"}]}]}, "cveMetadata": {"assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "assignerShortName": "microsoft", "cveId": "CVE-2020-1026", "datePublished": "2020-04-15T15:13:28.000Z", "dateReserved": "2019-11-04T00:00:00.000Z", "dateUpdated": "2024-08-04T06:25:01.084Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "Microsoft Research JavaScript Cryptography Library V1.4", "vendor": "Microsoft", "versions": [{"status": "affected", "version": "unspecified"}]}], "source": "secure@microsoft.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:research_javascript_cryptography_library:1.4:*:*:*:*:*:*:*", "matchCriteriaId": "FCC764DA-F8E4-482C-824B-93FCFCD1C2F6", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A Security Feature Bypass vulnerability exists in the MSR JavaScript Cryptography Library that is caused by multiple bugs in the library\u00e2\u20ac\u2122s Elliptic Curve Cryptography (ECC) implementation.An attacker could potentially abuse these bugs to learn information about a server\u00e2\u20ac\u2122s private ECC key (a key leakage attack) or craft an invalid ECDSA signature that nevertheless passes as valid.The security update addresses the vulnerability by fixing the bugs disclosed in the ECC implementation, aka 'MSR JavaScript Cryptography Library Security Feature Bypass Vulnerability'."}, {"lang": "es", "value": "Hay una vulnerabilidad de Omisi\u00f3n de la Caracter\u00edstica de Seguridad en la MSR JavaScript Cryptography Library que es causada por m\u00faltiples bugs en la implementaci\u00f3n de library\u00c3\u00a2\u00e2\u201a\u00ac\u00e2\u201e\u00a2s Elliptic Curve Cryptography (ECC). Un atacante podr\u00eda abusar de estos bugs para obtener informaci\u00f3n sobre la clave privada de un servidor (un ataque de filtrado de claves) o crear una firma ECDSA no v\u00e1lida que, no obstante, se considere v\u00e1lida. La actualizaci\u00f3n de la seguridad aborda la vulnerabilidad al corregir los bugs revelados en la implementaci\u00f3n de la ECC, tambi\u00e9n se conoce como \"MSR JavaScript Cryptography Library Security Feature Bypass Vulnerability\"."}], "id": "CVE-2020-1026", "lastModified": "2026-06-17T03:00:15.193", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "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": "2020-04-15T15:15:20.967", "references": [{"source": "secure@microsoft.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1026"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1026"}], "sourceIdentifier": "secure@microsoft.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-200"}, {"lang": "en", "value": "CWE-347"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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