CVE-2024-45159

{"id": "CVE-2024-45159", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2024-09-05T19:15:13.150", "references": [{"url": "https://github.com/Mbed-TLS/mbedtls/releases/", "tags": ["Release Notes"], "source": "cve@mitre.org"}, {"url": "https://mbed-tls.readthedocs.io/en/latest/security-advisories/", "tags": ["Issue Tracking"], "source": "cve@mitre.org"}, {"url": "https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2024-08-3/", "tags": ["Vendor Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-295"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in Mbed TLS 3.x before 3.6.1. With TLS 1.3, when a server enables optional authentication of the client, if the client-provided certificate does not have appropriate values in if keyUsage or extKeyUsage extensions, then the return value of mbedtls_ssl_get_verify_result() would incorrectly have the MBEDTLS_X509_BADCERT_KEY_USAGE and MBEDTLS_X509_BADCERT_KEY_USAGE bits clear. As a result, an attacker that had a certificate valid for uses other than TLS client authentication would nonetheless be able to use it for TLS client authentication. Only TLS 1.3 servers were affected, and only with optional authentication (with required authentication, the handshake would be aborted with a fatal alert)."}, {"lang": "es", "value": "Se descubri\u00f3 un problema en Mbed TLS 3.x antes de la versi\u00f3n 3.6.1. Con TLS 1.3, cuando un servidor habilita la autenticaci\u00f3n opcional del cliente, si el certificado proporcionado por el cliente no tiene los valores adecuados en las extensiones if keyUsage o extKeyUsage, el valor de retorno de mbedtls_ssl_get_verify_result() tendr\u00eda incorrectamente los bits MBEDTLS_X509_BADCERT_KEY_USAGE y MBEDTLS_X509_BADCERT_KEY_USAGE limpios. Como resultado, un atacante que tuviera un certificado v\u00e1lido para usos distintos a la autenticaci\u00f3n de cliente TLS podr\u00eda usarlo de todos modos para la autenticaci\u00f3n de cliente TLS. Solo los servidores TLS 1.3 se vieron afectados, y solo con autenticaci\u00f3n opcional (con la autenticaci\u00f3n requerida, el protocolo de enlace se cancelar\u00eda con una alerta fatal)."}], "lastModified": "2024-09-19T18:26:24.687", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "21841FE2-FFD3-4EF1-9257-7A31C00B14C2", "versionEndExcluding": "3.6.1", "versionStartIncluding": "3.2.0"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}