{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-29T20:47:03.780","vulnerabilities":[{"cve":{"id":"CVE-2023-31421","sourceIdentifier":"security@elastic.co","published":"2023-10-26T04:15:16.000","lastModified":"2024-11-21T08:01:49.633","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"It was discovered that when acting as TLS clients, Beats, Elastic Agent, APM Server, and Fleet Server did not verify whether the server certificate is valid for the target IP address; however, certificate signature validation is still performed. More specifically, when the client is configured to connect to an IP address (instead of a hostname) it does not validate the server certificate's IP SAN values against that IP address and certificate validation fails, and therefore the connection is not blocked as expected."},{"lang":"es","value":"Se descubrió que cuando actuaban como Clientes TLS, Beats, Elastic Agent, APM Server y Fleet Server no verificaban si el certificado del servidor es válido para la dirección IP de destino; sin embargo, aún se realiza la validación de la firma del certificado. Más específicamente, cuando el cliente está configurado para conectarse a una dirección IP (en lugar de un nombre de host), no valida los valores IP SAN del certificado del servidor con esa dirección IP y la validación del certificado falla y, por lo tanto, la conexión no se bloquea como se esperaba."}],"metrics":{"cvssMetricV31":[{"source":"security@elastic.co","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","baseScore":5.9,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":2.2,"impactScore":3.6},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":3.6}]},"weaknesses":[{"source":"security@elastic.co","type":"Secondary","description":[{"lang":"en","value":"CWE-295"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-295"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:elastic:elastic_beats:*:*:*:*:*:*:*:*","versionStartIncluding":"8.0.0","versionEndIncluding":"8.9.2","matchCriteriaId":"F350E05B-DF03-4D1F-95A4-4F6C14DD1640"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:elastic:elastic_agent:*:*:*:*:*:*:*:*","versionStartIncluding":"8.0.0","versionEndIncluding":"8.9.2","matchCriteriaId":"9CB5A9F5-BEFA-472C-A29B-4E71F2B19609"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:elastic:apm_server:*:*:*:*:*:*:*:*","versionStartIncluding":"8.0.0","versionEndIncluding":"8.9.2","matchCriteriaId":"8E6E46E9-87C4-4422-AB28-811252254A88"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:elastic:elastic_fleet_server:*:*:*:*:*:*:*:*","versionStartIncluding":"8.0.0","versionEndIncluding":"8.9.2","matchCriteriaId":"F77F3ECE-C5B8-4BBB-B1B5-986DBCA2C0EE"}]}]}],"references":[{"url":"https://discuss.elastic.co/t/beats-elastic-agent-apm-server-and-fleet-server-8-10-1-security-update-improper-certificate-validation-issue-esa-2023-16/343385","source":"security@elastic.co","tags":["Vendor Advisory"]},{"url":"https://www.elastic.co/community/security","source":"security@elastic.co","tags":["Vendor Advisory"]},{"url":"https://discuss.elastic.co/t/beats-elastic-agent-apm-server-and-fleet-server-8-10-1-security-update-improper-certificate-validation-issue-esa-2023-16/343385","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]},{"url":"https://www.elastic.co/community/security","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]}]}}]}