{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-31421", "assignerOrgId": "271b6943-45a9-4f3a-ab4e-976f3fa05b5a", "state": "PUBLISHED", "assignerShortName": "elastic", "dateReserved": "2023-04-27T18:54:56.705Z", "datePublished": "2023-10-26T03:10:52.684Z", "dateUpdated": "2024-08-02T14:53:30.714Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Beats", "vendor": "Elastic", "versions": [{"status": "affected", "version": "8.0.0, 8.9.2"}]}, {"defaultStatus": "unaffected", "product": "Elastic Agent", "vendor": "Elastic", "versions": [{"status": "affected", "version": "8.0.0, 8.9.2"}]}, {"defaultStatus": "unaffected", "product": "APM Server", "vendor": "Elastic", "versions": [{"status": "affected", "version": "8.0.0, 8.9.2"}]}, {"defaultStatus": "unaffected", "product": "Fleet Server", "vendor": "Elastic", "versions": [{"status": "affected", "version": "8.0.0, 8.9.2"}]}], "datePublic": "2023-09-19T15:32:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<span style=\"background-color: var(--wht);\">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.</span>"}], "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."}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-295", "description": "CWE-295: Improper Certificate Validation", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "271b6943-45a9-4f3a-ab4e-976f3fa05b5a", "shortName": "elastic", "dateUpdated": "2023-10-26T03:10:52.684Z"}, "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"}, {"url": "https://www.elastic.co/community/security"}], "source": {"discovery": "UNKNOWN"}, "title": "Beats, Elastic Agent, APM Server, and Fleet Server Improper Certificate Validation issue", "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T14:53:30.714Z"}, "title": "CVE Program Container", "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", "tags": ["x_transferred"]}, {"url": "https://www.elastic.co/community/security", "tags": ["x_transferred"]}]}]}}

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