CVE-2023-23612

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OpenSearch uses JWTs to store role claims obtained from the Identity Provider (IdP) when the authentication backend is SAML or OpenID Connect. There is an issue in how those claims are processed from the JWTs where the leading and trailing whitespace is trimmed, allowing users to potentially claim roles they are not assigned to if any role matches the whitespace-stripped version of the roles they are a member of. This issue is only present for authenticated users, and it requires either the existence of roles that match, not considering leading/trailing whitespace, or the ability for users to create said matching roles. In addition, the Identity Provider must allow leading and trailing spaces in role names. OpenSearch 1.0.0-1.3.7 and 2.0.0-2.4.1 are affected. Users are advised to upgrade to OpenSearch 1.3.8 or 2.5.0. There are no known workarounds for this issue."}, {"lang": "es", "value": "OpenSearch es un motor de b\u00fasqueda RESTful y distribuido de c\u00f3digo abierto. OpenSearch utiliza JWT para almacenar reclamaciones de funciones obtenidas del proveedor de identidad (IdP) cuando el backend de autenticaci\u00f3n es SAML u OpenID Connect. Existe un problema en la forma en que se procesan esas reclamaciones desde los JWT donde se recortan los espacios en blanco iniciales y finales, lo que permite a los usuarios reclamar roles a los que no est\u00e1n asignados si alg\u00fan rol coincide con la versi\u00f3n sin espacios en blanco de los roles de los que son miembros. Este problema solo est\u00e1 presente para usuarios autenticados y requiere la existencia de roles que coincidan, sin considerar los espacios en blanco iniciales/finales, o la capacidad de los usuarios de crear dichos roles coincidentes. Adem\u00e1s, el proveedor de identidad debe permitir espacios iniciales y finales en los nombres de funciones. OpenSearch 1.0.0-1.3.7 y 2.0.0-2.4.1 se ven afectados. Se recomienda a los usuarios que actualicen a OpenSearch 1.3.8 o 2.5.0. No se conocen workarounds para este problema."}], "id": "CVE-2023-23612", "lastModified": "2026-06-17T05:37:34.920", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 4.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 3.4, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-23612", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-03-10T20:59:30.990789Z", "version": "2.0.3"}}]}, "published": "2023-01-26T21:18:14.743", "references": [{"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/opensearch-project/OpenSearch/releases/tag/2.5.0"}, {"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/opensearch-project/security/security/advisories/GHSA-864v-6qj7-62qj"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/opensearch-project/OpenSearch/releases/tag/2.5.0"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/opensearch-project/security/security/advisories/GHSA-864v-6qj7-62qj"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-287"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-287"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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