CVE-2023-34242

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{"affected": [{"affectedData": [{"product": "cilium", "vendor": "cilium", "versions": [{"status": "affected", "version": "< 1.13.4"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*", "matchCriteriaId": "4CCCAA75-0B30-4621-99DA-48D617D3A9B5", "versionEndExcluding": "1.13.4", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to version 1.13.4, when Gateway API is enabled in Cilium, the absence of a check on the namespace in which a ReferenceGrant is created could result in Cilium unintentionally gaining visibility of secrets (including certificates) and services across namespaces. An attacker on an affected cluster can leverage this issue to use cluster secrets that should not be visible to them, or communicate with services that they should not have access to. Gateway API functionality is disabled by default. This vulnerability is fixed in Cilium release 1.13.4. As a workaround, restrict the creation of `ReferenceGrant` resources to admin users by using Kubernetes RBAC."}, {"lang": "es", "value": "Cilium es una soluci\u00f3n de red, observabilidad y seguridad con un plano de datos basado en eBPF. Antes de la versi\u00f3n 1.13.4, cuando la API de puerta de enlace est\u00e1 habilitada en Cilium, la ausencia de una comprobaci\u00f3n en el espacio de nombres en el que se crea una \"ReferenceGrant\" podr\u00eda dar lugar a que Cilium obtuviera involuntariamente visibilidad de secretos (incluidos certificados) y servicios a trav\u00e9s de espacios de nombres. Un atacante en un cl\u00faster afectado puede aprovechar este problema para utilizar secretos de cl\u00faster que no deber\u00edan ser visibles para \u00e9l, o comunicarse con servicios a los que no deber\u00eda tener acceso. La funcionalidad \"Gateway API\" est\u00e1 desactivada por defecto. Esta vulnerabilidad se ha corregido en la versi\u00f3n 1.13.4 de Cilium. Como soluci\u00f3n, restrinja la creaci\u00f3n de recursos \"ReferenceGrant\" a los usuarios administradores mediante Kubernetes RBAC. "}], "id": "CVE-2023-34242", "lastModified": "2026-06-17T06:03:12.363", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "NONE", "baseScore": 3.4, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.7, "impactScore": 1.4, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-34242", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-12-11T21:11:20.726172Z", "version": "2.0.3"}}]}, "published": "2023-06-15T20:15:09.473", "references": [{"source": "security-advisories@github.com", "tags": ["Release Notes"], "url": "https://github.com/cilium/cilium/releases/tag/v1.13.4"}, {"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/cilium/cilium/security/advisories/GHSA-r7wr-4w5q-55m6"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes"], "url": "https://github.com/cilium/cilium/releases/tag/v1.13.4"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/cilium/cilium/security/advisories/GHSA-r7wr-4w5q-55m6"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-200"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

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