CVE-2017-2773

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Incomplete validation logic in JSON Web Token (JWT) libraries can allow unprivileged attackers to impersonate other users in multiple components included in PCF Elastic Runtime, aka an \"Unauthenticated JWT signing algorithm in multiple components\" issue."}, {"lang": "es", "value": "Se ha descubierto un problema en Pivotal PCF Elastic Runtime en versiones 1.6.x anteriores a la 1.6.60, versiones 1.7.x anteriores a la 1.7.41, versiones 1.8.x anteriores a la 1.8.23 y versiones 1.9.x anteriores a la 1.9.1. La l\u00f3gica de validaci\u00f3n incompleta en las bibliotecas JSON Web Token (JWT) puede permitir que atacantes no privilegiados suplanten a otros usuarios en m\u00faltiples componentes incluidos en PCF Elastic Runtime. Esto tambi\u00e9n se conoce como problema \"Unauthenticated JWT signing algorithm in multiple components\"."}], "id": "CVE-2017-2773", "lastModified": "2026-06-17T01:16:49.260", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2017-06-13T06:29:00.300", "references": [{"source": "security_alert@emc.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/97135"}, {"source": "security_alert@emc.com", "tags": ["Mitigation", "Vendor Advisory"], "url": "https://pivotal.io/security/cve-2017-2773"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/97135"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mitigation", "Vendor Advisory"], "url": "https://pivotal.io/security/cve-2017-2773"}], "sourceIdentifier": "security_alert@emc.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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