CVE-2025-59432

{"id": "CVE-2025-59432", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-59432", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2025-09-22T19:39:54.878581Z"}}], "cvssMetricV40": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 6.6, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "UNREPORTED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "ongres", "product": "scram", "versions": [{"status": "affected", "version": "< 3.2"}]}]}], "published": "2025-09-22T20:15:38.673", "references": [{"url": "https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/security/MessageDigest.html#isEqual(byte%5B%5D,byte%5B%5D)", "source": "security-advisories@github.com"}, {"url": "https://github.com/ongres/scram/commit/e0b0cf99f05406a0d26682c72fcb5728e95124b3", "source": "security-advisories@github.com"}, {"url": "https://github.com/ongres/scram/security/advisories/GHSA-3wfh-36rx-9537", "source": "security-advisories@github.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-208"}, {"lang": "en", "value": "CWE-385"}]}], "descriptions": [{"lang": "en", "value": "SCRAM (Salted Challenge Response Authentication Mechanism) is part of the family of Simple Authentication and Security Layer (SASL, RFC 4422) authentication mechanisms. Prior to version 3.2, a timing attack vulnerability exists in the SCRAM Java implementation. The issue arises because Arrays.equals was used to compare secret values such as client proofs and server signatures. Since Arrays.equals performs a short-circuit comparison, the execution time varies depending on how many leading bytes match. This behavior could allow an attacker to perform a timing side-channel attack and potentially infer sensitive authentication material. All users relying on SCRAM authentication are impacted. This vulnerability has been patched in version 3.1 by replacing Arrays.equals with MessageDigest.isEqual, which ensures constant-time comparison."}, {"lang": "es", "value": "SCRAM (Mecanismo de Autenticaci\u00f3n de Respuesta a Desaf\u00edo Salado) forma parte de la familia de mecanismos de autenticaci\u00f3n de la Capa de Autenticaci\u00f3n y Seguridad Simple (SASL, RFC 4422). Antes de la versi\u00f3n 3.2, existe una vulnerabilidad de ataque de temporizaci\u00f3n en la implementaci\u00f3n Java de SCRAM. El problema surge porque se utiliz\u00f3 Arrays.equals para comparar valores secretos como pruebas del cliente y firmas del servidor. Dado que Arrays.equals realiza una comparaci\u00f3n de cortocircuito, el tiempo de ejecuci\u00f3n var\u00eda dependiendo de cu\u00e1ntos bytes iniciales coincidan. Este comportamiento podr\u00eda permitir a un atacante realizar un ataque de canal lateral de temporizaci\u00f3n y potencialmente inferir material de autenticaci\u00f3n sensible. Todos los usuarios que dependen de la autenticaci\u00f3n SCRAM se ven afectados. Esta vulnerabilidad ha sido parcheada en la versi\u00f3n 3.1 al reemplazar Arrays.equals con MessageDigest.isEqual, lo que asegura una comparaci\u00f3n de tiempo constante."}], "lastModified": "2026-10-11T20:10:00.200", "sourceIdentifier": "security-advisories@github.com"}