CVE-2023-41034

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In affected versions DDFFileParser` and `DefaultDDFFileValidator` (and so `ObjectLoader`) are vulnerable to `XXE Attacks`. A DDF file is a LWM2M format used to store LWM2M object description. Leshan users are impacted only if they parse untrusted DDF files (e.g. if they let external users provide their own model), in that case they MUST upgrade to fixed version. If you parse only trusted DDF file and validate only with trusted xml schema, upgrading is not mandatory. This issue has been fixed in versions 1.5.0 and 2.0.0-M13. Users are advised to upgrade. There are no known workarounds for this vulnerability."}, {"lang": "es", "value": "Eclipse Leshan es una implementaci\u00f3n Java de servidor y cliente de gesti\u00f3n de dispositivos. En las versiones afectadas, 'DDFFileParser' y 'DefaultDDFFileValidator' (y por lo tanto 'ObjectLoader') son vulnerables a 'XXE Attacks'. Un archivo DDF es un formato LWM2M utilizado para almacenar la descripci\u00f3n de objetos LWM2M. Los usuarios de Leshan se ven afectados solo si analizan archivos DDF no confiables (p. ej., si permiten que usuarios externos proporcionen su propio modelo), en ese caso DEBEN actualizar a la versi\u00f3n corregida. Si solo analiza archivos DDF confiables y valida solo con esquemas XML confiables, la actualizaci\u00f3n no es obligatoria. Este problema se ha corregido en las versiones 1.5.0 y 2.0.0-M13. Se aconseja a los usuarios que actualicen. No se conocen soluciones alternativas para esta vulnerabilidad."}], "id": "CVE-2023-41034", "lastModified": "2026-06-17T06:20:12.450", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 4.2, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-41034", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-27T13:05:33.598804Z", "version": "2.0.3"}}]}, "published": "2023-08-31T18:15:09.020", "references": [{"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/eclipse-leshan/leshan/commit/29577d2879ba8e7674c3b216a7f01193fc7ae013"}, {"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/eclipse-leshan/leshan/commit/4d3e63ac271a817f81fba3e3229c519af7a3049c"}, {"source": "security-advisories@github.com", "tags": ["Mitigation", "Third Party Advisory"], "url": "https://github.com/eclipse-leshan/leshan/security/advisories/GHSA-wc9j-gc65-3cm7"}, {"source": "security-advisories@github.com", "tags": ["Product"], "url": "https://github.com/eclipse-leshan/leshan/wiki/Adding-new-objects#the-lwm2m-model"}, {"source": "security-advisories@github.com", "tags": ["Not Applicable"], "url": "https://owasp.org/www-community/vulnerabilities/XML_External_Entity_(XXE)_Processing"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://github.com/eclipse-leshan/leshan/commit/29577d2879ba8e7674c3b216a7f01193fc7ae013"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://github.com/eclipse-leshan/leshan/commit/4d3e63ac271a817f81fba3e3229c519af7a3049c"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mitigation", "Third Party Advisory"], "url": "https://github.com/eclipse-leshan/leshan/security/advisories/GHSA-wc9j-gc65-3cm7"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Product"], "url": "https://github.com/eclipse-leshan/leshan/wiki/Adding-new-objects#the-lwm2m-model"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Not Applicable"], "url": "https://owasp.org/www-community/vulnerabilities/XML_External_Entity_(XXE)_Processing"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-611"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

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