CVE-2024-5452

{"id": "CVE-2024-5452", "metrics": {"cvssMetricV30": [{"type": "Secondary", "source": "security@huntr.dev", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2024-06-06T18:15:20.970", "references": [{"url": "https://huntr.com/bounties/486add92-275e-4a7b-92f9-42d84bc759da", "source": "security@huntr.dev"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Primary", "source": "security@huntr.dev", "description": [{"lang": "en", "value": "CWE-915"}]}], "descriptions": [{"lang": "en", "value": "A remote code execution (RCE) vulnerability exists in the lightning-ai/pytorch-lightning library version 2.2.1 due to improper handling of deserialized user input and mismanagement of dunder attributes by the `deepdiff` library. The library uses `deepdiff.Delta` objects to modify application state based on frontend actions. However, it is possible to bypass the intended restrictions on modifying dunder attributes, allowing an attacker to construct a serialized delta that passes the deserializer whitelist and contains dunder attributes. When processed, this can be exploited to access other modules, classes, and instances, leading to arbitrary attribute write and total RCE on any self-hosted pytorch-lightning application in its default configuration, as the delta endpoint is enabled by default."}, {"lang": "es", "value": "Existe una vulnerabilidad de ejecuci\u00f3n remota de c\u00f3digo (RCE) en la versi\u00f3n 2.2.1 de la librer\u00eda Lightning-ai/pytorch-lightning debido al manejo inadecuado de la entrada del usuario deserializada y a la mala administraci\u00f3n de los atributos dunder por parte de la librer\u00eda \"deepdiff\". La librer\u00eda utiliza objetos `deepdiff.Delta` para modificar el estado de la aplicaci\u00f3n en funci\u00f3n de las acciones del frontend. Sin embargo, es posible eludir las restricciones previstas sobre la modificaci\u00f3n de los atributos de dunder, lo que permite a un atacante construir un delta serializado que pasa la lista blanca de deserializadores y contiene atributos de dunder. Cuando se procesa, esto se puede aprovechar para acceder a otros m\u00f3dulos, clases e instancias, lo que lleva a una escritura de atributos arbitraria y un RCE total en cualquier aplicaci\u00f3n pytorch-lightning autohospedada en su configuraci\u00f3n predeterminada, ya que el endpoint delta est\u00e1 habilitado de forma predeterminada."}], "lastModified": "2024-06-07T14:56:05.647", "sourceIdentifier": "security@huntr.dev"}