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{"descriptions": [{"lang": "en", "value": "stimulus_reflex is a system to extend the capabilities of both Rails and Stimulus by intercepting user interactions and passing them to Rails over real-time websockets. In affected versions more methods than expected can be called on reflex instances. Being able to call some of them has security implications. To invoke a reflex a websocket message of the following shape is sent: `\\\"target\\\":\\\"[class_name]#[method_name]\\\",\\\"args\\\":[]`. The server will proceed to instantiate `reflex` using the provided `class_name` as long as it extends `StimulusReflex::Reflex`. It then attempts to call `method_name` on the instance with the provided arguments. This is problematic as `reflex.method method_name` can be more methods that those explicitly specified by the developer in their reflex class. A good example is the instance_variable_set method. This vulnerability has been patched in versions 3.4.2 and 3.5.0.rc4. Users unable to upgrade should: see the backing GHSA advisory for mitigation advice."}, {"lang": "es", "value": "stimulus_reflex es un sistema para ampliar las capacidades de Rails y Stimulus interceptando las interacciones del usuario y pas\u00e1ndolas a Rails a trav\u00e9s de websockets en tiempo real. En las versiones afectadas se pueden invocar m\u00e1s m\u00e9todos de los esperados en instancias reflejas. Poder llamar a algunos de ellos tiene implicaciones de seguridad. Para invocar un reflejo, se env\u00eda un mensaje websocket con la siguiente forma: `\\\"target\\\":\\\"[class_name]#[method_name]\\\",\\\"args\\\":[]`. El servidor proceder\u00e1 a crear una instancia de `reflex` utilizando el `class_name` proporcionado siempre que extienda `StimulusReflex::Reflex`. Luego intenta llamar a \"method_name\" en la instancia con los argumentos proporcionados. Esto es problem\u00e1tico ya que `reflex.method method_name` puede contener m\u00e1s m\u00e9todos que los especificados expl\u00edcitamente por el desarrollador en su clase refleja. Un buen ejemplo es el m\u00e9todo instance_variable_set. Esta vulnerabilidad ha sido parcheada en las versiones 3.4.2 y 3.5.0.rc4. Los usuarios que no puedan actualizar deben: consultar el aviso de respaldo de GHSA para obtener consejos de mitigaci\u00f3n."}], "id": "CVE-2024-28121", "lastModified": "2024-11-21T09:05:51.707", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2024-03-12T20:15:08.313", "references": [{"source": "security-advisories@github.com", "url": "http://seclists.org/fulldisclosure/2024/Mar/16"}, {"source": "security-advisories@github.com", "url": "https://github.com/stimulusreflex/stimulus_reflex/blob/0211cad7d60fe96838587f159d657e44cee51b9b/app/channels/stimulus_reflex/channel.rb#L83"}, {"source": "security-advisories@github.com", "url": "https://github.com/stimulusreflex/stimulus_reflex/commit/538582d240439aab76066c72335ea92096cd0c7f"}, {"source": "security-advisories@github.com", "url": "https://github.com/stimulusreflex/stimulus_reflex/releases/tag/v3.4.2"}, {"source": "security-advisories@github.com", "url": "https://github.com/stimulusreflex/stimulus_reflex/releases/tag/v3.5.0.rc4"}, {"source": "security-advisories@github.com", "url": "https://github.com/stimulusreflex/stimulus_reflex/security/advisories/GHSA-f78j-4w3g-4q65"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://seclists.org/fulldisclosure/2024/Mar/16"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://github.com/stimulusreflex/stimulus_reflex/blob/0211cad7d60fe96838587f159d657e44cee51b9b/app/channels/stimulus_reflex/channel.rb#L83"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://github.com/stimulusreflex/stimulus_reflex/commit/538582d240439aab76066c72335ea92096cd0c7f"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://github.com/stimulusreflex/stimulus_reflex/releases/tag/v3.4.2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://github.com/stimulusreflex/stimulus_reflex/releases/tag/v3.5.0.rc4"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://github.com/stimulusreflex/stimulus_reflex/security/advisories/GHSA-f78j-4w3g-4q65"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-470"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

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