CVE-2022-31142

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A malicious attacker could estimate the length of one valid bearer token. According to the corresponding RFC 6750, the bearer token has only base64 valid characters, reducing the range of characters for a brute force attack. Version 7.0.2 and 8.0.1 of @fastify/bearer-auth contain a patch. There are currently no known workarounds. The package fastify-bearer-auth, which covers versions 6.0.3 and prior, is also vulnerable starting at version 5.0.1. Users of fastify-bearer-auth should upgrade to a patched version of @fastify/bearer-auth."}, {"lang": "es", "value": "fastify/bearer-auth es un plugin de Fastify para requerir encabezados de autorizaci\u00f3n de portador. fastify/bearer-auth versiones anteriores a 7.0.2 y 8.0.1, no usa de forma segura crypto.timingSafeEqual. Un atacante malicioso podr\u00eda estimar la longitud de un token de portador v\u00e1lido. Seg\u00fan el correspondiente RFC 6750, el token de portador s\u00f3lo presenta caracteres v\u00e1lidos en base64, reduciendo el rango de caracteres para un ataque de fuerza bruta. Las versiones 7.0.2 y 8.0.1 de fastify/bearer-auth contienen un parche. Actualmente no se presentan mitigaciones conocidas. El paquete fastify-bearer-auth, que cubre las versiones 6.0.3 y anteriores, tambi\u00e9n es vulnerable a partir de la versi\u00f3n 5.0.1. 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