CVE-2022-31142: fallo de gravedad alta en fastify-bearer-auth
Potential Timing Attack Vector in @fastify/bearer-auth
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7.5epss 1.5%
@fastify/bearer-auth is a Fastify plugin to require bearer Authorization headers. @fastify/bearer-auth prior to versions 7.0.2 and 8.0.1 does not securely use crypto.timingSafeEqual. 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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Productos afectados
fastify · fastify-bearer-authReferencias
https://github.com/fastify/fastify-bearer-auth/commit/0c468a616d7e56126dc468150f6a5a92e530b8e4https://github.com/fastify/fastify-bearer-auth/commit/39353b15409ee99474545f615ffb16180cf3b716https://github.com/fastify/fastify-bearer-auth/commit/f921a0582dc83112039004a9b5041141b50c5b3fhttps://github.com/fastify/fastify-bearer-auth/security/advisories/GHSA-376v-xgjx-7mfrhttps://hackerone.com/reports/1633287