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CVE-2021-32677

CVE-2021-32677 · Cross-Site Request Forgery (CSRF) in FastAPI

Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.

FastAPI is a web framework for building APIs with Python 3.6+ based on standard Python type hints. FastAPI versions lower than 0.65.2 that used cookies for authentication in path operations that received JSON payloads sent by browsers were vulnerable to a Cross-Site Request Forgery (CSRF) attack. In versions lower than 0.65.2, FastAPI would try to read the request payload as JSON even if the content-type header sent was not set to application/json or a compatible JSON media type (e.g. application/geo+json). A request with a content type of text/plain containing JSON data would be accepted and the JSON data would be extracted. Requests with content type text/plain are exempt from CORS preflights, for being considered Simple requests. The browser will execute them right away including cookies, and the text content could be a JSON string that would be parsed and accepted by the FastAPI application. This is fixed in FastAPI 0.65.2. The request data is now parsed as JSON only if the content-type header is application/json or another JSON compatible media type like application/geo+json. It's best to upgrade to the latest FastAPI, but if updating is not possible then a middleware or a dependency that checks the content-type header and aborts the request if it is not application/json or another JSON compatible content type can act as a mitigating workaround.

CVSS 8.2 · Alta · EPSS 0,7% · Corrección disponible

Publicación
Actualización

Pila tecnológica: system · python

Productos y versiones afectados

  • fastapi

    Versiones
    • < 0.65.2: Afectada

    Sin corrección publicada

  • fastapi Debian:12

    Intervalos de versiones afectados
    • ECOSYSTEM: < 0.70.0-1

    Actualiza a 0.70.0-1

  • fastapi Debian:13

    Intervalos de versiones afectados
    • ECOSYSTEM: < 0.70.0-1

    Actualiza a 0.70.0-1

  • fastapi Debian:14

    Intervalos de versiones afectados
    • ECOSYSTEM: < 0.70.0-1

    Actualiza a 0.70.0-1

  • fastapi PyPI

    Versiones
    • 0.1.0
    • 0.1.10
    • 0.1.11
    • 0.1.12
    • 0.1.13
    • 0.1.14
    • 0.1.15
    • 0.1.16
    • 0.1.17
    • 0.1.18
    • 0.1.19
    • 0.1.2
    • 0.1.3
    • 0.1.4
    • 0.1.5
    • 0.1.6
    • 0.1.7
    • 0.1.8
    • 0.1.9
    • 0.10.0
    • 0.10.1
    • 0.10.2
    • 0.11.0
    • 0.12.0
    • 0.12.1
    • 0.13.0
    • 0.14.0
    • 0.15.0
    • 0.16.0
    • 0.17.0
    • 0.18.0
    • 0.19.0
    • 0.2.0
    • 0.2.1
    • 0.20.0
    • 0.20.1
    • 0.21.0
    • 0.22.0
    • 0.23.0
    • 0.24.0
    • 0.25.0
    • 0.26.0
    • 0.27.0
    • 0.27.1
    • 0.27.2
    • 0.28.0
    • 0.29.0
    • 0.29.1
    • 0.3.0
    • 0.30.0
    • 0.30.1
    • 0.31.0
    • 0.32.0
    • 0.33.0
    • 0.34.0
    • 0.35.0
    • 0.36.0
    • 0.37.0
    • 0.38.0
    • 0.38.1
    • 0.39.0
    • 0.4.0
    • 0.40.0
    • 0.41.0
    • 0.42.0
    • 0.43.0
    • 0.44.0
    • 0.44.1
    • 0.45.0
    • 0.46.0
    • 0.47.0
    • 0.47.1
    • 0.48.0
    • 0.49.0
    • 0.49.1
    • 0.49.2
    • 0.5.0
    • 0.5.1
    • 0.50.0
    • 0.51.0
    • 0.52.0
    • 0.53.0
    • 0.53.1
    • 0.53.2
    • 0.54.0
    • 0.54.1
    • 0.54.2
    • 0.55.0
    • 0.55.1
    • 0.56.0
    • 0.56.1
    • 0.57.0
    • 0.58.0
    • 0.58.1
    • 0.59.0
    • 0.6.0
    • 0.6.1
    • 0.6.2
    • 0.6.3
    • 0.6.4
    • 0.60.0
    • 0.60.1
    • 0.60.2
    • 0.61.0
    • 0.61.1
    • 0.61.2
    • 0.62.0
    • 0.63.0
    • 0.64.0
    • 0.65.0
    • 0.65.1
    • 0.7.0
    • 0.7.1
    • 0.8.0
    • 0.9.0
    • 0.9.1
    Intervalos de versiones afectados
    • ECOSYSTEM: < 0.65.2

    Actualiza a 0.65.2

  • fastapi PyPI

    Versiones
    • 0.1.0
    • 0.1.10
    • 0.1.11
    • 0.1.12
    • 0.1.13
    • 0.1.14
    • 0.1.15
    • 0.1.16
    • 0.1.17
    • 0.1.18
    • 0.1.19
    • 0.1.2
    • 0.1.3
    • 0.1.4
    • 0.1.5
    • 0.1.6
    • 0.1.7
    • 0.1.8
    • 0.1.9
    • 0.10.0
    • 0.10.1
    • 0.10.2
    • 0.11.0
    • 0.12.0
    • 0.12.1
    • 0.13.0
    • 0.14.0
    • 0.15.0
    • 0.16.0
    • 0.17.0
    • 0.18.0
    • 0.19.0
    • 0.2.0
    • 0.2.1
    • 0.20.0
    • 0.20.1
    • 0.21.0
    • 0.22.0
    • 0.23.0
    • 0.24.0
    • 0.25.0
    • 0.26.0
    • 0.27.0
    • 0.27.1
    • 0.27.2
    • 0.28.0
    • 0.29.0
    • 0.29.1
    • 0.3.0
    • 0.30.0
    • 0.30.1
    • 0.31.0
    • 0.32.0
    • 0.33.0
    • 0.34.0
    • 0.35.0
    • 0.36.0
    • 0.37.0
    • 0.38.0
    • 0.38.1
    • 0.39.0
    • 0.4.0
    • 0.40.0
    • 0.41.0
    • 0.42.0
    • 0.43.0
    • 0.44.0
    • 0.44.1
    • 0.45.0
    • 0.46.0
    • 0.47.0
    • 0.47.1
    • 0.48.0
    • 0.49.0
    • 0.49.1
    • 0.49.2
    • 0.5.0
    • 0.5.1
    • 0.50.0
    • 0.51.0
    • 0.52.0
    • 0.53.0
    • 0.53.1
    • 0.53.2
    • 0.54.0
    • 0.54.1
    • 0.54.2
    • 0.55.0
    • 0.55.1
    • 0.56.0
    • 0.56.1
    • 0.57.0
    • 0.58.0
    • 0.58.1
    • 0.59.0
    • 0.6.0
    • 0.6.1
    • 0.6.2
    • 0.6.3
    • 0.6.4
    • 0.60.0
    • 0.60.1
    • 0.60.2
    • 0.61.0
    • 0.61.1
    • 0.61.2
    • 0.62.0
    • 0.63.0
    • 0.64.0
    • 0.65.0
    • 0.65.1
    • 0.7.0
    • 0.7.1
    • 0.8.0
    • 0.9.0
    • 0.9.1
    Intervalos de versiones afectados
    • GIT: < fa7e3c996edf2d5482fff8f9d890ac2390dede4d
    • ECOSYSTEM: < 0.65.2

    Actualiza a 0.65.2

  • fastapi Ubuntu:22.04:LTS

    Versiones
    • 0.63.0-2
    • 0.63.0-2ubuntu0.1
    Intervalos de versiones afectados
    • ECOSYSTEM: (−∞, +∞)

    Sin corrección publicada

Fuentes originales

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