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CVE-2021-29431

CVE-2021-29431 · SSRF in Sydent due to missing validation of hostnames

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

Sydent is a reference Matrix identity server. Sydent can be induced to send HTTP GET requests to internal systems, due to lack of parameter validation or IP address blacklisting. It is not possible to exfiltrate data or control request headers, but it might be possible to use the attack to perform an internal port enumeration. This issue has been addressed in in 9e57334, 8936925, 3d531ed, 0f00412. A potential workaround would be to use a firewall to ensure that Sydent cannot reach internal HTTP resources.

CVSS 7.7 · Alta · EPSS 1,2% · Corrección disponible

Publicación
Actualización

Pila tecnológica: python

Productos y versiones afectados

  • sydent

    Versiones
    • < 2.3.0: Afectada

    Sin corrección publicada

  • matrix-sydent PyPI

    Versiones
    • 2.0.0
    • 2.0.1
    • 2.1.0
    • 2.2.0
    Intervalos de versiones afectados
    • ECOSYSTEM: < 2.3.0

    Actualiza a 2.3.0

  • matrix-sydent PyPI

    Versiones
    • 2.0.0
    • 2.0.1
    • 2.1.0
    • 2.2.0
    Intervalos de versiones afectados
    • {"events": [{"introduced": "0"}, {"fixed": "3d531ed50d2fd41ac387f36d44d3fb2c62dd22d3"}, {"fixed": "0f00412017f25619bc36c264b29ea96808bf310a"}, {"fixed": "9e573348d81df8191bbe8c266c01999c9d57cd5f"}, {"fixed": "8936925f561b0c352c2fa922d5097d7245aad00a"}], "repo": "https://github.com/matrix-org/sydent", "type": "GIT"}
    • ECOSYSTEM: < 2.3.0

    Actualiza a 2.3.0

Fuentes originales

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