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CVE-2026-32133

Estado: AnalizadaAlta (7.8)—

2FAuth is a web app to manage Two-Factor Authentication (2FA) accounts and generate their security codes. Prior to 6.1.0, a blind SSRF vulnerability exists in 2FAuth that allows authenticated users to make arbitrary HTTP requests from the server to internal networks and cloud metadata endpoints. The image parameter in OTP URL is not properly validated for internal / private IP addresses before making HTTP requests. While the previous fix added response validation to ensure only valid images are stored but HTTP request is still made to arbitrary URLs before this validation occurs. This vulnerability is fixed in 6.1.0.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

SSRF en parámetro 'image' de URL OTP sin validación de IPs internas (CWE-918), permite requests arbitrarias desde servidor. Vector CVSS AV:N/PR:N/UI:N confirma explotabilidad remota sin autenticación; permite SSRF y reconocimiento de metadata en cloud.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Vulnerability ScanningSSL/TLS InspectionPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkFilter Network Traffic

Tecnologías afectadas (1)

2fauth — 2fauth

CWE

Referencias

JSON original (NVD)

Mostrar
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      "value": "2FAuth is a web app to manage Two-Factor Authentication (2FA) accounts and generate their security codes. Prior to 6.1.0, a blind SSRF vulnerability exists in 2FAuth that allows authenticated users to make arbitrary HTTP requests from the server to internal networks and cloud metadata endpoints. The image parameter in OTP URL is not properly validated for internal / private IP addresses before making HTTP requests. While the previous fix added response validation to ensure only valid images are stored but HTTP request is still made to arbitrary URLs before this validation occurs. This vulnerability is fixed in 6.1.0."
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      "value": "2FAuth es una aplicación web para gestionar cuentas de Autenticación de Dos Factores (2FA) y generar sus códigos de seguridad. Antes de la versión 6.1.0, existe una vulnerabilidad SSRF ciega en 2FAuth que permite a los usuarios autenticados realizar solicitudes HTTP arbitrarias desde el servidor a redes internas y puntos finales de metadatos en la nube. El parámetro 'image' en la URL de OTP no se valida correctamente para direcciones IP internas / privadas antes de realizar solicitudes HTTP. Aunque la corrección anterior añadió validación de respuesta para asegurar que solo se almacenaran imágenes válidas, la solicitud HTTP aún se realiza a URLs arbitrarias antes de que ocurra esta validación. Esta vulnerabilidad se corrigió en la versión 6.1.0."
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  "lastModified": "2026-06-17T10:35:11.697",
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