> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/es/web-vulnerabilities/session-puzzling-attack/session-puzzling-simple-jwt-pentesting-web.md).

# Rompecabezas de sesión con JWT simple

Empezamos en un **panel** de inicio de sesión:

<figure><img src="/files/6a8bfba0cd4ba9b1830ab8094ffee5392fe7bb6a" alt=""><figcaption></figcaption></figure>

Vemos la presencia de un **cookie de sesión** en JWT:

<figure><img src="/files/287b3797fc4bcaa95f050d55cffa12ff6939f4b3" alt=""><figcaption></figcaption></figure>

Traducimos en el sitio web: "[jwt.io](https://jwt.io/)" y decodificamos el token:

<figure><img src="/files/0fea3670e83d238960681af6eaa182726c0c49ba" alt=""><figcaption></figcaption></figure>

Ingresamos el nombre de usuario **admin** en el formulario de recuperación de contraseña:

<figure><img src="/files/db939a9d21bc25906a89629dd0f49bb2db1fc8e9" alt=""><figcaption></figcaption></figure>

Interceptamos la solicitud con Burp Suite y en la respuesta obtenemos lo mismo **cookie de sesión** sin ingresar credenciales:

<figure><img src="/files/9d99ee784f23953cb25a63d62c0b8c107831a997" alt=""><figcaption></figcaption></figure>


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