> ## Documentation Index
> Fetch the complete documentation index at: https://rootea.es/llms.txt
> Use this file to discover all available pages before exploring further.

# Shrek

> Writeups verificados de la máquina Shrek de Hack The Box

# Shrek

<p className="machine-summary"><span className="prompt"><code>\$ tldr</code></span> Audio steg + elliptic curve crypto → sudo vi → chown wildcard cron</p>

<div className="machine-meta">
  | ·                 | ·                                                                                                                                                                                                                                                                                      |
  | ----------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
  | Sistema operativo | Linux                                                                                                                                                                                                                                                                                  |
  | Dificultad        | Difícil                                                                                                                                                                                                                                                                                |
  | Vector            | <span className="vbadge vbadge-linux-privesc">Linux privesc</span>                                                                                                                                                                                                                     |
  | IP                | `10.10.10.47`                                                                                                                                                                                                                                                                          |
  | Fecha de retirada | 2020-07-22                                                                                                                                                                                                                                                                             |
  | Skills            | Information Leakage Steganography Challenge - Hidden message in the spectrogram of an audio file (Audacity) Cryptography Challenge - Elliptic Curve (py-seccure) Abusing Sudoers Privilege - User Pivoting (Vi) Abusing Cron Job - Chown Wildcard Exploitation \[Privilege Escalation] |
</div>

## Writeups

| Idioma  | Autor       | Formato | Enlace                                                    |
| ------- | ----------- | ------- | --------------------------------------------------------- |
| 🇪🇸 ES | **S4vitar** | Vídeo   | [Abrir](https://www.youtube.com/watch?v=C2VOcO8MdmI)      |
| 🇬🇧 EN | **0xdf**    | Texto   | [Abrir](https://0xdf.gitlab.io/2020/07/22/htb-shrek.html) |
| 🇬🇧 EN | **IppSec**  | Vídeo   | [Abrir](https://www.youtube.com/watch?v=tI592BjTd4o)      |

## Recursos por skill

Documentación curada para cada técnica que aparece en la columna *Skills* de arriba. Fuentes: HackTricks, GTFOBins, PortSwigger, etc.

| Skill                      | Fuente     | Enlace                                                                                      |
| -------------------------- | ---------- | ------------------------------------------------------------------------------------------- |
| Information Leakage        | HackTricks | [Abrir](https://book.hacktricks.wiki/en/pentesting-web/information-leak.html)               |
| Steganography (Stego)      | HackTricks | [Abrir](https://book.hacktricks.wiki/en/crypto-and-stego/stego-tricks.html)                 |
| Port Forwarding / Pivoting | HackTricks | [Abrir](https://book.hacktricks.wiki/en/generic-hacking/tunneling-and-port-forwarding.html) |

## Si te gustó esta máquina, prueba

* [Horizontall](/htb/machines/linux/facil/horizontall) — Linux, Fácil
* [Kotarak](/htb/machines/linux/dificil/kotarak) — Linux, Difícil
* [Acute](/htb/machines/windows/dificil/acute) — Windows, Difícil
* [TimeLapse](/htb/machines/windows/facil/timelapse) — Windows, Fácil
* [Talkative](/htb/machines/linux/dificil/talkative) — Linux, Difícil

***

## Comentarios y truquillos

¿Algo no funcionó del writeup oficial? ¿Has encontrado un truco mejor? Compártelo aquí — los comentarios viven en [GitHub Discussions](https://github.com/FFuson/HTB_Writeups/discussions).

<div className="rootea-giscus-wrap" data-giscus-term="machine:shrek" data-giscus-lang="es" />

*Última actualización: 2026-06-07*

<script type="application/ld+json">
  {`{"@context":"https://schema.org","@type":"TechArticle","headline":"Shrek — HTB Writeup Index","name":"Shrek","url":"https://rootea.es/htb/machines/linux/dificil/shrek","inLanguage":"es","datePublished":"2020-07-22","dateModified":"2026-06-07","about":{"@type":"Thing","name":"Hack The Box (HTB)"},"keywords":"Information Leakage, Steganography (Stego), Port Forwarding / Pivoting","isPartOf":{"@type":"WebSite","name":"rootea.es","url":"https://rootea.es"},"author":{"@type":"Organization","name":"rootea.es"},"proficiencyLevel":"Difícil"}`}
</script>

<script type="application/ld+json">
  {`{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Inicio","item":"https://rootea.es"},{"@type":"ListItem","position":2,"name":"Linux","item":"https://rootea.es/htb/machines/linux/dificil/index"},{"@type":"ListItem","position":3,"name":"Difícil","item":"https://rootea.es/htb/machines/linux/dificil/index"},{"@type":"ListItem","position":4,"name":"Shrek","item":"https://rootea.es/htb/machines/linux/dificil/shrek"}]}`}
</script>