> 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/web-cache-deception/cheating-the-cache-by-manipulating-paths.md).

# Tromper le cache en manipulant les chemins

Notes sur le fait de tromper le cache en manipulant les chemins pour les laboratoires PortSwigger Web Security Academy, incluant le flux d'exploitation, les tests de payload, la validation avec Burp Suite et le contexte de remédiation.

### Exploitation du mappage de chemin pour la tromperie du cache Web

#### Objectif du labo

Récupérer \*\*la clé API\*\* de l'utilisateur **carlos**. / Identifiants fournis : **wiener:peter**.

#### Observations

* Dans **Mon compte** (my-account), la \*\*clé API\*\* apparaît **en clair** pour notre propre utilisateur.

<figure><img src="https://3840167291-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-108b38e85bcc7723d3655ed256ab94e6d6ab23ed%2F%7B6D0C2C89-1F6B-48CA-B915-C9EDF0F5E9DE%7D.png?alt=media" alt=""><figcaption></figcaption></figure>

* Au départ, rien n'indique directement (dans la réponse) qu'il y a **mise en cache**.

<figure><img src="https://3840167291-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-29183f864d0e6633e8eec334dd43f232517f9326%2F%7BA44A17EA-B46B-4E3B-89DF-96104A9B1F59%7D.png?alt=media" alt=""><figcaption></figcaption></figure>

* Cependant, en ajoutant des segments à l'URL, l'application continue d'afficher la **my-account** page, ce qui suggère une **logique de mappage des routes** potentiellement compatible avec le cache.

Exemples testés :

* `/my-account/TESTTTTTT` → L'application le traite toujours comme **my-account**

<figure><img src="https://3840167291-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-2b3e00bdbf8e94e2755b444e3c6e8968ff9597eb%2F%7B3B320FBE-E2BE-43DB-8AEC-6223464C1F8E%7D.png?alt=media" alt=""><figcaption></figcaption></figure>

* `/my-account/TESTTT.js` → extension **.js** est accepté et interprété (utile pour tromper les règles de cache)

<figure><img src="https://3840167291-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-3b7e90f784764ff27fd8de94be4cbafb6aca535d%2Fimage%20(3133).png?alt=media" alt=""><figcaption></figcaption></figure>

Depuis le**serveur d’exploitation**, forcer une victime à charger une URL de type « statique » pointant vers my-account :

{% code overflow="wrap" %}

```javascript
<script>
    document.location="https://0afd005204a0683b803d1ce200320070.web-security-academy.net/my-account/jordan.js";
</script>
```

{% endcode %}

<figure><img src="https://3840167291-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-5ee7d2cf564ad6368a92b92c410e95cc212a7ce5%2F%7B6ABD89DC-A971-48F3-8542-76823C922CFC%7D.png?alt=media" alt=""><figcaption></figcaption></figure>

1. En visitant :

* `/my-account/jordan.js`/ on obtient une réponse qui affiche la \*\*clé API de Carlos\*\*.

#### Résultat

La clé API pour **carlos** est affichée via une URL camouflée (avec `.js` l'extension), ce qui vous permet de tirer parti du comportement du cache/de l'acheminement (`/my-account/<quelque_chose>.js`).

<figure><img src="https://3840167291-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-7aed730f89d4e5583776766836cb14dca0d58b14%2F%7BA88CD920-5D43-48A2-834E-F59F2D901B5F%7D.png?alt=media" alt=""><figcaption></figcaption></figure>


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