> 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-vulnerabilities/insecure-direct-object-reference-idor-attack/idors-techniques-pentesting-web.md).

# Techniques IDOR

> Pour exploiter une vulnérabilité IDOR, un attaquant peut essayer de **modifier l'identifiant d'un objet** dans l'URL ou utiliser un outil automatisé pour tester différentes valeurs. Si l'attaquant trouve un identifiant qui permet d'accéder à une ressource qui ne devrait pas être disponible, la vulnérabilité IDOR a été exploitée avec succès.

<figure><img src="/files/e8a5efb4db5994a301554ae6b946d67d280a6bd1" alt="" width="563"><figcaption></figcaption></figure>

<figure><img src="/files/bf10878ecab248dd570ae937ca91e63d78e9f316" alt="" width="563"><figcaption></figcaption></figure>

## IDOR :

* nous créons un fichier que nous **retourne l'identifiant** sous le numéro 1062 :

<figure><img src="/files/459b3b52b6377002b91d91abed0ca61246b4b59d" alt="" width="563"><figcaption></figcaption></figure>

<figure><img src="/files/820c3251394d42762a7f3c365dbf4d3c770cc6ac" alt="" width="563"><figcaption></figcaption></figure>

Si nous filtrons par un autre nombre, cela indique que le document **n'existe pas**:

<figure><img src="/files/98142494ebef51eaf4d415e169371479173a22b1" alt="" width="563"><figcaption></figcaption></figure>

### force brute :

* nous lançons une attaque de **force brute** pour filtrer le fichier qui existe :

```bash
wfuzz --hh=10703,1233 -c -t 200 -z range,1-1500 -d 'pdf_id=FUZZ' http://localhost:5000/download

```

<figure><img src="/files/a5f4416d657c0ac61245c89935c29d58b2243e8c" alt="" width="563"><figcaption></figcaption></figure>


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