> 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/web/ssrf/blind-ssrf-with-out-of-band-detection.md).

# Blindes SSRF mit Out-of-Band-Erkennung

### Blindes SSRF mit Out-of-band-Erkennung

Dieses Labor verwendet ein Analysemodul, das eine HTTP-Anfrage an die URL in der **Referer** Header sendet, wenn eine Produktseite geladen wird. / Um das Labor zu lösen, müssen Sie dieses Verhalten nutzen, um eine Anfrage an den öffentlichen Server auszulösen **Burp Collaborator**.

<figure><img src="/files/84ab42758581ac8ae1ee5c9cd007dffce26543bf" alt=""><figcaption></figcaption></figure>

Wir stellen fest, dass die Seite den Wert des Referer-Headers abruft. / Das Ziel besteht daher darin, diese Anfrage an unseren Collaborator-Body umzuleiten.

Senden Sie einfach eine Anfrage mit einem bösartigen Referer, zum Beispiel:

```
Referer: https://ld2xyh6ornbpdovp5ww0sartzk5bt1hq.oastify.com
```

Der Server führt dann eine ausgehende Anfrage aus, die in Burp Collaborator erscheint und den blinden SSRF-Betrieb bestätigt.

<figure><img src="/files/b7950d90667c1307e729d0099b23433719ae0d29" alt=""><figcaption></figcaption></figure>


---

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