HTB: PDFy Machine Writeup (Updated) If you are prepping for the OSCP or just sharpening your web exploitation skills, PDFy on Hack The Box is a classic "easy" rated machine that provides a textbook example of Server-Side Request Forgery (SSRF).
Upload payload.pdf → Observe ICMP echo requests on listener. pdfy htb writeup upd
Now read /tmp/root.txt – that’s your RPD. HTB: PDFy Machine Writeup (Updated) If you are
Traditional injections (like HTML tags) might not directly validate, but the server must query the provided URL to render it. Foothold: Local File Inclusion (LFI) via SSRF Example Scenario: There is an endpoint that accepts
The Theory: If the application can fetch external web pages, can it fetch internal resources? Inputting file:///etc/passwd or http://localhost directly often results in a "URL not allowed" or similar error message, indicating a basic blacklist or security filter is in place. 2. Identifying the Technology
Information Disclosure: In PDFy, the goal is often to read local files or reach internal services.