Since "pro fix" is not a standard challenge title on Webhacking.kr, I have interpreted this as a request for a detailed guide on how to approach and fix (solve) challenges on the site, or perhaps you are referring to a challenge involving "proxy" or "proc" (process) elements, which are common in CTFs.
You open the link. A barebones HTML page stares back:
Enter payment ID: [input box] [Fix It] button. webhackingkr pro fix
Cracking the Code: A Deep Dive into Webhacking.kr Fix Challenges Introduction Webhacking.kr Since "pro fix" is not a standard challenge
Wargame Solutions: You can find detailed walkthroughs and scripts on developer repositories like GitHub. Cracking the Code: A Deep Dive into Webhacking
When you enter the challenge, you are presented with a logic puzzle hidden within obfuscated or complex JavaScript. The goal is to "fix" the input or find the correct value that satisfies a specific script condition to receive the flag. Steps to "Fix" and Solve Analyze the Obfuscated Code
If you want, I can:
<?php
$input = $_GET['val'];
$target = "admin";