Author: Marin Radu
Inspect requests made by the web application
- Understand HTTP requests
- Source code
You need to act as a proxy and inspect the data sent from the index page.
You can either use BurpSuite
or just Developer Tools
.
If you use Developer Tools
, head to the Network
tab,
select the generate_flag.php
file, and view the Response
.
There, you'll see the actual flag that is sent every minute,
changing its contents every 5 minutes.
My script uses the JavaScript Fetch
API to retrieve the result
you get when you run the generate_flag.php
script.
I also created an animation that throws each letter of the flag
in random locations on the screen, one after another.
Flag:
CSCTF{hash-that-changes-every-5-minutes}