Write-up – Web 50 – Robots.txt is not the only one

Points: 50
Author: Le_suisse
Description: Get information

First web challenge, when launching website this page appears :

Firstly, we tried to display robot.txt file located in the root path, but it was a trap :


Back to main page, it seems that both numbers looks like RFC number..Bingo !

RFC5785 defines Well-Known URL(“/.well-known/”)
 refers to WebFinger protocol

Let’s combine both, and navigate to http://localhost:2050/.well-known/webfinger/

Browser will download a small file, open it :

Some endpoints can be discovered through Well-Known URIs.


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