where are the robots

1 minute to read

We are given a website like this:

where are the robots 1

The page talks about robots. There is a special file called robots.txt that prevents web crawlers and spiders to access some routes listed on the file. Let’s take a look:

where are the robots 2

Alright, there is a Disallow: /8028f.html, which does not mean that we cannot enter (it only tells automatic scanners not to enter). This is /8028f.html:

where are the robots 3

And there’s the flag:

picoCTF{ca1cu1at1ng_Mach1n3s_8028f}