Good Old Days - AUCTF 2020

Fri, 03 April 2020, 13:00 UTC — Mon, 06 April 2020, 04:00 UTC

Summary: A simple OSINT challenge requiring knowledge of where webpages are archived.

Starting off we get this simple description to go off. Judging from this it's sensible to assume we need to look at archived pages of this site.



If we search the site up on the wayback machine we find that there are indeed 4 captures listed for the sites homepage.



Looking at the earliest entry of the homepage there doesn't seem to be anything of interest.



However if we go over to the 'Users' page we can see that this page has been archived 3 times.



As we can see they are all archived on the same date, and if we go to the second entry...



We find our flag at the bottom of the page!