DefendTheWeb.net, previously called HackThis.co.uk, is a very famous and well-known interactive security platform where you can learn and challenge your skills.. It contains challenges from several different cybersecurity fields.
I’ve decided to have a bit of fun and try to solve every single challenge presented, from the easiest to the hardest. (although easy and hard will be different depending on your skillset and field of expertise).
As I do with any challenge website, I WILL NEVER post the flag in cleartext, as it kills the fun and thrill of finding it, however I will post my way (or ways) of getting there. This is done in respect of the website’s security and non-disclosure policy, even when it doesn’t have one ;).
Challenge Crypt 2 / Crypt
This challenge is rated as Crypt, so it may or may not be a little tricky to solve. This time the author only gives us a description followed by a password field:
Aipgsqi fego, xlmw pizip mw rsx ew iewc ew xli pewx fyx wxmpp rsx xss gleppirkmrk. Ws ks elieh erh irxiv xlmw teww: wlmjxxlexpixxiv
Again, as in Crypt 1, we have to decipher this phrase. This one is obviously not backwards as the previous one, but it does look like a normal substitution cipher.
And it is indeed a simple substitution cipher, passing it through https://www.guballa.de/substitution-solverhttps://www.guballa.de/substitution-solver and setting the language to English we can easily break this one and get the password.
There we have it. See you on the next challenge.