DefendTheWeb Playground Challenge Crypt 1

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 1 / 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:

tpyrcoow :ssap siht retne level siht etelpmoc oT .rewop niarb fo tol a yolpme ot deen lliw uoy ,cigol dna noitpyrced tuoba lla era slevel esehT .sihtkcah no slevel tpyrc eht ot emoclew ,olleH

So it is simple, just decrypt the text and get the password. This one is simple as the text is not encryted at all, it is just backwards. Let’s do a simple trick in Linux shell to reverse the string:

$ echo "tpyrcoow :ssap siht retne level siht etelpmoc oT .rewop niarb fo tol a yolpme ot deen lliw uoy ,cigol dna noitpyrced tuoba lla era slevel esehT .sihtkcah no slevel tpyrc eht ot emoclew ,olleH" | rev
Hello, welcome to the crypt levels on hackthis. These levels are all about decryption and logic, you will need to employ a lot of brain power. To complete this level enter this pass: woocrypt

And ther we have it. I hope you liked this silly one, see you on the next challenge!

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