Reversing on Damjan Cvetko

Xmas CTF 2020 - Day 23

Wed, 23 Dec 2020 00:00:00 +0000

Challenge: Santa forgot his password for the application he likes to use, but he found this old binary that contains the password. Can you help him retrieve it?

KeygenToTheKindom

Xmas CTF 2020 - Day 19

Sat, 19 Dec 2020 00:00:00 +0000

Challenge: Santa forgot his password for ReindeerTracker5000. Can you find Santa’s password?

ReindeerTracker5000.zip

Xmas CTF 2020 - Day 18

Fri, 18 Dec 2020 00:00:00 +0000

Challenge: Isn’t 2fa fun? Especially when you forget to backup you code and can’t login anywhere anymore. Well, not even Santa is immune to mistakes like this. Fortunately his app creates a recovery token. The developers hoped that Santa would never need it, so they kinda slacked off when implementing the app. It’s up to us to find Santa’s recovery token.

santas-authenticator.apk

Xmas CTF 2020 - Day 17

Thu, 17 Dec 2020 00:00:00 +0000

Challenge: Santa made available a service that accepts only the best of jokes. Try it out, binary is available and service is listening at elfs.owasp.si:40003.

baby_bof

Xmas CTF 2020 - Day 10

Thu, 10 Dec 2020 00:00:00 +0000

Challenge: Somebody sent Santa the following program and this key: thisIsMyChristmasWish. Can you help Santa find the right way to use this key and find out what the wish is?

present.js

Xmas CTF 2020 - Day 9

Wed, 09 Dec 2020 00:00:00 +0000

Challenge: With all the work that has to be done before Christmas, Santa forgot the password to his phone. If he can’t make calls, he won’t be able to order all the gifts. Help him retrieve his password. It should be stored in this app.

icevalult.apk

Xmas CTF 2020 - Day 5

Sat, 05 Dec 2020 00:00:00 +0000

Challenge: Santa found this program when he inspected the computer of an elf, who tried to steal all the presents from Santa’s sleigh. Can you find out what it does?

Lorem_Ipsum.pdf