Damjan Cvetko

Damjan Cvetko

Developer, System Architect, Hacker.

Xmas CTF 2019 - Day 19

2 minutes read

<p>Challenge: In the last days of preparation to test his flying capabilities, Santa’s elves flew 47 times around the earth and then another 13 times. Then Santa’s elves inserted all good children addresses and suddenly the navigation system crashed with this error message: r~yy!cbb(twz’d"++x(y!a<em>qqt&%u{b</em>)tw%)sv$+$tyssvrr$|zalll Is it some kind of buffer overflow? Do you have any idea how to solve this issue ?</p>

Xmas CTF 2019 - Day 20

1 minute read

<p>Challenge: The elf developers looked at their mistakes and have decided to make a new login page for Santa. They’ve used some fancy new technologies, maybe that will save them. <a href="https://dancer.bsidesljubljana.si/">https://dancer.bsidesljubljana.si/</a></p>

Xmas CTF 2019 - Day 18

1 minute read

<p>Challenge: Someone sent you a message, that can only be read by finding out the password. There was also a hint alongside the message: What is Christmas about? Note: flag format is as always xmas{flag}</p>

Xmas CTF 2019 - Day 16

1 minute read

<p>Challenge: Santa updated his Christmas carol playlist, but he noticed that the elves are trying to trick him again. He is listening to this song over and over again, but cannot decode it. Please help Santa to solve this audio mystery.</p>

Xmas CTF 2019 - Day 14

2 minutes read

<p>Challenge: Santa has got an essential song locked away in the attached file, but now he forgot the key. He was interested in the basic building blocks of modern cryptography; also he was reading a lot about politics. Can you help him figure out the key so everyone could listen to this song on repeat?</p>

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