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nc3ctf2018's Introduction

NC3 Jule CTF 2018

NC3 afholdte en CTF i December 2018 for at sætte fokus på IT-sikkerhed. En CTF kan kort beskrives som en hackerkonkurrence, hvor det handler om at bryde forskellige sikkerhedsforanstaltninger. Målet med hver opgave er at finde et "flag", dvs. en tekst, som opgaven prøvede at holde hemmelig.

Flag format: NC3{flag}

URL: http://nc3s4mmxv5lhq7xs.onion/

Web-kode baseret på: https://ctfd.io/

     

Resultat

       

Writeups

Konceptet omkring writeups er enkelt: En gennemgang af hvordan en opgave kan løses.

Især i infosec community'et er der en positiv tendens til at skrive writeups efter en endt CTF. Dette giver jo andre en mulighed for at se hvordan en opgave kunne løses. Hvis man f.eks. selv ikke kunne få hul på en given opgave under konkurrencen, er det derfor yderst interessant at se efterfølgende hvad man kunne have gjort. Ligeledes kunne det være at man allerede havde løst en given opgave, men gerne ville have inspiration til evt. andre løsninger.
Sådanne writeups var der heldigvis flere deltagere der lavede efter jule CTF'en. Herunder følger de officielle writeups, samt dem som vi har fundet indtil videre på nettet.

Opgaver / Challenges

Deltagerene fik opgaver i forskellige kategorier. Efter konkurrencen var alle opgaver løst:

       

Officielle Writeups

Reversing - Indledning

Reversing - Små Skridt

Reversing - nisse.elf

Reversing - Fi1eCrypter

Reversing - Kan du dekode?

       

Community Writeups - Flere forskellige

https://github.com/NicolaiSoeborg/ctf-writeups/tree/master/2018/NC3%20Jule%20CTF%202018

https://github.com/kkthxbye-code/NC3-CTF-2018-Writeup

https://github.com/svindlerdk/ctf-writeups/tree/master/nc3ctf2018

Community Writeups - NC3.jpg

https://www.youtube.com/watch?v=CW0xcyt26kk

Community Writeups - Boot2Root

https://www.youtube.com/watch?v=WpDN_Z3MrZ8

Community Writeups - breach_nem

https://www.youtube.com/watch?v=jYm5MyVgHG4

nc3ctf2018's People

Contributors

nc3medarbejder avatar svindlerdk avatar

Stargazers

Stig RT Madsen avatar Crysal avatar Jens Stigaard avatar Josephine avatar  avatar András Ács avatar Rasmus Lauridsen avatar  avatar  avatar Martin Bolbroe avatar Kresten Laust avatar  avatar

Watchers

James Cloos avatar Jens Christian Rasch avatar  avatar Kasper Gadegaard le Fevre avatar  avatar

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