Revver, Midnight Sun CTF writeup Solved by: zzz, Zopazz Writeup by: Zopazz Description: Automated reversing is a solved problem, right. Writeup General challenge information In this challenge we were provided with a netcat session, which would respond with one of 20 random dynamically generated shellcodes encoded as …
Read Morekgbfskfsb, MidnightSun CTF writeup Writeup by: Nigma, nrabulinski Solved by: sebastianpc, Eldar Zeynalli (Hako), nrabulinski, Nigma Description: DeNiS Sergeev wants a secret mission payload… Attachments: kgbfskfsb.tar.gz The challenge description pretty clearly hints towards DNS stuff and sure enough, after …
Read MoreWriteup by: Oliver Lyak (ly4k) Solved by: Zopazz, Oliver Lyak (ly4k) QLaaS QLaaS (Qiling as a Service) was a Clone-and-Pwn challenge with difficulty Schrödinger (whatever that means). The challenge was solved by 23 out of 947 teams. We are provided with the following attachment: …
Read MoreReal World CTF 4th: Secured Java
Jan 23, 2022Writeup by: Nicolai Søborg Solved by: Nicolai Søborg, Rasmus Have This year we managed to land a 13 place, again! (which is really a shame as top 12 gets swag …) Secured Java The challenge is a single python file that allows you to “run untrusted Java in a safe way”. The code boils down to: you …
Read MoreWriteup by: Zanderdk | linkedin Solved by: ZZZ | linkedin, N00byedge | linkedin Indie VMM - HXP 2021 In this challenge we are given a root access to a linux machine running in the linux tools hypervisor and the goal is to escape out of the hypervisor to access the flag file on the host system. During this challenge we …
Read MoreWriteup by: andyandpandy Solved by: andyandpandy, Hako Writeup The challenge has a race condition vulnerability, where you can delete your user and rapidly after send another request for the flag, which is successful when timed correctly. Description Web challenge Challenge author: pspaul/SonarSource To keep track of …
Read MorePwn2win - Hackus
Jun 18, 2021Writeup by: andyandpandy Solved by: andyandpandy, eskildsen, 2by4 Writeup This is most likely an unintended solution. TL;DR: Create a note with two iframes. First iframe gets /s/secret-note, second gets from evil.com, which returns a html page where another iframe is loaded based on an 0-day …
Read MoreWriteup author: Bawstaws The Lost Bottle is the most awesome pirate game. It is about a young pirate, that lost her favorite bottle of old rum. She is now doomed to drink ordinary rum until she finds her bottle. Flags: 2531.00 Tags: rev, misc, game Introduction After discovering that this is a game challenge I quickly …
Read MoreSkrevet af: Oliver Nordestgaard og Kim Schulz Er dit CPR nummer på internettet? I forbindelse med at der i disse dage skrives mange artikler om den nye sundhedskort app, skal der bruges billeder til artiklerne. Næsten alle journalister har et sundhedskort i lommen, og derfor kan det virke meget nærliggende lige at hive …
Read MoreDe Danske Cybermesterskaber: Kuuuurveen
May 9, 2021 CryptoWriteup by: ChrRaz Kuuuurveen We are given the following challenge description. A client and a server have been communicating the flag over an encrypted channel. Der er en Kuuuuuuuuuuuuuuurveeeeeee, er den ikke smuk? En client og en server kommunikere over en krypteret kommunikationskanal. Se om du ved hjælp af source …
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