Kalmarunionen
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ASIS CTF - xtr BambooFox CTF: The Vault BSidesSF 2021: Log 'em All De Danske Cybermesterskaber: 80s Commitments De Danske Cybermesterskaber: Kuuuurveen FaustCTF 2021 - Attack & Defense - thelostbottle Hack.lu CTF - Nodenb LKVM Escape MidnightSun Quals: kgbfskfsb MidnightSun Quals: Revver Pwn2win - Hackus Qiling Sandbox Escape Real World CTF 4th: Secured Java SekaiCTF 2023 - Leakless Note Sudo Exploit Writeup Union CTF 2021: Cr0wnAir
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  • DEF CON CTF 2023 Qualifiers - IFUCKUP

    Aug 5, 2023 rev crypto pwn

    Summary This is a detailed writeup for the “IFUCKUP” challenge at the DEF CON CTF 2023 Qualifiers that I solved together with several team members from Norsecode (a collaboration of several CTF teams, including Kalmarunionen). The challenge binary that had to be exploited permits a buffer overflow on the …

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  • MidnightSun Quals: Revver

    Apr 4, 2022 rev z3

    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 …

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Recent Posts

  • Welcome to Kalmarunionen
  • SekaiCTF 2023 - Leakless Note
  • DEF CON CTF 2023 Qualifiers - IFUCKUP
  • zer0pts CTF 2023 - Unlimited Braid Works
  • Codegate CTF 2023 Preliminary - anti Kerckhoffs
  • m0leCon Teaser 2023 - babyPQ
  • m0leCon Teaser 2023 - Collisions
  • ångstromCTF 2023 - snap circuits

Categories

WRITEUPS 17 DDC-2021 2 MIDNIGHTSUN 2 BSIDESSF-2021-CTF 1 FAUST-CTF-2021 1 HACK.LU-CTF 1 HXP 1 REAL-CVE 1 REAL-WORLD-CTF 1 SEKAICTF-2023 1

Tags

CRYPTO 8 WEB 5 RACE-CONDITIONS 3 REV 2 XSS 2 ADVANCED-WEB 1 ATTACK-DEFENSE 1 C++ 1 CLONE-AND-PWN 1 GAME 1 MISC 1 PWN 1 PYTHON 1 QILING 1 RCE 1 REAL-WORLD 1 SANDBOX-ESCAPE 1 SUDO 1 SUNDHEDSKORT 1 USE-AFTER-FREE 1 XS-SEARCH 1 Z3 1

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