# InterKosenCTF2019 writeups

###### tags: `InterKosenCTF2019`

## Reversing

- [easy: basic crackme](https://hackmd.io/@ptr-yudai/S1T0JszhV)
- [easy: passcode](https://hackmd.io/@ptr-yudai/By5IOhGXS)
- [easy: magic function](https://hackmd.io/@theoldmoon0602/B15VFsylB)
- [hard: favorites](https://hackmd.io/@ptr-yudai/SksQVzVjE)

## Forensics

- [easy: Hugtto!](https://hackmd.io/@ptr-yudai/SyU0sifXH)
- [easy: lost world](https://hackmd.io/@theoldmoon0602/S1_nTrlXS)
- [medium: Temple of Time](https://hackmd.io/@theoldmoon0602/BkvYaFBMS)
- [medium: saferm](https://hackmd.io/@theoldmoon0602/By3_PjV-B)

## Crypto
- [easy: Kurukuru Shuffle](https://hackmd.io/@ptr-yudai/Syj0Fr91r)
- medium: Flag Ticket
- [1:想定解](https://hackmd.io/@theoldmoon0602/BytKaXx4r)
- [2:別解](https://hackmd.io/@ptr-yudai/rJolHHpMr)
- [hard: pascal homomorphicity](https://hackmd.io/@ptr-yudai/HyxEIwTGr)
- [hard: E_S_P](https://hackmd.io/@ptr-yudai/rJYbQ1xhV)

## Web
- [warmup: uploader](https://hackmd.io/@theoldmoon0602/BJXvbHxNS)
- [easy: Image Extractor](https://hackmd.io/@ptr-yudai/ByMCoklMH)
- [medium: Neko Loader](https://hackmd.io/@theoldmoon0602/SyADAll7r)
- [hard: E-Sequel-Injection](https://hackmd.io/@ptr-yudai/SyqVhqPaN)
- [hard: Image Compressor](https://hackmd.io/@theoldmoon0602/HJiTV4eGS)

## Pwn
- [easy: fastbin tutorial](https://hackmd.io/@theoldmoon0602/Hkebii9iN)
- [easy: shopkeeper](https://hackmd.io/@theoldmoon0602/rk7_mUfn4)
- [medium: bullsh](https://hackmd.io/@theoldmoon0602/H197a2fnN)
- [hard: stegorop](https://hackmd.io/@theoldmoon0602/HJFgj2BjE)
- [lunatic: kitten](https://hackmd.io/@theoldmoon0602/rJf0IS9mB)