hxp 38C3 CTF

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mbins

by iead
rev

Difficulty estimate: medium - medium

Points: round(1000 ยท min(1, 10 / (9 + [8 solves]))) = 588 points

Description:

ไปฎๆƒณๆฉŸๆขฐๅฎถๆ—ใซๅ„ชใ—ใใ—ใฆใใ ใ•ใ„ใ€‚ Have fun with the virtual machine family.

ใƒ—ใƒญใ‚ฐใƒฉใƒ ใŒๅ…ฅๅŠ›ใ‚’ๅ—ใ‘ๅ…ฅใ‚Œใ‚‹ใฎๅ€ใฏ็ต‚ไบ†ใ‚ณใƒผใƒ‰ใŒใ‚ผใƒญใงใ™ใ€‚ The exit code will be 0 when the binary accepts the input.


Download:

mbins-ff70e6b874978884.tar.xz (884.2 KiB)

Solution:


CTFtime Logo CTFtime: Task & Writeups

Solved by:

# Team Time
mbins released 2024-12-27 20:00:00 +0000 UTC
๐Ÿฅ‡ SPRUSH 2024-12-28 08:28:02 +0000 UTC
๐Ÿฅˆ Friendly Maltese Citizens 2024-12-28 09:26:27 +0000 UTC
๐Ÿฅ‰ ierae 2024-12-28 15:02:14 +0000 UTC
4 Never Stop Exploiting 2024-12-28 15:47:16 +0000 UTC
5 kalmarunionen 2024-12-28 17:01:15 +0000 UTC
6 MMM 2024-12-29 08:45:48 +0000 UTC
7 The Flat Network Society 2024-12-29 15:11:31 +0000 UTC
8 FluxFingers 2024-12-29 16:04:54 +0000 UTC