hxp CTF 2021 hxp

2021

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zehn

by kirschju
pwn

Difficulty estimate: medium - medium

Points: round(1000 · min(1, 10 / (9 + [22 solves]))) = 323 points

Description:

After iteration number 10, Topi gave up earlier this year. Can you prove his case?


Download:

zehn-bfd5ac789384cc69.tar.xz (758.0 KiB)

Connection (mirrors):

  • nc 65.108.176.61 55557

Solution:


CTFtime Logo CTFtime: Task & Writeups

Solved by:

# Team Time
zehn released 2021-12-17 15:00:00 +0000 UTC
🥇 Balsn 2021-12-17 18:07:05 +0000 UTC
🥈 copy 2021-12-17 19:01:54 +0000 UTC
🥉 Dragon Sector 2021-12-17 19:27:49 +0000 UTC
4 EB FE 2021-12-17 19:57:12 +0000 UTC
5 pasten 2021-12-17 22:55:08 +0000 UTC
6 WreckTheLine 2021-12-17 23:13:53 +0000 UTC
7 r3billions 2021-12-18 01:28:40 +0000 UTC
8 Kalmarunionen 2021-12-18 02:12:08 +0000 UTC
9 Nu1L 2021-12-18 06:59:43 +0000 UTC
10 justCatTheFish 2021-12-18 07:57:33 +0000 UTC
11 Katzebin 2021-12-18 08:11:29 +0000 UTC
12 zer0pts 2021-12-18 09:20:42 +0000 UTC
13 Super Guesser 2021-12-18 09:49:22 +0000 UTC
14 pkucc 2021-12-18 16:05:13 +0000 UTC
15 LittleIndian 2021-12-18 17:54:26 +0000 UTC
16 Water Paddler 2021-12-18 18:22:19 +0000 UTC
17 u0K++ 2021-12-18 19:33:28 +0000 UTC
18 DiceGang 2021-12-19 00:09:53 +0000 UTC
19 More Smoked Leet Chicken 2021-12-19 06:00:57 +0000 UTC
20 Never Stop Exploiting 2021-12-19 06:42:36 +0000 UTC
21 Phat Cow High 2021-12-19 07:35:35 +0000 UTC
22 r3kapig 2021-12-19 08:01:33 +0000 UTC