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260๋ช…์ด ์ฐธ์—ฌํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.
Last updated: 2024.09.19. 09:58:59
์ˆœ์œ„ ์ ์ˆ˜ ์‚ฌ์šฉ์ž
1์œ„ 1020 pts
avatar
p0her
Open Beta Tester
2์œ„ 1020 pts
avatar
yadohyun
Dreamhack Beta CTF ์ฐธ์—ฌ
3์œ„ 1020 pts
wkwmd
๋Œ€ํ‘œ ์—…์  ์—†์Œ
4์œ„ 1020 pts
kyuheon
๋Œ€ํ‘œ ์—…์  ์—†์Œ
5์œ„ 1020 pts
avatar
๐Ÿšซ
๋Œ€ํ‘œ ์—…์  ์—†์Œ
6์œ„ 1020 pts
๋ฆฌ์‹ ๋ญํ•ด๊ฐฑ์˜ค๋ผ๊ณ 
๋Œ€ํ‘œ ์—…์  ์—†์Œ
7์œ„ 1020 pts
avatar
cidy
์›Œ๊ฒŒ์ž„ ๊ณ ์ธ๋ฌผ
8์œ„ 1020 pts
avatar
DamBi
๋Œ€ํ‘œ ์—…์  ์—†์Œ
9์œ„ 1020 pts
avatar
eunjo
Open Beta Tester
10์œ„ 1020 pts
avatar
j00n
๋Œ€ํ‘œ ์—…์  ์—†์Œ
11์œ„ 1020 pts
avatar
R3dzone
๊ณต๋ถ€๋ฒŒ๋ ˆ
12์œ„ 1020 pts
avatar
yoobi
์›Œ๊ฒŒ์ž„ ๊ณ ์ธ๋ฌผ
13์œ„ 1020 pts
avatar
DGEVY
๋Œ€ํ‘œ ์—…์  ์—†์Œ
14์œ„ 1020 pts
d05004
๊ฐ•์˜ ์ˆ˜๊ฐ•: 10
15์œ„ 1020 pts
avatar
YaPoo
๊ณต๋ถ€๋ฒŒ๋ ˆ

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yadohyun
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Gold I
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Platinum III
kyuheon
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Platinum III
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๐Ÿšซ
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Gold I
๋ฆฌ์‹ ๋ญํ•ด๊ฐฑ์˜ค๋ผ๊ณ 
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Gold II
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cidy
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Silver II
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eunjo
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Gold I
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j00n
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Gold II
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Gold III
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DGEVY
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Gold II
d05004
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Silver I
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YaPoo
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Gold I
5555555
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Gold III
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sinsa
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Gold III
skysquirrel
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Gold II
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๋ฌธ๋”ฉ
1466
Silver I
๋ฏธ๋ฃจ๋‚˜๋ฌด
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Gold III
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๊ตฐ์ธ๊น€๋„ํ˜„
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is07king
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Sapple
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Season 4
Dreamhack CTF Season 4 Round #4 (๐ŸŒฑDiv2)
์ผ์‹œ
2023.08.26. 09:00:00
~ 2023.08.26. 23:59:59
270๋ช… ์ฐธ์—ฌ
CTF ๊ฐœ์ตœ
Dreamhack
์ง„ํ–‰์‹œ๊ฐ„
15์‹œ๊ฐ„
ํŒ€ ๊ทœ๋ชจ
๊ฐœ์ธ
๊ฐœ์š”

Dreamhack CTF๋Š” ์ •๊ธฐ์ ์œผ๋กœ ๊ฐœ์ตœ๋˜๋Š” ๋Œ€ํšŒ์ž…๋‹ˆ๋‹ค.

๋ฌธ์˜

๊ทœ์น™
  1. CTF ์ฐธ๊ฐ€์ž ๊ฐ„์˜ ์ •๋‹ต ๊ณต์œ  ๋ฐ ํ’€์ด ๊ณผ์ • ๊ณต์œ ๋Š” ์—„๊ฒฉํžˆ ๊ธˆ์ง€๋˜์–ด ์žˆ์œผ๋ฉฐ, ์‹ค๊ฒฉ์˜ ๋Œ€์ƒ์ด ๋  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
  2. CTF ์ฐธ์—ฌ์ž๋Š” ๋ฐ˜๋“œ์‹œ ๊ณต๊ฒฉ ๋Œ€์ƒ์œผ๋กœ ์ •ํ•ด์ง„ ์„œ๋ฒ„๋งŒ์„ ์ ‘์†ํ•˜๊ณ  ๊ณต๊ฒฉํ•ด์•ผ ํ•ฉ๋‹ˆ๋‹ค.
  3. Dreamhack์„ ํฌํ•จํ•œ CTF ์„œ๋ฒ„ ์šด์˜์— ์˜ํ–ฅ์„ ๋ฏธ์น˜๋Š” ํ–‰์œ„ ํ˜น์€ ์›ํ™œํ•œ ์ง„ํ–‰์— ๋ฐฉํ•ด๊ฐ€ ๋  ์ˆ˜ ์žˆ๋Š” ํ–‰๋™ ๋ฐ ์‹œ๋„ ๋˜ํ•œ ์‹ค๊ฒฉ์˜ ๋Œ€์ƒ์ด ๋  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
๋ณด์ƒ
  • ๋“œ๋ฆผํ•ต ๊ตฟ์ฆˆ(์žฅํŒจ๋“œ)
    • ์ƒ์œ„ 1๋ช…
    • ์ถ”์ฒจ 4๋ช… (์ตœ์†Œ ํ•œ ๋ฌธ์ œ ์ด์ƒ ํ•ด๊ฒฐํ•œ ์‚ฌ๋žŒ)

์ƒํ’ˆ ์ถ”์ฒจ์€ ๋“œ๋ฆผํ•ต ๊ณต์‹ ๋””์Šค์ฝ”๋“œ ์„œ๋ฒ„ ์˜ #dh-ctf-season4 ์ฑ„๋„์—์„œ ์ง„ํ–‰ํ•ฉ๋‹ˆ๋‹ค.

โ€ป ๋“œ๋ฆผํ•ต ๋””์Šค์ฝ”๋“œ์—์„œ ์ƒํ’ˆ ์•ˆ๋‚ด๊ฐ€ ์ด๋ฃจ์–ด์ง‘๋‹ˆ๋‹ค. ์•ˆ๋‚ด๋ฅผ ํ™•์ธํ•˜์ง€ ๋ชปํ•˜์—ฌ ์ƒํ’ˆ์„ ๋ฐ›์ง€ ๋ชปํ•˜์˜€์„ ๊ฒฝ์šฐ, ์žฌ๋ฐœ์†กํ•ด ๋“œ๋ฆฌ์ง€ ์•Š์Šต๋‹ˆ๋‹ค.

โ€ป ๋ณด์ƒ์€ ์ƒํ™ฉ์— ๋”ฐ๋ผ ๋น„์Šทํ•œ ๊ธˆ์•ก์˜ ๋‹ค๋ฅธ ์ƒํ’ˆ์œผ๋กœ ๋ฐ”๋€” ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

์ฑ„์ 

๊ฐ ๋ฌธ์ œ์˜ ์ ์ˆ˜๋Š” ํ’€์ด์ž ์ˆ˜์— ๋”ฐ๋ผ ์กฐ์ •๋ฉ๋‹ˆ๋‹ค.

ํ”Œ๋ž˜๊ทธ ํ˜•์‹

ํ”Œ๋ž˜๊ทธ์˜ ํ˜•์‹์€ DH{...}์ž…๋‹ˆ๋‹ค.

ํ”Œ๋ž˜๊ทธ ์ œ์ถœ ์ œํ•œ
๋ฌธ์ œ๋‹น 30์ดˆ๋งˆ๋‹ค ํ•œ ๋ฒˆ์”ฉ Flag๋ฅผ ์ œ์ถœ ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.