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๋žญํ‚น

313๋ช…์ด ์ฐธ์—ฌํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.
Last updated: 2024.07.27. 17:18:03
์ˆœ์œ„ ์ ์ˆ˜ ์‚ฌ์šฉ์ž
1์œ„ 3960 pts
G0RiyA
2024 Invitational Contenders
2์œ„ 2962 pts
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Reinose
์›Œ๊ฒŒ์ž„: 20
3์œ„ 1980 pts
imssm99
์›Œ๊ฒŒ์ž„ ๊ณ ์ธ๋ฌผ
4์œ„ 1970 pts
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snwo
2024 Invitational Contenders
5์œ„ 998 pts
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soon_haari
๋Œ€ํ‘œ ์—…์  ์—†์Œ
6์œ„ 992 pts
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physicube
2024 Invitational Winners
7์œ„ 988 pts
ash3r
์›Œ๊ฒŒ์ž„ ๊ณ ์ธ๋ฌผ
8์œ„ 982 pts
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Sechack
2024 Invitational Contenders
9์œ„ 982 pts
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deayzl
2024 Invitational Contenders
10์œ„ 982 pts
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Brwook
2024 Invitational Contenders
11์œ„ 0 pts
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D0Dos
๋Œ€ํ‘œ ์—…์  ์—†์Œ
11์œ„ 0 pts
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quder0210
๋Œ€ํ‘œ ์—…์  ์—†์Œ
11์œ„ 0 pts
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๋ณด๊ฐ๋ˆ„๋‚˜
์›Œ๊ฒŒ์ž„: 50
11์œ„ 0 pts
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d3lphia
๋Œ€ํ‘œ ์—…์  ์—†์Œ
11์œ„ 0 pts
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LP
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G0RiyA
2769
77
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Reinose
2741
40
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imssm99
2609
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Master
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snwo
2439
72
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soon_haari
1500
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physicube
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ash3r
2044
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Sechack
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deayzl
2225
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1868
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1342
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๋Œ€์‘
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๋•…์„
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kioreo
1376
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dpp
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beta
1304
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Season 3
Dreamhack CTF Season 3 Round #3 (๐ŸšฉDiv1)
์ผ์‹œ
2023.05.13. 09:00:00
~ 2023.05.13. 23:59:59
311๋ช… ์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
  • ์„ค๋น™ ๋””์ง€ํ„ธ ์ƒํ’ˆ๊ถŒ 2๋งŒ์›๊ถŒ
    • ์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-season3 ์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„์ 

ํ•ด๋‹น CTF๋Š” ๋ฌธ์ œ ํ’€์ด์ž ์ˆ˜์— ๋”ฐ๋ผ ์ ์ˆ˜๊ฐ€ ๋ณ€ํ•˜๋Š” ์‹œ์Šคํ…œ์„ ์ฑ„์šฉํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.

ํ”Œ๋ž˜๊ทธ ํ˜•์‹

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

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