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safe way to use rand
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crypto
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Dreamhack
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Advanced Calculator
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web
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Dreamhack
20์ฝ”์ธ
with my love
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reversing
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Dreamhack
20์ฝ”์ธ
cats-and-dogs
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pwnable
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Dreamhack
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๋žญํ‚น

199 ๋ช…์ด ์ฐธ์—ฌ ์ค‘์ž…๋‹ˆ๋‹ค.
Last updated: 2026.01.14. 04:05:01
์ˆœ์œ„ ์ ์ˆ˜ ์‚ฌ์šฉ์ž
1์œ„ 3748 pts
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hiikunZ
2์œ„ 2752 pts
wy
3์œ„ 1862 pts
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soon_haari
4์œ„ 1862 pts
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qpal
5์œ„ 1841 pts
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physicube
6์œ„ 1841 pts
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Rootsquare
7์œ„ 1841 pts
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B1ackCat
8์œ„ 1841 pts
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yuseong
9์œ„ 1777 pts
zetacode
10์œ„ 1777 pts
c0met
11์œ„ 1777 pts
4ncientH
12์œ„ 975 pts
rev4fun
13์œ„ 911 pts
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์ด๋ผ๋ˆ„
14์œ„ 911 pts
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leehojune
15์œ„ 911 pts
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j3tt

๊ฒฐ๊ณผ

์‚ฌ์šฉ์ž
LP
๋ณ€๋™๋œ ํ‹ฐ์–ด
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hiikunZ
2241
104
Diamond II
wy
2257
118
Diamond II
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soon_haari
1506
200
Gold III
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qpal
2130
77
Diamond III
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physicube
1978
188
Platinum II
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Rootsquare
2119
70
Diamond III
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B1ackCat
1997
93
Platinum II
avatar
yuseong
1979
89
Platinum II
zetacode
1945
114
Platinum II
c0met
1853
100
Platinum III
4ncientH
2064
60
Platinum I
rev4fun
1582
Gold III
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์ด๋ผ๋ˆ„
1818
94
Platinum III
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leehojune
2075
25
Platinum I
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j3tt
1569
Gold III
yjkwon0026
1810
84
Platinum III
wlswotmd
1523
174
Gold III
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์™”๋‹ค..
1844
71
Platinum III
PUPU
1403
335
Silver I
n0ha
1767
90
Gold I
Hail Mary
1564
159
Gold III
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๋ช…์šฑ
1790
90
Gold I
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๋ฌธ๋”ฉ
2065
-42
Platinum I
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swap
1629
81
Gold II
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x3ric
1802
70
Platinum III
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H3iND33R
1283
13
Silver III
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๋ฉ€๋ฃจ
1334
3
Silver II
hackbyr0k
1257
17
Silver III
wnstkd
1274
20
Silver III
bluebeetle
1243
28
Silver III
Season 7
Dreamhack CTF Season 7 Round #11 (๐ŸšฉDiv1)
์ผ์‹œ
2025.06.07. 09:00:00
~ 2025.06.07. 23:59:59
199
๋ช… ์ฐธ์—ฌํ•จ
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.
  4. ๋Œ€ํšŒ๊ฐ€ ์ง„ํ–‰๋˜๋Š” ๋™์•ˆ ๋ฌธ์ œ ํŒŒ์ผ์„ ๋‹ค๋ฅธ ์‚ฌ๋žŒ๊ณผ ๊ณต์œ ํ•˜๋ฉด ์•ˆ๋ฉ๋‹ˆ๋‹ค.
๋ณด์ƒ
  • ๋“œ๋ฆผํ•ต ์šฐ์‚ฐ
    • ์ƒ์œ„ 1๋ช…
    • ์ถ”์ฒจ 4๋ช… (์ตœ์†Œ ํ•œ ๋ฌธ์ œ ์ด์ƒ ํ•ด๊ฒฐํ•œ ์‚ฌ๋žŒ)
์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.