[ํด๋ผ์šฐ๋“œ ๋ฐ”์šฐ์ฒ˜] 80% ํ• ์ธ๋œ ๊ธˆ์•ก์œผ๋กœ ๋“œ๋ฆผํ•ต ์—”ํ„ฐํ”„๋ผ์ด์ฆˆ๋ฅผ ๋„์ž…ํ•ด ๋ณด์„ธ์š”. ์ž์„ธํžˆ ์•Œ์•„๋ณด๊ธฐ
  • ๋ฌธ์ œ
  • ํ’€์ด
  • ๋žญํ‚น
  • ๊ฒฐ๊ณผ
  • ๋ฌธ์˜
๋Œ€ํšŒ ๋ฌธ์ œ๋ฅผ ๋ณด๋ ค๋ฉด ๋กœ๊ทธ์ธ ํ•ด ์ฃผ์„ธ์š”!

ํ’€์ด

Dreamhack
free
Dreamhack
free
Dreamhack
free
Dreamhack
free

๋žญํ‚น

219๋ช…์ด ์ฐธ์—ฌํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.
์ˆœ์œ„
์‚ฌ์šฉ์ž
์ ์ˆ˜
๊ฐฑ์‹  ์‹œ๊ฐ„
ํ‘ผ ๋ฌธ์ œ
1์œ„ 3986 pts
10๊ฐœ์›” ์ „
2์œ„ 2986 pts
10๊ฐœ์›” ์ „
3์œ„ 1988 pts
10๊ฐœ์›” ์ „
4์œ„ 992 pts
10๊ฐœ์›” ์ „
5์œ„ 0 pts -
5์œ„ 0 pts -
5์œ„ 0 pts -
5์œ„ 0 pts -
5์œ„ 0 pts -
5์œ„ 0 pts -
5์œ„ 0 pts -
5์œ„ 0 pts -
5์œ„ 0 pts -
5์œ„ 0 pts -
5์œ„ 0 pts -

๊ฒฐ๊ณผ

Grandmaster
2806
65
3986 pts
Grandmaster
2792
23
2986 pts
Master
2632
23
1988 pts
Diamond II
2280
55
992 pts
Silver III
1258
28
0 pts
Silver I
1442
-37
0 pts
Silver I
1485
-42
0 pts
Silver I
1453
-25
0 pts
Silver I
1409
-2
0 pts
Silver III
1233
83
0 pts
Silver III
1236
29
0 pts
Silver I
1491
-27
0 pts
Silver III
1288
0 pts
Silver II
1302
0 pts
Silver III
1252
-64
0 pts
Silver I
1475
0 pts
Silver III
1291
0 pts
Silver III
1295
0 pts
Silver II
1305
38
0 pts
Silver III
1233
83
0 pts
Silver III
1233
83
0 pts
Gold III
1525
-54
0 pts
Gold II
1673
-67
0 pts
Silver II
1350
18
0 pts
Silver III
1219
43
0 pts
Silver III
1271
27
0 pts
Silver III
1299
0 pts
Silver I
1440
-21
0 pts
Silver II
1398
-3
0 pts
Silver II
1320
35
0 pts
Season 3
Dreamhack CTF Season 3 Round #5 (๐ŸšฉDiv1)
์ผ์‹œ
2023.06.11. 09:00:00
~ 2023.06.11. 23:59:59
219๋ช… ์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
  • CU ๋ชจ๋ฐ”์ผ๊ธˆ์•ก๊ถŒ 20,000์›
    • ์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.