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[Dreamhack] Misc1

[Dreamhack] CTF Season5 Round #2 - addition-quiz ๐Ÿ›Ž๏ธ Access ๋žœ๋คํ•œ 2๊ฐœ์˜ ์ˆซ์ž๋ฅผ ๋”ํ•œ ๊ฒฐ๊ณผ๊ฐ€ ์ž…๋ ฅ ๊ฐ’๊ณผ ์ผ์น˜ํ•˜๋Š”์ง€ ํ™•์ธํ•˜๋Š” ๊ณผ์ •์„ 50๋ฒˆ ๋ฐ˜๋ณตํ•˜๋Š” ํ”„๋กœ๊ทธ๋žจ์ž…๋‹ˆ๋‹ค. ๋ชจ๋‘ ์ผ์น˜ํ•˜๋ฉด flag ํŒŒ์ผ์— ์žˆ๋Š” ํ”Œ๋ž˜๊ทธ๋ฅผ ์ถœ๋ ฅํ•ฉ๋‹ˆ๋‹ค. ์•Œ๋งž์€ ๊ฐ’์„ ์ž…๋ ฅํ•˜์—ฌ ํ”Œ๋ž˜๊ทธ๋ฅผ ํš๋“ํ•˜์„ธ์š”. ํ”Œ๋ž˜๊ทธ ํ˜•์‹์€ DH{…} ์ž…๋‹ˆ๋‹ค. Hint) pwntools ๐Ÿ‘พ Exploit Algorithm & Payload > chall.c ๋”๋ณด๊ธฐ // Name: chall.c // Compile Option: gcc chall.c -o chall -fno-stack-protector #include #include #include #include #include #include #define FLAG_SIZE 0x45 void alarm_handler() { puts("TIME OUT"); .. 2024. 1. 28.
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