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blukat - 3 pt Sometimes, pwnable is strange... hint: if this challenge is hard, you are a skilled player. ssh blukat@pwnable.kr -p2222 (pw: guest) blukat@ubuntu:~$ ls -l total 20 -r-xr-sr-x 1 root blukat_pwn 9144 Aug 8 06:44 blukat -rw-r--r-- 1 root root 645 Aug 8 06:43 blukat.c -rw-r----- 1 root blukat_pwn 33 Jan 6 2017 password password 파일의 그룹 권한은 blukat_pwn blukat@ubuntu:~$ cat password cat: ..