Deterministic Fisher–Yates permutation and XOR window reversed to rebuild the file.
Crack MD5 preimage then XOR the blob to recover the M*CTF flag.
Format-string size mismatch flips is_admin via scanf overrun for instant shell.
Seccomp-only shellcode read/write exploit with bad-byte evasion for V2.
Single-byte srand/rand brute-force to reconstruct the 29-byte FlagCasino string.
Reverse the four-input transistor logic gate, brute-force its truth table, and decode the flag.