Rows:
| CHALLENGE | AUTHORS | SOLVES (CURRENT) | SOLVE RATE (AT CONTEST TIME) |
|---|---|---|---|
AlpacaHack 2100Misc | 1633 solves | - | |
WelcomeMisc | 1544 solves | - | |
a fact of CTFCrypto | 883 solves | - | |
Simple LoginWeb | 611 solves | Top 28% = 84/300 users | |
EmojifyWeb | 594 solves | - | |
567 solves | - | ||
505 solves | Top 73% = 683/928 teams | ||
super-tomatoCrypto | 388 solves | - | |
hit-and-missMisc | 387 solves | - | |
echoPwn | 357 solves | Top 32% = 56/174 users | |
Xmas LoginWeb | 353 solves | - | |
343 solves | - | ||
Alpaca BankWeb | 331 solves | - | |
325 solves | - | ||
size limitCrypto | 317 solves | - | |
Encoding BasicsMisc Crypto | 317 solves | - | |
312 solves | - | ||
🐈Web | 309 solves | - | |
BarsWeb | 298 solves | - | |
108Misc | 296 solves | - |
Rows:
If the return address gets overwritten by accident, you could even spawn a shell... but this program is totally safe, right?
main.c とそれをコンパイルしたバイナリ chal が与えられています。pos, val の入力を受け付けます。win 関数を実行してシェルを起動することです。pos, val を送信すると win 関数が呼べるので、そのような値を見つけてください。nc コマンドで接続します。flag.txt を読んで、フラグを取得してください。