White Security

Mommy! what is PATH environment in Linux? ssh cmd1@pwnable.kr -p2222 (pw:guest) Toddler's Bottle 14번 문제 PATH 환경변수에 관한 문제입니다. #include #include int filter(char* cmd){ int r=0; r += strstr(cmd, "flag")!=0; r += strstr(cmd, "sh")!=0; r += strstr(cmd, "tmp")!=0; return r; } int main(int argc, char* argv[], char** envp){ putenv("PATH=/thankyouverymuch"); if(filter(argv[1])) return 0; system( argv[1] ..

Mommy! I made a lotto program for my homework. do you want to play? ssh lotto@pwnable.kr -p2222 (pw:guest) Toddler's Bottle 13번 문제 로또 프로그램에 관한 문제로 ssh 계정이 주어집니다. #include #include #include #include unsigned char submit[6]; void play(){ int i; printf("Submit your 6 lotto bytes : "); fflush(stdout); int r; r = read(0, submit, 6); printf("Lotto Start!\n"); //sleep(1); // generate lotto numbers int ..

Hey! check out this C implementation of blackjack game! I found it online * http://cboard.cprogramming.com/c-programming/114023-simple-blackjack-program.html I like to give my flags to millionares. how much money you got? Running at : nc pwnable.kr 9009 Toddler's Bottle 12번 문제 블랙잭 게임의 소스코드와 Netcat 접속을 위한 주소가 주어집니다. int betting() //Asks user amount to bet { printf("\n\nEnter Bet: $"); scanf("%d",..