Got

[pwnable.kr][Toddler] passcode 문제풀이

PASSCODE keyword : GOT Write, fflush #include #include void login(){ int passcode1; int passcode2; printf("enter passcode1 : "); scanf("%d", passcode1); fflush(stdin); // ha! mommy told me that 32bit is vulnerable to bruteforcing :) printf("enter passcode2 : "); scanf("%d", passcode2); printf("checking...\n"); if(passcode1==338150 && passcode2==13371337){ printf("Login OK!\n"); system("/bin/cat ..

[FC3] Level 3. dark_eyes → hell_fire

hell_fire keyword : another fake_ebp or got overwriting /* The Lord of the BOF : The Fellowship of the BOF - hell_fire - Remote BOF on Fedora Core 3 - hint : another fake ebp or got overwriting - port : TCP 7777 */ #include int main() { char buffer[256]; char saved_sfp[4]; char temp[1024]; printf("hell_fire : What's this smell?\n"); printf("you : "); fflush(stdout); // give me a food fgets(temp,..