KEY

[pwnable.kr][Toddler] leg 문제풀이

leg #include #include int key1(){ asm("mov r3, pc\n"); } int key2(){ asm( "push{r6}\n" "addr6, pc, $1\n" "bxr6\n" ".code 16\n" "movr3, pc\n" "addr3, $0x4\n" "push{r3}\n" "pop{pc}\n" ".code32\n" "pop{r6}\n" ); } int key3(){ asm("mov r3, lr\n"); } int main(){ int key=0; printf("Daddy has very strong arm! : "); scanf("%d", &key); if( (key1()+key2()+key3()) == key ){ printf("Congratz!\n"); int fd = ..