LoB2 Level18. SUCCUBUS -> NIGHTMARE [succubus@localhost succubus]$ cat nightmare.c/* The Lord of the BOF : The Fellowship of the BOF - nightmare - PLT*/ #include #include #include #include main(int argc, char *argv[]){ char buffer[40]; char *addr; if(argc < 2){ printf("argv error\n"); exit(0); } // check address addr = (char *)&strcpy; if(memcmp(argv[1]+44, &addr, 4) != 0){ printf("You must fall in love with strcpy()\n"); exit(0);.. 2015. 2. 18. Level17. ZOMBIE_ASSASSIN -> SUCCUBUS 먼저 소스를 확인해본다. [zombie_assassin@localhost zombie_assassin]$ cat succubus.c/* The Lord of the BOF : The Fellowship of the BOF - succubus - calling functions continuously*/ #include #include #include // the inspectorint check = 0; void MO(char *cmd){ if(check != 4) exit(0); printf("welcome to the MO!\n"); // olleh! system(cmd);} void YUT(void){ if(check != 3) exit(0); printf("welcome to the YUT!\n".. 2015. 2. 18. 이전 1 다음
