socket exploitation
socket vuln #include <stdio.h> #include <unistd.h> #include <stdlib.h> #include <string.h> #include <netdb.h> #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> #include <arpa/inet.h> void vuln(int childfd) { char buffer[30]; read(childfd, buffer, 500); write(childfd, "Thanks!", 8); } void win() { system("/bin/sh"); } ////////////////////// Socket Stuff /* * error - wrapper for perror */ void error(char *msg) { perror(msg); exit(1); } int main(int argc, char **argv) { int parentfd; /* parent socket */ int childfd; /* child socket */ int portno; /* port to listen on */ int clientlen; /* byte size of client's address */ struct sockaddr_in serveraddr; /* server's addr */ struct sockaddr_in clientaddr; /* client addr */ struct hostent *hostp; /* client host info */ char *hostaddrp; /* dotted decimal host addr string */ int optval; /* flag value for setsockopt */ int n; /* message byte size */ /* * check……