DedeCMS---V5.7_UTF8_SP1、SP2---任意前台用户登录（cookie伪造）

//php5构造函数
    function __construct($kptime = -1, $cache=FALSE)
    {
        global $dsql;
        if($kptime==-1){
            $this->M_KeepTime = 3600 * 24 * 7;
        }else{
            $this->M_KeepTime = $kptime;
        }
        $formcache = FALSE;
        $this->M_ID = $this->GetNum(GetCookie("DedeUserID"));
        $this->M_LoginTime = GetCookie("DedeLoginTime");
        $this->fields = array();
        $this->isAdmin = FALSE;
        if(empty($this->M_ID))
        {
            $this->ResetUser();
        }else{
            $this->M_ID = intval($this->M_ID);
            
            if ($cache)
            {
                $this->fields = GetCache($this->memberCache, $this->M_ID);
                if( empty($this->fields) )
                {
                    $this->fields = $dsql->GetOne("Select * From `#@__member` where mid=‘{$this->M_ID}‘ ");
                } else {
                    $formcache = TRUE;
                }
            } else {
                $this->fields = $dsql->GetOne("Select * From `#@__member` where mid=‘{$this->M_ID}‘ ");
            }
                
            if(is_array($this->fields)){
                #api{{
                if(defined(‘UC_API‘) && @include_once DEDEROOT.‘/uc_client/client.php‘)
                {
                    if($data = uc_get_user($this->fields[‘userid‘]))
                    {
                        if(uc_check_avatar($data[0]) && !strstr($this->fields[‘face‘],UC_API))
                        {
                            $this->fields[‘face‘] = UC_API.‘/avatar.php?uid=‘.$data[0].‘&size=middle‘;
                            $dsql->ExecuteNoneQuery("UPDATE `#@__member` SET `face`=‘".$this->fields[‘face‘]."‘ WHERE `mid`=‘{$this->M_ID}‘");
                        }
                    }
                }

/**
 *  获取Cookie记录
 *
 * @param     $key   键名
 * @return    string
 */
if ( ! function_exists(‘GetCookie‘))
{
    function GetCookie($key)
    {
        global $cfg_cookie_encode;
        if( !isset($_COOKIE[$key]) || !isset($_COOKIE[$key.‘__ckMd5‘]) )
        {
            return ‘‘;
        }
        else
        {
            if($_COOKIE[$key.‘__ckMd5‘]!=substr(md5($cfg_cookie_encode.$_COOKIE[$key]),0,16))
            {
                return ‘‘;
            }
            else
            {
                return $_COOKIE[$key];
            }
        }
    }
}

    /**
     *  获取整数值
     *
     * @access    public
     * @param     string  $fnum  处理的数值
     * @return    string
     */
    function GetNum($fnum){
        $fnum = preg_replace("/[^0-9\.]/", ‘‘, $fnum);
        return $fnum;
    }

/*-----------------------------
//会员空间主页
function space_index(){  }
------------------------------*/
else
{
    require_once(DEDEMEMBER.‘/inc/config_space.php‘);
    if($action == ‘‘)
    {
        include_once(DEDEINC."/channelunit.func.php");
        $dpl = new DedeTemplate();
        $tplfile = DEDEMEMBER."/space/{$_vars[‘spacestyle‘]}/index.htm";

        //更新最近访客记录及站点统计记录
        $vtime = time();
        $last_vtime = GetCookie(‘last_vtime‘);
        $last_vid = GetCookie(‘last_vid‘);
        if(empty($last_vtime))
        {
            $last_vtime = 0;
        }
        if($vtime - $last_vtime > 3600 || !preg_match(‘#,‘.$uid.‘,#i‘, ‘,‘.$last_vid.‘,‘) )
        {
            if($last_vid!=‘‘)
            {
                $last_vids = explode(‘,‘,$last_vid);
                $i = 0;
                $last_vid = $uid;
                foreach($last_vids as $lsid)
                {
                    if($i>10)
                    {
                        break;
                    }
                    else if($lsid != $uid)
                    {
                        $i++;
                        $last_vid .= ‘,‘.$last_vid;
                    }
                }
            }
            else
            {
                $last_vid = $uid;
            }
            PutCookie(‘last_vtime‘, $vtime, 3600*24, ‘/‘);
            PutCookie(‘last_vid‘, $last_vid, 3600*24, ‘/‘);