PHPCMS V9 (plugin.php)本地文件包含漏洞

由于文件/plugin.php对于用户提交的变量未过滤,导致本地文件包含漏洞的产生。
相关代码如下:
文件plugin.php
if(isset($_GET['id'])) {
	list($identification, $filename,$action) = explode('-', $_GET['id']);
	$filename = !empty($filename) ? $filename : $identification;
	$action = !empty($action) ? $action : 'init';
}

$cache = getcache($identification,'plugins');
变量$identification的值来源于$_GET['id'],并进入函数getcache中

Getcache函数在文件/ phpcms/libs/functions/ global.func.php中
function getcache($name, $filepath='', $type='file', $config='') {
	pc_base::load_sys_class('cache_factory','',0);
	if($config) {
		$cacheconfig = pc_base::load_config('cache');
		$cache = cache_factory::get_instance($cacheconfig)->get_cache($config);
	} else {
		$cache = cache_factory::get_instance()->get_cache($type);
	}
	return $cache->get($name, '', '', $filepath);
}

$cache->get()在文件/phpcms/libs/classes/cache_file.class.php
public function get($name, $setting = '', $type = 'data', $module = ROUTE_M) {
		$this->get_setting($setting);
		if(empty($type)) $type = 'data';
		if(empty($module)) $module = ROUTE_M;
		$filepath = CACHE_PATH.'caches_'.$module.'/caches_'.$type.'/';
		$filename = $name.$this->_setting['suf'];
		if (!file_exists($filepath.$filename)) {
			return false;
		} else {
		    if($this->_setting['type'] == 'array') {
		    	$data = @require($filepath.$filename);

最终$_GET['id']变量变为$filename的一部分

测试方法:

  1. http://sebug.net/phpcms/plugin.php?id=可控文件名-1-1