Phpspy 2010 身份验证绕过漏洞

EXP代码：

利用：

foreach(array('_GET','_POST') as $_request) {
    foreach($$_request as $_key => $_value) {
        if ($_key{0} != '_') {
            if (IS_GPC) {
                $_value = s_array($_value);
            }
            $$_key = $_value;
        }
    }
}