note 66714 deleted from function.readdir by bjori
| From: | bjori@php.net | Date: | Sat, 27 May 2006 15:22:52 +0000 |
| Subject: | note 66714 deleted from function.readdir by bjori | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-112365@lists.php.net to get a copy of this message | ||
Note Submitter: Mr. Obvious
Reason: integrated
----
Directed towards:
lars ( at ) noname00 dot org
06-Jan-2005 11:06
Your script has a very dangerous flaw in that you are taking user input with a $_GET statement.
This means that a mischievous person could access the root of your *nux box simply by adding
"../../../" to the URL (assuming home/username/public_html/ directory standing).
Adding something generic before your first IF statement would prevent any "../" attempts
by setting the directory to the current directory.
if (eregi("../",$path)) $path = ".";