ID:               50815
 User updated by:  jd at cpanel dot net
 Reported By:      jd at cpanel dot net
-Status:           Feedback
+Status:           Open
 Bug Type:         MySQL related
 Operating System: any
 PHP Version:      5.3.1
 New Comment:

I'd agree with you there.  They should be using the long hashes.  The
problem is when you have a system that's been in place for a very long
time and the passwords haven't ever changed.  The short hashes are still
in the user table and the existing libmysqlclient happily connects with
them.  For some users this makes switching to mysqlnd a very difficult
process.  You need to force all of these old account to reenter their
passwords so they can be rehashed.

The main point is that if it's insecure to the point where it's worth
breaking backward compatability, why do the latest versions of
libmysqlclient continue to provide this functionality?  The short hashes
in the user table are the security problem, not the ability to send them
from the client side, right?


Previous Comments:
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[2010-01-21 19:07:00] johan...@php.net

The old hashing algorithm was insecure, which means passwords could be
guessed with little effort. Additionally the last MySQL Server version
which depended on this format is 4.0, which is out-of-support by MySQL
(see http://www.mysql.com/about/legal/lifecycle/ ) since 2006 (extended
support for customers ended 2008-09).

Why do you need an insecure auth mechanism?

------------------------------------------------------------------------

[2010-01-21 18:57:50] jd at cpanel dot net

Description:
------------
This is a wishlist item.  We've found it impossible to use the mysqlnd
driver for the PHP MySQL extension since it does not support the 323
style short password hash fallback that the normal libmysqlclient
handles during authentication.  This means that any mysql users that
were added while short password hashes were in use have to change their
passwords to long hashes before connecting is possible.

Most likely, this is what bug 44082 was encountering.  There are
several other reports of this problem outside the PHP BTS.

The only reference to this limitation I see in the official description
of mysqlnd is "The MySQL native driver for PHP does not support the
MySQL Server 4.0 or earlier."  (
http://dev.mysql.com/downloads/connector/php-mysqlnd/ )  This is
misleading since the 323 short password hashes work fine using
libmysqlclient with MySQL 4.1+.



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