Access denied after setting user's password with SHA256 in phpMyAdmin

Question

After seeing that default passwords generated by phpMyAdmin used mysql_native_password and therefore hashes didn\'t changed when equal passwords where used, I updated one us

Answer 1

I know the answer has been up there, but I wanna just put some instruction that help me to solve this problem. First: was hard to me change the authentication type of mysql, I couldn't to that and I couldn't update PHP from MAC system, I don't know how to to that and I just didn't wanna mess with everything, so what I did? I installed php from BREW and I've changed the httpd.conf.

1. install BREW.

2. install php from brew.

3. open the file [httpd.conf] using terminal:

   sudo nano /etc/apache2/httpd.conf
   

4. go to line:

   LoadModule php7_module libexec/apache2/libphp7.so
   

   and comment it.

5. insert this line:

   LoadModule php7_module /usr/local/opt/php/lib/httpd/modules/libphp7.so
   

So, you just change the PHP MAC system to PHP BREW - that is updated, new version.

Answer 2

MySQL has recently changed the default authentication type and, between MySQL and PHP, this change took quite a while to be supported by PHP. The old method was mysql_native_password and the new one is caching_sha2_password. PHP versions starting with 7.4 support the new method. Since this is related to PHP itself, phpMyAdmin supporting this method requires you to run an updated PHP installation (phpMyAdmin itself is ready for this change, but your ability to use it depends on your PHP version).

You basically have two options:

1. Upgrade your PHP to 7.4 or newer.
2. Change the authentication type on your user to the older mysql_native_password. You can do that by editing the user (from the User accounts tab in phpMyAdmin, edit the user, then change the authentication method from the dropdown).

Answer 3

Problem was that ubuntu's 18.04.3 install had outdated MySQL, PHP and phpMyAdmin.

To solve the problem I needed to update MySQL from 5.7 to 8, PHP from 7.3 to 7.4 and phpMyAdmin to 4.9.2.

After updating I can log in with users that has a caching_sha2_password password so, for those with same problem as mine, check your current versions of PHP, MySQL and phpMyAdmin and upgrade them if needed. (Perform a backup first as you may encounter data loss)