phpMyAdmin Improper Privilege Management
Critical severity
GitHub Reviewed
Published
May 13, 2022
to the GitHub Advisory Database
•
Updated Apr 24, 2024
Package
Affected versions
>= 4.0, < 4.0.10.20
>= 4.7.0-beta1, < 4.7.0
>= 4.4.0, <= 4.4.15.10
>= 4.6.0, <= 4.6.6
Patched versions
4.0.10.20
4.7.0
Description
Published by the National Vulnerability Database
May 1, 2018
Published to the GitHub Advisory Database
May 13, 2022
Reviewed
Apr 24, 2024
Last updated
Apr 24, 2024
An issue was discovered in libraries/common.inc.php in phpMyAdmin 4.0 before 4.0.10.20, 4.4.x, 4.6.x, and 4.7.0 prereleases. The restrictions caused by $cfg['Servers'][$i]['AllowNoPassword'] = false are bypassed under certain PHP versions (e.g., version 5). This can allow the login of users who have no password set even if the administrator has set $cfg['Servers'][$i]['AllowNoPassword'] to false (which is also the default). This occurs because some implementations of the PHP substr function return false when given '' as the first argument.
References