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mariadb-10.4+ empty passwords

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MariaDB-10.4 migrated their authentication to a global_priv table in JSON
format. Also locked user accounts where added. By default the mariadb.sys
is a locked user without a password and there as the owner of the mysql.user
view. As its hazardous for a user to modify this we exclude locked accounts
but still search for mysql_native_password plugin without authentication.

We use versioned comments to process all other versions. The 5.5+ MySQL
version comment is also read by MariaDB (ref: https://mariadb.com/kb/en/comment-syntax/
enabling the processing of plugins on other version that have plugins.

While this branch doesn't yet apply to MySQL-8.0 yet, we add support
for the locked user accounts in MySQL-8.0+ in a versioned comment
(not read by MariaDB).
This commit is contained in:
Daniel Black 2020-12-08 14:00:33 +11:00
parent de4b145e96
commit 0eef9260a8
1 changed files with 7 additions and 3 deletions
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10
mysqltuner.pl
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@ -1810,13 +1810,17 @@ sub security_recommendations {
} }
# Looking for Empty Password # Looking for Empty Password
if ( mysql_version_ge( 5, 5 ) ) { if ( mysql_version_ge(10, 4) ) {
@mysqlstatlist = select_array @mysqlstatlist = select_array
"SELECT CONCAT(user, '\@', host) FROM mysql.user WHERE ($PASS_COLUMN_NAME = '' OR $PASS_COLUMN_NAME IS NULL) AND plugin NOT IN ('unix_socket', 'win_socket', 'auth_pam_compat')"; q{SELECT CONCAT(user, '@', host) FROM mysql.global_priv WHERE
JSON_CONTAINS(Priv, '"mysql_native_password"', '$.plugin') AND JSON_CONTAINS(Priv, '""', '$.authentication_string')
AND NOT JSON_CONTAINS(Priv, 'true', '$.account_locked')};
} }
else { else {
@mysqlstatlist = select_array @mysqlstatlist = select_array
"SELECT CONCAT(user, '\@', host) FROM mysql.user WHERE ($PASS_COLUMN_NAME = '' OR $PASS_COLUMN_NAME IS NULL)"; "SELECT CONCAT(user, '\@', host) FROM mysql.user WHERE ($PASS_COLUMN_NAME = '' OR $PASS_COLUMN_NAME IS NULL)
/*!50501 AND plugin NOT IN ('unix_socket', 'win_socket', 'auth_pam_compat') */
/*!80000 AND account_locked = 'N' AND password_expired = 'N' */";
} }
if (@mysqlstatlist) { if (@mysqlstatlist) {
foreach my $line ( sort @mysqlstatlist ) { foreach my $line ( sort @mysqlstatlist ) {