破解MariaDB資料庫的管理者登入密碼

本文檔以實戰的形式介紹破解 MariaDB5.5 資料庫的 root 登入密碼

忘記 root 登入密碼

[root@localhost ~]# mysql -uroot -p123

ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)

查找并運作 mysqld_safe 程式繞開 MariaDB5.5 資料庫密碼驗證

[root@localhost ~]# find / -name mysqld_safe

/usr/bin/mysqld_safe

[root@localhost ~]# /usr/bin/mysqld_safe --skip-grant-tables &

直接使用 mysql 指令登入 MariaDB5.5 資料庫并修改 root 登入密碼

[root@localhost ~]# mysql

Welcome to the MariaDB monitor. Commands end with ; or g.

Your MariaDB connection id is 1

Server version: 5.5.52-MariaDB MariaDB Server

Copyright (c) 2000, 2016, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.

MariaDB [(none)]> show databases;
Database
information_schema
mysql
performance_schema

3 rows in set (0.00 sec)

MariaDB [(none)]> use mysql;

Reading table information for completion of table and column names

You can turn off this feature to get a quicker startup with -A

Database changed

MariaDB [mysql]> UPDATE user SET password=password("New-password") WHERE user='root';

Query OK, 3 rows affected (0.00 sec)

Rows matched: 3 Changed: 3 Warnings: 0

MariaDB [mysql]> flush privileges;

Query OK, 0 rows affected (0.00 sec)

MariaDB [mysql]> exit

Bye

使用新密碼 New-password 登入 MariaDB5.5 資料庫

[root@localhost ~]# ps au

USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND

root 3986 0.0 0.1 115380 2084 tty1 Ss+ 19:53 0:02 -bash

root 22483 0.0 0.1 115384 2076 pts/0 Ss 21:54 0:00 -bash

root 22910 0.0 0.0 113252 1592 pts/0 S 21:59 0:00 /bin/sh /usr/bin/mysqld_safe --ski

mysql 23066 0.3 4.6 839268 86192 pts/0 Sl 21:59 0:00 /usr/libexec/mysqld --basedir=/usr

root 23091 0.0 0.0 151056 1824 pts/0 R+ 22:00 0:00 ps au

[root@localhost ~]# kill -9 22910

[root@localhost ~]# mysql -uroot -pNew-password

Your MariaDB connection id is 2

MariaDB [(none)]>

MariaDB [(none)]> exit

[1]+ Killed /usr/bin/mysqld_safe --skip-grant-tables

使用其他密碼不能登入 MariaDB5.5 資料庫

[root@localhost ~]# mysql -uroot -pNew-passwordd

[root@localhost ~]# rpm -qa mariadb

mariadb-5.5.52-1.el7.x86_64

總結

以上就是破解 MariaDB5.5 資料庫的 root 登入密碼的實戰方法，希望能幫助到大家。