问题描述：
（1）数据库系统配置不合规的密码长度及复杂度策略。
■MySQL数据库系统未启用“validate_password”
数据库系统配置合规的密码有效周期策略
■MySQL数据库配置未合理的“password_lifetime”参数
整改建议：
（1）建议数据库启用validate_password插件，且至少配置以下策略 ■validate_password_length 密码最小长度 ■validate_password_mixed_case_count 密码至少要包含的小写字母个数和大写字母个数 ■validate_password_number_count 密码至少要包含的数字个数 ■validate_password_special_char_count密码至少要包含的特殊字符数；
（2）建议数据库配置 ‘default_password_lifetime‘; 默认密码有效期不为0（具体有效期视业务需求定，一般情况可参考设为90-180天）。
整改结果：
MySQL8.0 安装卸载validate_password插件 和 validate_password组件
安装卸载 validate_password 组件
在mysql客户端执行
安装 validate_password 组件
### 安装 validate_password 组件
INSTALL COMPONENT 'file://component_validate_password';
卸载 validate_password 组件
### 卸载 validate_password 组件
UNINSTALL COMPONENT 'file://component_validate_password';
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validate_password：
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安装validate_password插件：
有些版本较低或未进行全部插件安装的MySQL，会发现如下情况：
mysql> SHOW VARIABLES LIKE 'validate_password%';
Empty set (0.00 sec)
没看错，未安装~
那么请执行如下命令安装即可：
mysql> install plugin validate_password soname 'validate_password.so';
Query OK, 0 rows affected (0.17 sec)
卸载命令：
mysql> UNINSTALL PLUGIN validate_password;
Query OK, 0 rows affected, 1 warning (0.01 sec)
安装后可通过命令 show plugins 查看已安装的MySQL插件：状态为：ACTIVE表示已激活
mysql> show plugins;
+---------------------------------+----------+--------------------+----------------------+---------+
| Name | Status | Type | Library | License |
+---------------------------------+----------+--------------------+----------------------+---------+
| binlog | ACTIVE | STORAGE ENGINE | NULL | GPL |
| mysql_native_password | ACTIVE | AUTHENTICATION | NULL | GPL |
| sha256_password | ACTIVE | AUTHENTICATION | NULL | GPL |
| caching_sha2_password | ACTIVE | AUTHENTICATION | NULL | GPL |
| sha2_cache_cleaner | ACTIVE | AUDIT | NULL | GPL |
| CSV | ACTIVE | STORAGE ENGINE | NULL | GPL |
| MEMORY | ACTIVE | STORAGE ENGINE | NULL | GPL |
| InnoDB | ACTIVE | STORAGE ENGINE | NULL | GPL |
| INNODB_TRX | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
| INNODB_CMP | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
| INNODB_CMP_RESET | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
| INNODB_CMPMEM | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
| INNODB_CMPMEM_RESET | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
| INNODB_CMP_PER_INDEX | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
| INNODB_CMP_PER_INDEX_RESET | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
| INNODB_BUFFER_PAGE | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
| INNODB_BUFFER_PAGE_LRU | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
| INNODB_BUFFER_POOL_STATS | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
| INNODB_TEMP_TABLE_INFO | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
| INNODB_METRICS | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
| INNODB_FT_DEFAULT_STOPWORD | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
| INNODB_FT_DELETED | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
| INNODB_FT_BEING_DELETED | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
| INNODB_FT_CONFIG | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
| INNODB_FT_INDEX_CACHE | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
| INNODB_FT_INDEX_TABLE | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
| INNODB_TABLES | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
| INNODB_TABLESTATS | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
| INNODB_INDEXES | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
| INNODB_TABLESPACES | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
| INNODB_COLUMNS | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
| INNODB_VIRTUAL | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
| INNODB_CACHED_INDEXES | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
| INNODB_SESSION_TEMP_TABLESPACES | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
| INNODB_HOT_ROW_UPDATE_STATS | ACTIVE | INFORMATION SCHEMA | NULL | GPL |
| MyISAM | ACTIVE | STORAGE ENGINE | NULL | GPL |
| MRG_MYISAM | ACTIVE | STORAGE ENGINE | NULL | GPL |
| PERFORMANCE_SCHEMA | ACTIVE | STORAGE ENGINE | NULL | GPL |
| TempTable | ACTIVE | STORAGE ENGINE | NULL | GPL |
| ARCHIVE | ACTIVE | STORAGE ENGINE | NULL | GPL |
| BLACKHOLE | ACTIVE | STORAGE ENGINE | NULL | GPL |
| FEDERATED | DISABLED | STORAGE ENGINE | NULL | GPL |
| ngram | ACTIVE | FTPARSER | NULL | GPL |
| mysqlx_cache_cleaner | ACTIVE | AUDIT | NULL | GPL |
| mysqlx | ACTIVE | DAEMON | NULL | GPL |
| AUDIT_CDB | ACTIVE | AUDIT | audit_cdb.so | GPL |
| rpl_semi_sync_master | ACTIVE | REPLICATION | semisync_master.so | GPL |
| rpl_semi_sync_slave | ACTIVE | REPLICATION | semisync_slave.so | GPL |
| validate_password | ACTIVE | VALIDATE PASSWORD | validate_password.so | GPL |
+---------------------------------+----------+--------------------+----------------------+---------+
49 rows in set (0.00 sec)
参考：
https://blog.51cto.com/u_13677412/3673749
https://blog.csdn.net/kfepiza/article/details/126913185
https://www.jianshu.com/p/f17ee1b09526
