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957cb7b7ba
- `SET DEFAULT ROLE xxx [FOR yyy]` should say:
"User yyy has not been granted a role xxx" if:
- The current user (not the user `yyy` in the FOR clause) can see the
role xxx. It can see the role if:
* role exists in `mysql.roles_mappings` (traverse the graph),
* If the current user has read access on `mysql.user` table - in
that case, it can see all roles, granted or not.
- Otherwise it should be "Invalid role specification".
In other words, it should not be possible to use `SET DEFAULT ROLE` to discover whether a specific role exist or not.
118 lines
5.4 KiB
Text
118 lines
5.4 KiB
Text
create user test_user@localhost;
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create role test_role1;
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grant test_role1 to test_user@localhost;
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create role test_role2;
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grant test_role2 to test_role1;
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select user, host from mysql.user where user not like 'root';
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user host
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test_role1
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test_role2
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test_user localhost
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select * from mysql.roles_mapping where User like 'test_user';
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Host User Role Admin_option
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localhost test_user test_role1 N
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select * from mysql.roles_mapping where User like 'test_role1';
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Host User Role Admin_option
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test_role1 test_role2 N
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grant select on *.* to test_role2;
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select * from mysql.user where user like 'test_role1';
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Host User Password Select_priv Insert_priv Update_priv Delete_priv Create_priv Drop_priv Reload_priv Shutdown_priv Process_priv File_priv Grant_priv References_priv Index_priv Alter_priv Show_db_priv Super_priv Create_tmp_table_priv Lock_tables_priv Execute_priv Repl_slave_priv Repl_client_priv Create_view_priv Show_view_priv Create_routine_priv Alter_routine_priv Create_user_priv Event_priv Trigger_priv Create_tablespace_priv ssl_type ssl_cipher x509_issuer x509_subject max_questions max_updates max_connections max_user_connections plugin authentication_string password_expired is_role default_role max_statement_time
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test_role1 N N N N N N N N N N N N N N N N N N N N N N N N N N N N N 0 0 0 0 N Y 0.000000
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select * from mysql.user where user like 'test_role2';
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Host User Password Select_priv Insert_priv Update_priv Delete_priv Create_priv Drop_priv Reload_priv Shutdown_priv Process_priv File_priv Grant_priv References_priv Index_priv Alter_priv Show_db_priv Super_priv Create_tmp_table_priv Lock_tables_priv Execute_priv Repl_slave_priv Repl_client_priv Create_view_priv Show_view_priv Create_routine_priv Alter_routine_priv Create_user_priv Event_priv Trigger_priv Create_tablespace_priv ssl_type ssl_cipher x509_issuer x509_subject max_questions max_updates max_connections max_user_connections plugin authentication_string password_expired is_role default_role max_statement_time
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test_role2 Y N N N N N N N N N N N N N N N N N N N N N N N N N N N N 0 0 0 0 N Y 0.000000
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select * from mysql.roles_mapping;
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ERROR 42000: SELECT command denied to user 'test_user'@'localhost' for table 'roles_mapping'
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show grants;
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Grants for test_user@localhost
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GRANT USAGE ON *.* TO 'test_user'@'localhost'
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GRANT test_role1 TO 'test_user'@'localhost'
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select current_user(), current_role();
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current_user() current_role()
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test_user@localhost NULL
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set role test_role1;
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select current_user(), current_role();
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current_user() current_role()
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test_user@localhost test_role1
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show grants;
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Grants for test_user@localhost
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GRANT SELECT ON *.* TO 'test_role2'
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GRANT USAGE ON *.* TO 'test_role1'
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GRANT USAGE ON *.* TO 'test_user'@'localhost'
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GRANT test_role1 TO 'test_user'@'localhost'
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GRANT test_role2 TO 'test_role1'
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select * from mysql.roles_mapping where Host='';
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Host User Role Admin_option
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test_role1 test_role2 N
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show grants;
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Grants for test_user@localhost
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GRANT SELECT ON *.* TO 'test_role2'
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GRANT USAGE ON *.* TO 'test_role1'
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GRANT USAGE ON *.* TO 'test_user'@'localhost'
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GRANT test_role1 TO 'test_user'@'localhost'
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GRANT test_role2 TO 'test_role1'
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set role none;
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select current_user(), current_role();
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current_user() current_role()
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test_user@localhost NULL
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show grants;
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Grants for test_user@localhost
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GRANT USAGE ON *.* TO 'test_user'@'localhost'
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GRANT test_role1 TO 'test_user'@'localhost'
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select * from mysql.roles_mapping;
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ERROR 42000: SELECT command denied to user 'test_user'@'localhost' for table 'roles_mapping'
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show grants;
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Grants for test_user@localhost
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GRANT USAGE ON *.* TO 'test_user'@'localhost'
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GRANT test_role1 TO 'test_user'@'localhost'
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set role test_role2;
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ERROR OP000: User `test_user@localhost` has not been granted role `test_role2`
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select current_user(), current_role();
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current_user() current_role()
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test_user@localhost NULL
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show grants;
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Grants for test_user@localhost
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GRANT USAGE ON *.* TO 'test_user'@'localhost'
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GRANT test_role1 TO 'test_user'@'localhost'
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select * from mysql.roles_mapping;
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ERROR 42000: SELECT command denied to user 'test_user'@'localhost' for table 'roles_mapping'
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show grants;
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Grants for test_user@localhost
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GRANT USAGE ON *.* TO 'test_user'@'localhost'
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GRANT test_role1 TO 'test_user'@'localhost'
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set role test_role1;
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select current_user(), current_role();
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current_user() current_role()
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test_user@localhost test_role1
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show grants;
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Grants for test_user@localhost
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GRANT SELECT ON *.* TO 'test_role2'
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GRANT USAGE ON *.* TO 'test_role1'
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GRANT USAGE ON *.* TO 'test_user'@'localhost'
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GRANT test_role1 TO 'test_user'@'localhost'
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GRANT test_role2 TO 'test_role1'
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select * from mysql.roles_mapping where Host='';
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Host User Role Admin_option
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test_role1 test_role2 N
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show grants;
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Grants for test_user@localhost
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GRANT SELECT ON *.* TO 'test_role2'
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GRANT USAGE ON *.* TO 'test_role1'
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GRANT USAGE ON *.* TO 'test_user'@'localhost'
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GRANT test_role1 TO 'test_user'@'localhost'
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GRANT test_role2 TO 'test_role1'
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set role none;
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select current_user(), current_role();
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current_user() current_role()
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test_user@localhost NULL
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show grants;
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Grants for test_user@localhost
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GRANT USAGE ON *.* TO 'test_user'@'localhost'
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GRANT test_role1 TO 'test_user'@'localhost'
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select * from mysql.roles_mapping;
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ERROR 42000: SELECT command denied to user 'test_user'@'localhost' for table 'roles_mapping'
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delete from mysql.user where user='test_role1';
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delete from mysql.user where user='test_role2';
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delete from mysql.roles_mapping;
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flush privileges;
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drop user 'test_user'@'localhost';
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