1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
--source include/not_embedded.inc
create database db1;
use db1;
create table t1(a int);
insert into t1 values (1),(2),(3);
create table t2(a int);
CREATE USER 'foo'@'%';
CREATE USER 'bar'@'%';
create definer=foo SQL SECURITY definer view db1.v1 as select * from db1.t1;
delimiter |;
create definer=foo function f1 (a int) returns INT SQL SECURITY DEFINER
BEGIN
insert into t2 select * from t1;
return a+1;
END|
delimiter ;|
--change_user foo
set optimizer_trace="enabled=on";
--error 1142
select * from db1.t1;
select * from information_schema.OPTIMIZER_TRACE;
set optimizer_trace="enabled=off";
--change_user root
grant select(a) on db1.t1 to 'foo'@'%';
--change_user foo
set optimizer_trace="enabled=on";
select * from db1.t1;
--echo # INSUFFICIENT PRIVILEGES should be set to 1
--echo # Trace and Query should be empty
--echo # We need SELECT privilege on the table db1.t1;
select * from information_schema.OPTIMIZER_TRACE;
set optimizer_trace="enabled=off";
--change_user root
select * from information_schema.OPTIMIZER_TRACE;
grant select on db1.t1 to 'foo'@'%';
grant select on db1.t2 to 'foo'@'%';
--change_user foo
set optimizer_trace="enabled=on";
--echo #
--echo # SELECT privilege on the table db1.t1
--echo # The trace would be present.
--echo #
select * from db1.t1;
select * from information_schema.OPTIMIZER_TRACE;
set optimizer_trace="enabled=off";
--change_user root
grant select on db1.v1 to 'foo'@'%';
grant show view on db1.v1 to 'foo'@'%';
grant select on db1.v1 to 'bar'@'%';
grant show view on db1.v1 to 'bar'@'%';
--change_user foo
select current_user();
set optimizer_trace="enabled=on";
--disable_ps2_protocol
select * from db1.v1;
--enable_ps2_protocol
select * from information_schema.OPTIMIZER_TRACE;
set optimizer_trace="enabled=off";
--change_user bar
select current_user();
set optimizer_trace="enabled=on";
select * from db1.v1;
--echo #
--echo # INSUFFICIENT PRIVILEGES should be set to 1
--echo # Trace and Query should be empty
--echo # Privileges for the underlying tables of the
--echo # view should also be present for the current user
--echo #
select * from information_schema.OPTIMIZER_TRACE;
set optimizer_trace="enabled=off";
--change_user root
grant execute on function db1.f1 to 'foo'@'%';
grant execute on function db1.f1 to 'bar'@'%';
grant select on db1.t1 to 'bar'@'%';
grant insert on db1.t2 to 'foo'@'%';
--change_user foo
select current_user();
set optimizer_trace="enabled=on";
select db1.f1(a) from db1.t1;
select INSUFFICIENT_PRIVILEGES from information_schema.OPTIMIZER_TRACE;
set optimizer_trace="enabled=off";
--change_user bar
select current_user();
set optimizer_trace="enabled=on";
--echo #
--echo # The trace should be empty, because the current user
--echo # does not have INSERT privilege for table t2 which is
--echo # used in the function f1
--echo #
select db1.f1(a) from db1.t1;
select * from information_schema.OPTIMIZER_TRACE;
set optimizer_trace="enabled=off";
--change_user root
select current_user();
REVOKE ALL PRIVILEGES, GRANT OPTION FROM foo;
--change_user root
drop user if exists foo;
drop user if exists bar;
drop table db1.t1, db1.t2;
drop database db1;
--echo #
--echo # Privilege checking for optimizer trace across connections
--echo #
connection default;
create database db1;
use db1;
create table t1(a int);
insert into t1 values (1),(2),(3);
create table t2(a int);
CREATE USER 'foo'@'localhost';
CREATE USER 'bar'@'localhost';
grant all on *.* to foo@localhost with grant option;
grant all on *.* to bar@localhost with grant option;
#grant select on db1.t1 to bar@localhost;
#grant insert on db1.t2 to bar@localhost;
connect (con_foo,localhost, foo,, db1);
connection default;
connect (con_bar,localhost, bar,, db1);
connection default;
create definer=foo@localhost SQL SECURITY definer view db1.v1 as select * from db1.t1;
delimiter |;
create function f1 (a int) returns INT SQL SECURITY DEFINER
BEGIN
insert into t2 select * from t1;
return a+1;
END|
delimiter ;|
grant execute on function f1 to bar@localhost;
--disable_view_protocol
connection con_foo;
set optimizer_trace='enabled=on';
select * from db1.t1;
--echo #
--echo # Test that security context changes are allowed when, and only
--echo # when, invoker has all global privileges.
--echo #
select query, INSUFFICIENT_PRIVILEGES from information_schema.OPTIMIZER_TRACE;
set optimizer_trace='enabled=off';
connection con_bar;
set optimizer_trace='enabled=on';
select f1(a) from db1.t1;
select query, INSUFFICIENT_PRIVILEGES from information_schema.OPTIMIZER_TRACE;
set optimizer_trace='enabled=off';
connection default;
revoke shutdown on *.* from foo@localhost;
disconnect con_foo;
connect (con_foo, localhost, foo,, db1);
connection con_foo;
set optimizer_trace='enabled=on';
select f1(a) from db1.t1;
--echo #
--echo # Test to check if invoker has all global privileges or not, only then
--echo # the security context changes are allowed. The user has been revoked
--echo # shutdown privilege so INSUFFICIENT PRIVILEGES should be set to 1.
--echo #
select query, INSUFFICIENT_PRIVILEGES from information_schema.OPTIMIZER_TRACE;
set optimizer_trace='enabled=off';
--enable_view_protocol
connection default;
select current_user();
select * from db1.v1;
drop user foo@localhost, bar@localhost;
drop view db1.v1;
drop table db1.t1;
drop database db1;
set optimizer_trace="enabled=off";
|
