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Bug #50276: Security flaw in INFORMATION_SCHEMA.TABLES

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check_access() returning false for a database does not
guarantee that the access is granted to it.
This wrong condition in filling the INFORMATION_SCHEMA
tables causes extra tables to be returned to the user
even if he has no rights to see them.
Fixed by correcting the condition.
This commit is contained in:
Georgi Kodinov
2010-01-21 17:14:10 +02:00
parent e4b7138561
commit 679de2bb5e
3 changed files with 53 additions and 4 deletions
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22
mysql-test/r/information_schema.result
View File

@ -1725,4 +1725,26 @@ SELECT 'OK' AS TEST_RESULT FROM INFORMATION_SCHEMA.PROCESSLIST WHERE time < 0;
TEST_RESULT
OK
SET TIMESTAMP=DEFAULT;
#
# Bug #50276: Security flaw in INFORMATION_SCHEMA.TABLES
#
CREATE DATABASE db1;
USE db1;
CREATE TABLE t1 (id INT);
CREATE USER nonpriv;
USE test;
# connected as nonpriv
# Should return 0
SELECT COUNT(*) FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME='t1';
COUNT(*)
0
USE INFORMATION_SCHEMA;
# Should return 0
SELECT COUNT(*) FROM TABLES WHERE TABLE_NAME='t1';
COUNT(*)
0
# connected as root
DROP USER nonpriv;
DROP TABLE db1.t1;
DROP DATABASE db1;
End of 5.1 tests.