BUG#31611 (Security risk with BINLOG statement):

Adding check that the user executing a BINLOG statement has SUPER
privileges and aborting execution of the statement with an error
otherwise.


mysql-test/r/mysqlbinlog.result:
  Result change.
mysql-test/t/mysqlbinlog.test:
  Adding test that generates a BINLOG command for inserting data into a
  table and feed the BINLOG statement into the database as an untrusted
  user. Also checking that insertion into the table fails for that user
  and that the table only contain a single line: the original one inserted.
sql/sql_binlog.cc:
  Adding a check that the executor of the BINLOG command has
  SUPER privileges and give an error and abort execution if not.

1 files changed, 27 insertions, 0 deletions

diff --git a/mysql-test/t/mysqlbinlog.test b/mysql-test/t/mysqlbinlog.test
index 25bd9a402ae..8635bbfab87 100644
--- a/mysql-test/t/mysqlbinlog.test
+++ b/mysql-test/t/mysqlbinlog.test
@@ -250,4 +250,31 @@ flush logs;
 --exec $MYSQL_BINLOG $MYSQLTEST_VARDIR/log/master-bin.000016 >/dev/null 2>/dev/null
 --exec $MYSQL_BINLOG --force-if-open $MYSQLTEST_VARDIR/log/master-bin.000016 >/dev/null 2>/dev/null
 
+--echo BUG#31611: Security risk with BINLOG statement
+
+SET BINLOG_FORMAT=ROW;
+CREATE DATABASE mysqltest1;
+CREATE USER untrusted@localhost;
+GRANT SELECT ON mysqltest1.* TO untrusted@localhost;
+
+SHOW GRANTS FOR untrusted@localhost;
+USE mysqltest1;
+CREATE TABLE t1 (a INT, b CHAR(64));
+flush logs;
+INSERT INTO t1 VALUES (1,USER());
+flush logs;
+echo mysqlbinlog var/log/master-bin.000017 > var/tmp/bug31611.sql;
+exec $MYSQL_BINLOG $MYSQLTEST_VARDIR/log/master-bin.000017 > $MYSQLTEST_VARDIR/tmp/bug31611.sql;
+connect (unsecure,localhost,untrusted,,mysqltest1);
+echo mysql mysqltest1 -uuntrusted < var/tmp/bug31611.sql;
+error 1;
+exec $MYSQL mysqltest1 -uuntrusted < $MYSQLTEST_VARDIR/tmp/bug31611.sql;
+connection unsecure;
+error ER_TABLEACCESS_DENIED_ERROR;
+INSERT INTO t1 VALUES (1,USER());
+
+SELECT * FROM t1;
+connection default;
+DROP DATABASE mysqltest1;
+
 --echo End of 5.1 tests