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-rw-r--r--mysql-test/t/failed_auth_unixsocket.test30
1 files changed, 30 insertions, 0 deletions
diff --git a/mysql-test/t/failed_auth_unixsocket.test b/mysql-test/t/failed_auth_unixsocket.test
new file mode 100644
index 00000000000..ba31cf6a59f
--- /dev/null
+++ b/mysql-test/t/failed_auth_unixsocket.test
@@ -0,0 +1,30 @@
+--source include/have_unix_socket.inc
+
+#
+# MDEV-3909 remote user enumeration
+# unix_socket tests
+#
+update mysql.user set plugin='unix_socket';
+flush privileges;
+
+--replace_result $MASTER_MYSOCK MASTER_SOCKET $MASTER_MYPORT MASTER_PORT $USER USER
+--error ER_PLUGIN_IS_NOT_LOADED
+connect (fail,localhost,$USER);
+
+--error ER_PLUGIN_IS_NOT_LOADED
+change_user $USER;
+
+eval install plugin unix_socket soname '$AUTH_SOCKET_SO';
+
+--replace_result $MASTER_MYSOCK MASTER_SOCKET $MASTER_MYPORT MASTER_PORT $USER USER
+--error ER_ACCESS_DENIED_NO_PASSWORD_ERROR
+connect (fail,localhost,$USER);
+
+--replace_result $USER USER
+--error ER_ACCESS_DENIED_NO_PASSWORD_ERROR
+change_user $USER;
+
+update mysql.user set plugin='';
+flush privileges;
+uninstall plugin unix_socket;
+