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Displaying posts with tag: niceversionofvalerii (reset)
MySQL 8.0 allows unprivileged user access to its data if table mysql.user does not exists

Yesterday my Percona colleague Ceri Williams found a nasty bug in MySQL 8.0. Its twin for Percona Server reported at PS-5431.

He was installing MySQL Server 8.0 having not supported option in his configuration file. Thus initialization failed, but, surprisingly, the subsequent restart was successful and he was able to create, modify and delete tables in his MySQL installation. In other words: he got full access to the database. But he did not create any user account yet!

This new instance of MySQL Server did not have privilege tables, particularly …

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