3.6M MySQL Servers Found Exposed Online

Researchers from Shadowserver recommend removing the servers from the Internet to shrink external attack surface.

Dark Reading Staff, Dark Reading

May 31, 2022

1 Min Read
Letters "SQL" over a background image of a laptop, to illustrate the programming language
Source: Maria Vonotna via Alamy

Shadowserver researchers scanning the Internet for exposed MySQL servers said they received more than 2.3 million IPv4- and 1.3 million IPv6 addresses in response to their connection requests on port 3306/TCP, indicating the connected servers were wide open to attack. 

Of the more than 3.6 million exposed MySQL servers, most were located in the US, with more than 740,000; followed by China, with more than 296,000; and Poland, with more than 207,000 accessible devices. 

"It is unlikely that you need to have your MySQL server allowing for external connections from the Internet (and thus a possible external attack surface)," Shadowserver said in a post about the MySQL findings. "If you do receive a report on your network/constituency, take action to filter out traffic to your MySQL instance and make sure to implement authentication on the server."

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Dark Reading Staff

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