via web server configuration.

In the summer of 2017, Maya was a security engineer for a mid-sized fintech startup. She had just finished her morning coffee when the SIEM dashboard erupted—red spikes across three staging servers.

The server has just executed the id command. The attacker now has Remote Code Execution (RCE).

Add a location block to deny access to the vendor directory.

Check your servers today. Run the find command. That ghost might be lurking in your dependencies, waiting for a POST request.

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vendor phpunit phpunit src util php eval-stdin.php exploit

Sachin Raut

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