Visit URLs like:
location ~ /vendor deny all; return 404;
Understanding the Vulnerability: PHPUnit RCE (CVE-2017-9841)
That single line reads anything from php://stdin and executes it as PHP code using eval() . When PHPUnit is run from the command line, this script is used internally to spawn subprocesses for isolated test execution. The problem arises when an attacker can . Because there are no authentication or permission checks, an HTTP request that includes arbitrary PHP code in the request body will cause the server to execute it with the privileges of the web server user.
If an attacker can access .../vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php , they can send a crafted POST request to that URL. The server will execute the payload in the request body, leading to . Consequences of an Attack
