Index Of Vendor Phpunit Phpunit Src Util Php Evalstdinphp
Because CVE-2017-9841 is heavily targeted by automated botnets, an exposed file has likely already been targeted. You should conduct a thorough forensic review of your server:
The phrase index of refers to directory browsing (or directory listing). When a web server receives a request for a directory path rather than a specific file (like index.html ), and no default index file exists, it may automatically generate a page listing all files and folders within that directory. index of vendor phpunit phpunit src util php evalstdinphp
curl -X POST --data "<?php system('id'); ?>" http://example.com/vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php curl -X POST --data "<
: The standard directory where Composer installs third-party packages, libraries, and frameworks. This folder should never be web-accessible. curl -X POST --data "<
If the system is vulnerable, the server will execute the whoami command and return the name of the user running the web service (e.g., www-data ), proving that the attacker has achieved Remote Code Execution. Remediation and Mitigation Steps
Understanding the Security Risks of index of /vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php
The vulnerability was discovered in 2016, and the fix has been available ever since. Yet, misconfigured servers continue to expose this file, and attackers continue to exploit it. The only way to stay safe is to treat the vendor/ directory as untouchable by the web server, to patch PHPUnit to a safe version, and to treat every index of listing as an urgent security incident.