An exposed directory structure on a public web server is a major security risk. The search term is a specific Google dork used by attackers. They use it to find websites exposing a critical Remote Code Execution (RCE) vulnerability in the PHPUnit testing framework, tracked as CVE-2017-9841 .
eval(STDIN);
Thousands of servers have been compromised this way, leading to:
<Directory "/path/to/project/vendor"> Require all denied </Directory> index of vendor phpunit phpunit src util php eval-stdin.php
The server executes id and returns the output.
The eval-stdin.php file reads raw POST data from the request and uses PHP's eval() function to execute it if the request begins with
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. An exposed directory structure on a public web
The "Index of" part of the query targets web servers that have directory listing
This specific string, index of /vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php , is most commonly associated with vulnerability scanning cybersecurity research rather than standard software development. What this represents
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9 Year-Old PHP Vulnerability Keeps Swinging As ... - VulnCheck
When malicious actors use automated dorking tools to search for index of /vendor/phpunit/... , they are looking for misconfigured web servers that expose the vendor directory.
When navigating through the directories of a PHP project, you might stumble upon an "Index of" error or listing, particularly when accessing a URL or path directly. This often occurs when a server doesn't have directory indexing enabled or when there's a misconfiguration. However, the specific path vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php raises questions about its purpose within the PHPUnit framework. eval(STDIN); Thousands of servers have been compromised this
server listen 80; server_name example.com; # Point to public, NOT the root folder containing /vendor root /var/www/my-app/public; index index.php; Use code with caution. 3. Restrict Access via .htaccess (Apache)
[Google Dorking / Scanning] │ ▼ [Detect "Index of /vendor/..."] │ ▼ [Send Malicious HTTP POST Request] │ ▼ [Remote Code Execution (RCE)] │ ▼ [Server Compromise / Web Shell Upload] 1. Information Gathering (Dorking)