Once an attacker can run one command, they can download malware, steal database credentials, or use the server to launch attacks on other websites. Why "Index Of" Results are Dangerous
rm vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php
from your production web root.
id: CVE-2017-9841 info: name: PHPUnit eval-stdin.php RCE requests: - method: POST path: - "/vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php" body: "<?php echo md5('test'); ?>" matchers: - type: word words: - "098f6bcd4621d373cade4e832627b4f6"
curl -X POST "http://yourdomain.com/vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php" \ -d "<?php echo 'safe_test'; ?>" \ -H "Content-Type: application/x-www-form-urlencoded" index of vendor phpunit phpunit src util php evalstdinphp
The Snyk CVSS score for CVE‑2017‑9841 is , with the attack vector listed as “Network,” attack complexity “Low,” and privileges required “None”. In other words, an unauthenticated remote attacker can take over your server with a single crafted POST request.
Order deny,allow Deny from all Use code with caution. 3. Move the Webroot Once an attacker can run one command, they
The source code of the vulnerable eval-stdin.php file is remarkably simple. It reads input directly from the HTTP request body and passes it to PHP's eval() function: ' . file_get_contents('php://input')); Use code with caution.
The use of eval() function in PHP poses a significant security risk if the input is not properly sanitized. The eval() function executes a string as PHP code, which means any PHP code can be executed. If an attacker can inject malicious PHP code into this file, they could potentially execute arbitrary code on the server. In other words, an unauthenticated remote attacker can
The string index of vendor phpunit phpunit src util php evalstdinphp is not random. It represents a directory traversal or search pattern used by both security researchers and malicious actors to locate exposed PHPUnit files. Let’s decode it: