Vendor Phpunit Phpunit Src Util Php Eval-stdin.php Cve

<?php // Original vulnerable code (simplified) eval('?>'.file_get_contents('php://input'));

The file path vendor/phpunit/phpunit/src/util/php/eval-stdin.php refers to a utility script included in PHPUnit, a widely used testing framework for PHP. In versions prior to 5.6.3, this file contained a security vulnerability (CVE-2017-9841) that allows Remote Code Execution (RCE).

The file src/Util/PHP/eval-stdin.php was intended for internal testing purposes. It contains the following code (simplified):

System administrators and developers must take immediate action to identify vulnerable PHPUnit installations, upgrade to patched versions, and reconfigure web servers to properly isolate public assets from backend libraries. Regular security audits and dependency management are essential to protect against this persistent threat. The continued exploitation of this vulnerability in malware campaigns shows that attackers are always scanning for these mistakes, making vigilance and proper configuration a necessity, not an option. vendor phpunit phpunit src util php eval-stdin.php cve

Attackers send a POST request to the vulnerable URI. If the server is misconfigured to allow public access to the /vendor directory, the code executes immediately. Vulnerability Details : CVE-2017-9841

This script reads raw input from php://stdin (standard input) and passes it directly to eval() . No authentication, authorization, or input sanitization is performed.

This is related to — a critical remote code execution (RCE) vulnerability in PHPUnit. Attackers send a POST request to the vulnerable URI

: Util/PHP/eval-stdin.php within the PHPUnit framework

The vulnerability resides in the file vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php . This script was designed to allow PHPUnit to execute code passed through standard input (stdin) for internal testing purposes.

: PHPUnit before 4.8.28 and 5.x before 5.6.3 Technical Analysis 4.8.28 and 5.x &lt

Check your composer.lock for PHPUnit versions:

| Attribute | Details | | -------------------- | ------------------------------------------------------------- | | | CVE-2017-9841 | | CVSS Score | 9.8 (Critical) | | Vulnerable Files | src/Util/PHP/eval-stdin.php | | Attack Vector | HTTP POST request to exposed PHPUnit file | | Affected Versions | PHPUnit < 4.8.28 and 5.x < 5.6.3 | | Patched Versions | 4.8.28, 5.6.3, 6.x, and all later releases | | Primary Cause | Insecure use of eval() on user-supplied input | | CWE | CWE-94: Improper Control of Generation of Code ('Code Injection') | | Exploitation | Trivial; public exploits available | | Mitigation | Upgrade PHPUnit, remove from production, block /vendor/ access |