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

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Here are the details regarding this issue:

If a project includes PHPUnit as a dependency (stored in the vendor directory) and that directory is publicly accessible via a web server, an attacker can send a specially crafted HTTP request to execute arbitrary PHP code on the server. vendor phpunit phpunit src util php eval-stdin.php cve

The combination of php://input (which reads raw data from an HTTP POST request body) and the dangerous eval() function created an unintended code execution pipeline. When an external attacker sends an HTTP POST request directly to the URI where this file resides, the server parses the request body as executable PHP code. The Attack Vector

This is only exploitable if the /vendor directory is accessible from the web (a common misconfiguration in production environments). Affected Versions Web Attack: PHPUnit RCE CVE-2017-9841 - Broadcom Inc.

This vulnerability typically manifests in production environments when development tools are incorrectly exposed to the internet. Common causes include: CVE-2017-9841 Detail - NVD When an external attacker sends an HTTP POST

The keyword refers to one of the most persistent and scanned-for security flaws in the PHP ecosystem: CVE-2017-9841 .

Eliminating this risk requires immediate action. Follow these steps to secure your web applications:

In this patched version, the code adds a simple input validation using a regular expression. This ensures that only a limited set of characters is allowed in the input code, significantly reducing the risk of code injection. vendor phpunit phpunit src util php eval-stdin.php cve

The PHPUnit team has been proactive in addressing this vulnerability, releasing patches and advisories to help users protect their applications. The team has also been working closely with the PHP community to ensure that the vulnerability is properly mitigated.

PHPUnit introduced the eval-stdin.php file to handle test processing internally. The vulnerability stems from a single line of code in the file that was designed to read a stream and evaluate it as code: eval('?>' . file_get_contents('php://input')); Use code with caution. How the Exploit Works

CVE-2017-9841 is a Remote Code Execution vulnerability in PHPUnit, the industry-standard testing framework for PHP. The flaw affects: PHPUnit versions before 4.8.28 PHPUnit versions 5.x before 5.6.3

: It passes that raw input directly into the eval() function, which interprets the string as active PHP code.