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

If the evaluation file eval-stdin.php is accessible on a production web server, it's not just a vulnerability—it's an open door to a complete server takeover.

Understanding CVE-2017-9841: The Persistent Threat of PHPUnit's eval-stdin.php

server listen 80; server_name your-app.com; root /var/www/my-app/public; # Note the /public folder index index.php; ... Use code with caution. 4. Block Access to vendor vendor phpunit phpunit src util php eval-stdin.php cve

Understanding the Critical PHPUnit Remote Code Execution Flaw

A proof-of-concept exploit has been publicly disclosed, demonstrating how an attacker can execute arbitrary code on a vulnerable system. The exploit involves providing malicious input to the eval-stdin.php script, which is then executed by the vulnerable PHPUnit instance. If the evaluation file eval-stdin

CVE-2017-9841 CVSS Score: 9.8 (Critical) Affected Versions: PHPUnit 4.x, 5.x, 6.x (specific subversions before the patch) Vector: Network Complexity: Low Privileges Required: None User Interaction: None

: The stream wrapper php://input allows an application to read raw data directly from the body of an HTTP POST request. CVE-2017-9841 CVSS Score: 9

The patch for CVE-2022-0847 involves updating the eval-stdin.php script to properly sanitize user input. The patched version of the script can be found in PHPUnit version 9.5.0.

Despite being an older vulnerability, it remains a frequent target for automated scanners and botnets like because many legacy systems still have exposed /vendor directories.