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
By taking these steps, you can protect your PHP applications and systems from the potential risks associated with CVE-2022-0847. vendor phpunit phpunit src util php eval-stdin.php cve
In affected versions, the file contains logic designed to read from standard input (STDIN) and evaluate the PHP code received. The simplified logic looked roughly like this: Attackers send a POST request to the vulnerable URI
: This function executes any string passed to it as PHP code. In affected versions, the file contains logic designed
The primary condition required for this vulnerability to be exploitable is that the vendor directory must be web-accessible.
testing framework when it is accidentally deployed to production environments with its directory publicly accessible. Vulnerable Function : The file eval-stdin.php contained the following code: eval('?> '. file_get_contents('php://input')); : It reads raw data from the HTTP POST body ( php://input ) and passes it directly into the function without any authentication or sanitization. : An attacker can execute arbitrary PHP code (e.g., system("id");
location ~ /vendor deny all; return 404;