Drupal H5P Module 2.0.0 Zip Slip Traversal

------------------------------------------------------------------Drupal H5P Module <= 2.0.0 (isValidPackage) Zip Slip Vulnerability------------------------------------------------------------------[-] Software Link:https://www.drupal.org/project/h5p[-] Affected Versions:Version 2.0.0-alpha2 and prior versions.Version 7.x-1.50 and prior versions.[-] Vulnerability Description:The vulnerability is located within the H5PValidator::isValidPackage() method. This implements the following check in order to skip any file or folder starting with a dot or underscore within the uploaded h5p archive:891.  $fileName = $zip->statIndex($i)['name'];892.893.  if (preg_match('/(^[\._]|\/[\._])/', $fileName) !== 0) {894.    continue; // Skip any file or folder starting with a . or _894.  }This regex check should be enough to prevent path traversal attacks through zipped filenames (Zip Slip attacks), because it checks for the string “/.” within the filename, thus preventing directory traversal attacks. However, the vulnerability exists if Drupal is running on a Windows server, because in this case the attacker can provide a malicious h5p archive containing a filename with path traversal sequences like “..\..\..”, which would bypass the above regex check. This can be exploited to write (or overwrite) semi-arbitrary files in the file system via directory traversal sequences, potentially leading to Stored Cross-Site Scripting (XSS) and other kind of attacks.[-] Solution:No official solution is currently available.[-] Disclosure Timeline:[22/11/2021] - Vendor notified[28/02/2022] - Vendor proposed a possible patch[28/02/2022] - Vendor notified about the ineffective patch, provided a fix suggestion[01/03/2022] - Vendor fixed the previous patch[30/03/2022] - Asked update about the public disclosure and release of a patch, no response[22/11/2022] - After one year still no official solution available[03/12/2022] - Public disclosure[-] CVE Reference:The Common Vulnerabilities and Exposures project (cve.mitre.org)has not assigned a CVE identifier for this vulnerability.[-] Credits:Vulnerability discovered by Egidio Romano.[-] Other References:https://security.drupal.org/node/175968[-] Original Advisory:http://karmainsecurity.com/KIS-2022-06