-page-....-2f-2f....-2f-2f....-2f-2fetc-2fpasswd [upd]

file, a critical system file in Unix-based systems that contains a list of all local users. Here is the breakdown of the components:

Instead of trying to find "bad" characters, only allow expected characters. For a page parameter, this usually means allowing only alphanumeric characters and rejecting anything containing dots ( ) or slashes ( Canonicalization Check: -page-....-2F-2F....-2F-2F....-2F-2Fetc-2Fpasswd

Protecting against directory traversal is a fundamental part of Web Application Security . Developers can use several strategies: file, a critical system file in Unix-based systems