: This file is a common target on Linux/Unix systems because it is globally readable. It contains a list of system users, which helps an attacker map out the server for further exploitation.
A robust WAF can detect and block signature patterns containing traversal sequences ( ../ ) and obfuscated variations (like ....-2F or double URL encoding %252F ) before the traffic ever reaches the underlying application logic. -page-....-2F-2F....-2F-2F....-2F-2Fetc-2Fpasswd
: This string is designed to trick a web application into exposing sensitive system files. : This file is a common target on