| Context | Example Scenario | |---------|------------------| | | https://example.com/view?file=-template-..-2F..-2F..-2F..-2Froot-2Fpasswd | | HTTP POST/GET parameters | Template engine parameter accepting a relative include path | | Server access logs | As a requested resource with path traversal | | File upload filenames | Malicious filename attempting to break out of upload directory | | Cookie values | Encoded payload in a session variable used to load templates |
(or Directory Traversal) vulnerabilities in web applications. This specific format is designed to bypass security filters by using "dot-dot-slash" sequences that are URL-encoded ) and potentially prefixed with a keyword like -template- to trick the application's routing or template engine. 1. Anatomy of the Attack -template-..-2F..-2F..-2F..-2Froot-2F
First, let’s decode the -2F parts:
: By repeating ..-2F multiple times, the attacker is attempting to "climb" out of the intended web folder and reach the server's root directory . Anatomy of the Attack First, let’s decode the
