-template-..-2f..-2f..-2f..-2froot-2f.aws-2fcredentials -

Let's break down the string into its components.

The Raw String: -template-..-2F..-2F..-2F..-2Froot-2F.aws-2Fcredentials

Step 1: Identify the URL Encoding The substring -2F is the dead giveaway. In URL encoding, the forward slash (/) is represented as %2F. However, in this payload, the percent sign (%) has been replaced with a hyphen (-), likely to evade basic filters or due to double encoding.

Step 2: Translate the String Replace every instance of -2F with /:

-template-.. / .. / .. / .. / root / .aws / credentials

(Spaces added for clarity; actual payload has no spaces). -template-..-2F..-2F..-2F..-2Froot-2F.aws-2Fcredentials

Step 3: Understand the "Template" Prefix The -template- prefix suggests an application vulnerability where user input is inserted into a file path template. For example: /var/www/html/templates/user/-template-[USER_INPUT]-here.html

Step 4: The Directory Traversal Sequence The sequence ../../../../ is the classic path traversal. Each .. means "move up one directory level." Four of them bring you from the web application’s working directory all the way up to the root filesystem (/).

Step 5: The Final Path After traversing to root, the payload appends root/.aws/credentials. The full resulting path becomes:

/root/.aws/credentials

Here is how an attacker would use this string in a real HTTP request. Let's break down the string into its components

Vulnerable Code Example (Python Flask):

from flask import Flask, request
import os
app = Flask(name)
@app.route('/render')
def render_template():
template_name = request.args.get('template')
# DANGEROUS: No path sanitization
file_path = os.path.join('/var/www/templates/', template_name)
with open(file_path, 'r') as f:
return f.read()

Attacker's Request:

GET /render?template=-template-..%2F..%2F..%2F..%2Froot%2F.aws%2Fcredentials HTTP/1.1
Host: vulnerable-target.com

What happens:

The path you've provided seems to use URL encoding or a similar obfuscation technique. Here's a breakdown:

Decoding ..-2F to /, and considering the repetition:

However, considering standard practices and common paths:

This file is used by the AWS Command Line Interface (CLI) and AWS SDKs to store long-term access keys for the root user or an IAM user. Step 2: Translate the String Replace every instance

A typical file looks like this:

[default]
aws_access_key_id = AKIAIOSFODNN7EXAMPLE
aws_secret_access_key = wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY

As a security professional, you do not need to "use" this payload; you need to block it.