This exploit relies on a flaw known as or Arbitrary File Read . It occurs when a web application accepts input from a user and passes it directly to a file system API without proper sanitization. Vulnerable Code Example (Node.js/Express) javascript

The file format is simple. It consists of sections (profiles) with an access key ID and a secret access key.

If the server’s input validation is flawed, it may:

The attacker identifies a file download or file display feature, such as: