$base = '/var/www/templates/'; $path = realpath($base . $_GET['file']); if ($path === false || strpos($path, $base) !== 0) die('Access denied');
: The attacker can use these credentials to impersonate the user. -template-..-2F..-2F..-2F..-2Froot-2F.aws-2Fcredentials
If the application fails to validate the userInput , an attacker can inject specific character sequences to navigate outside the intended directory. The Role of Relative Paths $base = '/var/www/templates/'; $path = realpath($base
: This is the URL-encoded version of ../ . In many web environments, servers automatically decode these characters. Repeated four times ( ../../../../ ), it instructs the system to move four levels up from the current working directory, eventually reaching the system's root directory . $base = '/var/www/templates/'
[dev] aws_access_key_id = YOUR_DEV_ACCESS_KEY_ID aws_secret_access_key = YOUR_DEV_SECRET_ACCESS_KEY