/view.php/filter/read=convert.base64%20encode/resource=/root/.aws/credentials
As a security expert, I've encountered numerous URLs that seem to be a jumbled mess of characters. One such URL that caught my attention is: /view-php-3A-2F-2Ffilter-2Fread-3Dconvert.base64%20encode-2Fresource-3D-2Froot-2F.aws-2Fcredentials . At first glance, it appears to be a nonsensical string, but, as we'll explore in this article, it might be more than just a random collection of characters. To protect your application and infrastructure from this
To protect your application and infrastructure from this specific attack pattern, follow these best practices: It allows developers to apply "filters" to a
When this string is passed to a PHP function that accepts a file path (like file_get_contents() , include() , require() , or fopen() ), PHP will read the file /root/.aws/credentials , pass its contents through the base64‑encode filter, and return the base64‑encoded string. The attacker can then decode it back to plain text, exposing secret AWS access keys and secret keys. ?php $page = $_GET['page']
To understand the significance of this URL, let's break it down into its constituent parts:
: This is a PHP stream wrapper. It allows developers to apply "filters" to a stream (like a file) while it is being opened.
<?php $page = $_GET['page']; include($page . '.php'); ?>