Clickjacking with a frame buster script

Clickjacking involves tricking users into interacting with unintended elements by overlaying them with legitimate content. A frame buster script, also known as frame busting or frame breaking, is a security mechanism designed to prevent a webpage from being framed or embedded within an iframe on another site.

Кликджекинг:

Опис: Clickjacking, also known as UI redressing, is a web security vulnerability where an attacker tricks a user into clicking on something different from what the user perceives. This is typically achieved by placing invisible or transparent elements over seemingly legitimate clickable elements on a webpage.

Attack Scenario: Attackers may overlay an invisible iframe over a targeted website, tricking users into interacting with elements within the iframe without their knowledge.

Frame Buster Script:

Опис: A frame buster script, also known as frame-breaking script or framekiller script, is a piece of JavaScript code implemented on a webpage to prevent the page from being framed or embedded within an iframe. Its purpose is to defend against clickjacking by breaking out of any frames that attempt to encapsulate the page.

Реалізація: The frame buster script typically checks whether the page is the top-level window and, if not, redirects the top-level window to the original page, preventing the page from being displayed within a frame.

Clickjacking with Frame Buster Script:

Attack Description:

An attacker identifies a target website that uses a frame buster script to prevent framing.

The attacker employs various techniques to circumvent or disable the frame buster script, allowing the target site to be framed.

The attacker overlays the framed target site with invisible elements, tricking users into interacting with these elements while interacting with the target site underneath.

Simultaneously, the attacker may inject malicious scripts into the target site, exploiting DOM-Based XSS vulnerabilities.

Example Scenario:

A popular social media site implements a frame buster script to prevent clickjacking.

An attacker identifies and exploits a vulnerability that allows them to disable or bypass the frame buster script.

The attacker then overlays the social media site with invisible elements, tricking users into performing unintended actions.

Malicious scripts are injected through DOM-Based XSS, allowing the attacker to steal user credentials or perform other malicious activities.