Everything You Need to Know About CSRIDOM

What is CSRIDOM?

CSRIDOM, which stands for Cross-Site Request Forgery (CSRF) with DOM-based vulnerabilities, is a type of security vulnerability that occurs when a web application allows an attacker to perform actions on behalf of an authenticated user without their knowledge or consent. This vulnerability is typically exploited by tricking a user into clicking on a malicious link or visiting a specially crafted website.

How Does CSRIDOM Work?

CSRIDOM attacks take advantage of the fact that many web applications rely on client-side scripts, such as JavaScript, to dynamically update the content of a web page. By manipulating the DOM (Document Object Model) of a web page, an attacker can execute unauthorized actions on behalf of the user. This can include changing the user’s settings, transferring funds, or performing other sensitive operations.

Preventing CSRIDOM Attacks

There are several steps that developers can take to prevent CSRIDOM attacks. One of the most effective measures is to implement proper input validation and output encoding to ensure that user input is sanitized before being processed by the application. Additionally, developers should use anti-CSRF tokens to validate the origin of a request and prevent unauthorized actions.

Examples of CSRIDOM Vulnerabilities

One common example of a CSRIDOM vulnerability is a web application that allows users to update their profile information without proper validation. An attacker could create a malicious link that, when clicked by a logged-in user, changes their profile information without their knowledge. Another example is a banking application that allows users to transfer funds using client-side scripts, which could be exploited by an attacker to transfer funds to their own account.