What is template injection attack?

What is template injection attack?

Template Injection occurs when user input is embedded in a template in an unsafe manner. Consider a marketing application that sends bulk emails, and uses a Twig template to greet recipients by name.

What is client-side injection attack?

Local SQL injections may result in local malware injection, information theft, and much more; Cross-Application Scripting Attacks – Malicious intents fed from one Android application to another may result in buffer overflows that allow for malicious code execution; This may result in information theft.

What is client-side template injection?

Description: Client-side template injection Client-side template injection vulnerabilities arise when applications using a client-side template framework dynamically embed user input in web pages. When a web page is rendered, the framework will scan the page for template expressions, and execute any that it encounters.

How does template injection work?

A server-side template injection occurs when an attacker is able to use native template syntax to inject a malicious payload into a template, which is then executed server-side. Template engines are designed to generate web pages by combining fixed templates with volatile data.

How does server-side template injection work?

Server-side template injection is a vulnerability where the attacker injects malicious input into a template to execute commands on the server-side. This vulnerability occurs when invalid user input is embedded into the template engine which can generally lead to remote code execution (RCE).

Is HTML injection a client-side attack?

Client-Side injection attacks can be classified as JavaScript injection or XSS, HTML injection, and in many cases, even CSRF attacks. These attacks differ from server-side injections in that they target a website’s user base instead of actual endpoints or assets.

What is server side injection?

SSI injection (Server-side Include) is a server-side exploit that lets an attacker send code into an application to be executed later, locally, by the web server. With an SSI injection attack, the attacker can access sensitive information such as password files, and execute shell commands.

How do I use EJS template engine?

Get Started

1. Install. It’s easy to install EJS with NPM. $ npm install ejs.
2. Use. Pass EJS a template string and some data. BOOM, you’ve got some HTML.
3. CLI. Feed it a template file and a data file, and specify an output file. ejs ./
4. Browser support. Download a browser build from the latest release, and use it in a script tag.

What are server-side templates?

What Are Server Side Templates? Server Side Templates provide an easier method of managing the dynamic generation of HTML code than the mess we have described above. The big advantage is that you can generate dynamic HTML pages that, on the server side, read like static HTML.

How is template injection similar to CSTI and SSTI?

SSTI happens when a developer allows user input to define template code. This then allows an attacker to inject their own template expression. This is similar to CSTI but typically has a greater impact, as successful exploitation can often lead to Remote Code Execution (RCE).

Is it safe to use client side template injection?

In many kinds of application, such as those providing online banking functionality, client-side template injection should always be considered high risk. Client-side template frameworks often implement a sandbox aimed at hindering direct execution of arbitrary JavaScript from within a template expression.

Where does server side template injection ( SSTI ) occur?

This is now commonly known as Server Side Template injection (SSTI). SSTI occurs at the server level – in a server side language such as PHP, and templating engines such as Twig. SSTI happens when a developer allows user input to define template code. This then allows an attacker to inject their own template expression.

Where does template injection occur in a webpage?

Client side template injection usually occurs within the browser and HTML. It happens because a developer allows user input within a webpage, and allows them to define template expressions. This then allows an attacker to inject template expressions (which are simplified JavaScript) to exploit the web application.