Server Side Template Injection

Web App Pentesting - Server Side Template Injection

What is it?

Before we understand the attack, first lets understand what template engine is ( eh? colloquially lets understand how web template system would work? and lets not re-write what's already written, here is a link to Wikipedia - https://en.wikipedia.org/wiki/Web_template_system ). So web template system consists of three main components. 

1. Template Engine
2. Content Resource (DB etc)
3. Template Resource

Lets select Django Template Engine (TE), it has two tasks to perform

1. Parsing the template engine language 
2. And rendering it accordingly on a page

Django (again that's the main TE) we are talking about here.

Django has two TEs 

1. Django Templates
2. Jinja2

...to be continued.

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