Business logic data validation errors occur due to a lack of server-side checks, especially in a sequence of events such as shopping cart checkouts. If design flaws, such as thread issues, are present, those flaws may allow an attacker to modify or change their shopping cart contents or prices, prior to purchasing them, to lower the price paid.
Testing business logic data validation
Getting ready
Using the OWASP WebGoat application and Burp, we will exploit a business logic design flaw, to purchase many large ticket items for a very cheap price.
How to do it...
- Ensure...
