“One of the more interesting hacks that Spider Labs has done is
called “Do You Want Fries with that Hack?” The penetration testing
team was conducting a test for a large restaurant chain that does
take-out orders over the Internet. The initial penetration testing
sweep revealed that the Web application used Java and Flash and was
not at risk from any common exploits or SQL Injection issues.Ryan Linn, senior security consultant with SpiderLabs, noted
however that the credit card processing was handled by a third
party via JavaScript and the testers were able to manipulate
payment info as it passed to the third party processing firm.“What was missing was JavaScript validation,” Linn said. “So we
adjusted the price of the food and we were able to get a meal
delivered for $.50 cents.”