In this Hasty Treat, Scott and Wes talk about front end security and what to do in order to avoid hacking.
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Show Notes
2:53 - SSL
- Encrypted transfer of information
- Digitally binds a cryptographic key to an organization’s details
- Web-cam, geolocation, etc.
6:15 - innerHTML
- React’s dangerouslySetInnerHTML
- Name intentionally chosen to be frightening
- Allows you to write HTML to the DOM
- Data should be sanitized before used in prop
- Removes unexpected data from string
- Used to prevent cross site scripting attacks
10:25 - Don’t trust the client
- The client can be manipulated to send any info to your server
- E-commerce example — don’t take the price total from the front end to make the charge, DB call and calculate on the server
- Validate form inputs via HTML 5 field validation/check data types on the server
- Don’t allow your users to send an object when it should just be a string
- Get this for free with GraphQL via types
13:41 - PCI Compliance
- Protect card holder data
- Encrypt transmission of card data
- Restrict access to card holder data
- Restrict physical access
16:44 - Tips
- Don’t put a name on sensitive fields if you are using JS
- HTTP only cookies
- Local Storage tokens
- XSS
Links
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