9 articles tagged with ""cdn""
What if I told you that attackers can make your CDN cache and serve malicious responses to every single user — without ever touching your server? Web cache poisoning is that nightmare, and it's hiding in plain sight.
You set up CloudFront, it's blazing fast, everyone's happy. Then an attacker poisons your cache and your CDN faithfully delivers their malicious payload to every single user. Welcome to web cache poisoning.
You set up a CDN to make your app faster. Congratulations — you may have also set up a global attack delivery network. Let's talk about web cache poisoning before a security researcher does it for you.
Your S3 bucket in us-east-1 is making users in Singapore wait 800ms for a logo. CloudFront fixes that AND slashes your bandwidth bill. Here's everything I learned the hard way.
I once served 10,000 users in Tokyo from a single EC2 instance in us-east-1. Every image, every CSS file, every API response — round-tripping 14,000km across the Pacific. My users were not happy. CloudFront fixed it. Let me save you the embarrassment.
Imagine serving malware to thousands of users simultaneously — without touching your origin server once. Welcome to web cache poisoning, the attack that turns your CDN into a weapon.
Your images are fast. In Virginia. Users in Singapore are crying. Let me tell you how CloudFront fixed our e-commerce app and why cache invalidation is still the hardest problem in computer science.
CloudFront is the best CDN on the planet when configured right. And an expensive, confusing mess when configured wrong. I've done both. Let me save you from the expensive part.
Your users in Tokyo are waiting 800ms to load a logo that hasn't changed in 3 years. After architecting global e-commerce systems, I learned that caching isn't just 'nice to have' - it's the difference between a site that feels instant and one that feels like molasses!