rkh/almost-rack-protection

Almost-rack-protection is a security add-on for Ruby web applications. It acts as a shield that sits between your app and incoming traffic, blocking the most common attacks that opportunistic hackers use to break into websites. The idea is to give you baseline protection without you having to become a security expert. You add it to a Ruby project with just a couple of lines of code. Once it is in place, it automatically filters out malicious requests before they ever reach your application. It works with any app built on Rack, which is the underlying foundation that most Ruby web frameworks share. That means it plays nicely with Ruby on Rails and similar tools, slotting into the existing pipeline without much fuss. The list of things it guards against is exhaustive and ranges from serious threats like SQL injection and cross-site scripting to more exotic or dated problems like the Y2K bug, the Windows Metafile vulnerability, and shoulder surfing. It covers the major categories of web vulnerabilities that security professionals worry about, along with some surprising extras like buffer overflows and arbitrary code execution. It is essentially a broad-spectrum firewall tuned for the specific ways web apps get attacked. Someone building a side project, a prototype, or a small commercial app would use this to get reasonable security without spending days reading up on individual threats. The "almost" in the name suggests it is not a silver bullet for an enterprise with strict compliance needs, but for a solo founder or small team shipping a product quickly, it covers a remarkable amount of ground. You get protection against most common CVEs and attack vectors without adding heavy complexity to your codebase.