Both issues have been resolved by adding custom rules. We’ve encountered issues with handling external APIs webhooks and the WYSIWYG editor. There’s no option to buy just the WAF, but the whole CloudFlare Pro package, which is the cheapest one containing WAF, costs 20 $ per month.Īdding CloudFlare to an existing project seems to be very easy at first glance, but be ready for some unexpected issues. The CloudFlare WAF is quite a cheap solution. The Simulate feature is very useful when adding a new Custom Firewall Rule, as it allows you to preview the new rule results to reduce false positive marks. It helps you tailor your security configurations. This solution offers quite an easy to use dashboard to visualize and analyze threats with Firewall Analytics. To be more specific, the CloudFlare WAF contains the following rulesets: Also, a certain amount of customization is possible. Source: ĬloudFlare uses a crowd sourced engine from all of its clients to learn about the attacks, and help create rules automatically for you. CloudFlare needs to have control over your DNS records, so if you are using other tools like AWS Route53 for DNS, using CloudFlare is not an option. This service setup requires using Cloudflare DNS, there’s no other need to change existing infrastructure or sacrifice performance. Currently, it’s offering a wide range of products and the Web Application Firewall is one of them.Ĭloudflare WAF offers easy integration with your current infrastructure, with a few limitations. Cloudflare WAFĬloudflare is a company that gathered a lot of traction a few years ago with the DDoS Protection product. Then, over time, you can implement it in each microservice with a respect to the given microservice team roadmap. Using a Firewall as a first line of defence that verifies all HTTP traffic, in case of detecting the same security issue in many microservices, you can implement the mitigation strategy directly on the Firewall fastly by a small team. Web Application Firewall can be also very useful in the microservices architecture. Because of that, the real-world answer is: “yes – you need a Web Application Firewall”. The answer can be “no”.Īs you might suspect, it’s impossible to meet the above circumstances in the real world. In that case, you are sure that there are no security gaps in the application and the infrastructure now and in the future, and there are no and will be no reported Common Vulnerabilities and Exposures for your framework and libraries in the future. Suppose your application is written in a truly secure way. Let’s answer the question from the section title: “Do you need a Web Application Firewall?”. The answer can be: “It depends”. Of course, an Web Application Firewall is not a silver bullet solution and it can’t mitigate all attack vectors, but definitely it can be very helpful. A very simple configuration can protect you against File inclusion, Cross Site Scripting, SQL injections and much more. Understanding HTTP in conjunction with other technologies like the Deep Packet Inspection means that a well-configured Web Application Firewall can help you protect your application against the most common web application attacks including the OWASP Top Ten attacks. The key differentiator of an Application Firewall is the fact that it works on OSI layer 7, which means it can understand certain applications protocols like FTP, DNS and HTTP – which is most useful from a web application perspective. In this article, we will focus on the third generation, the Application Firewall. They are often called first and second generation firewalls.Īs the Network Firewall can be still very useful, it’s not everything that Firewall technology has to offer. This kinds of Firewall offer OSI Layer 3 and layer 4 protection, which consists of checking the traffic source and destination IP addresses, protocol, source and destination ports. When we hear the term Firewall, we often think about the Standard/Network Firewall.
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