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AWS WAF

AWS WAF (Web Application Firewall) is an online application firewall that helps protect your web applications or APIs against typical web exploits and bots that can cause availability issues, security compromises, or resource consumption issues.

Why AWS WAF?

 

 If your web apps or APIs are at risk of being hacked or compromised by bots, AWS WAF (Web Application Firewall) is a virtual firewall that can assist defend you from these threats. AWS WAF gives you comprehensive control over traffic accessing your applications by allowing you to set security rules that restrict bot traffic and stop classic attack types like SQL injection and cross-site scripting. Additionally, you have the option of creating rules that only allow certain types of traffic. Preconfigured rules for AWS WAF, administered by AWS or AWS cloud computing marketplace sellers, can be used to deal with security problems such as the OWASP Top 10 security risks and automated bots that utilize excessive resources, skew metrics, or cause downtime in AWS cloud systems. These recommendations are frequently revised to reflect any changes in the situation. Additionally, AWS WAF has a security rule system that allows you to automate the generation, deployment, and maintenance of safety rules. Your CDN solution, the Application Load Balancer for your web servers or origin servers on EC2, Amazon API Gateway for your REST APIs, and AWS AppSync for your GraphQL applications may all use AWS WAF on Amazon CloudFront. Amazon Web Services offers a CDN solution called Amazon CloudFront. Your application’s daily web request volume and the number of rules installed define how much AWS WAF costs, so there are no hidden fees.

How it Works

 

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Features

  • Filtering of web traffic
AWS WAF’s web traffic filtering criteria include custom URIs and IP addresses. HTTP headers and body and HTTP headers and body are among the other criteria. This functionality serves as a second tier of defence against web attacks that try to exploit weaknesses in bespoke or third-party web applications. The AWS WAF also simplifies the process of enforcing rules to guard against common web vulnerabilities like SQL injection and cross-site scripting. It is possible to apply rules to multiple websites at the same time using the AWS WAF. Rather of having to build new rules for every web application, you can construct a single set of security rules that can be applied to all of the websites and web applications in the environment.
  • AWS WAF Bot Control
Managed rule groups in AWS WAF allow for visibility and control over bot activity that may consume excessive resources, distort data or create disruption. A few mouse clicks allow you to block or prevent common bots, such as crawler and scraper programmes or status monitors and search engine crawlers, from operating on your website. The Bot Control managed rule group, when used with other Managed Rules for WAF or custom WAF rules, can help secure your applications even further.
  • Preventing account takeover fraud is important.
In the AWS WAF Fraud Control service, a financial fraud prevention managed rule team assesses your application’s login page for login attempts and user accounts using compromising credentials. By working with the government, it is possible to avoid credential stuffing attacks, conventional warfare login attempts, and any other suspicious login activity. With the optional JavaScript and iOS/Android SDKs, you may collect more information about user devices that attempt to connect into your application and use it to further protect your application against automated login attempts by bots. Controlled Rules for AWS DevOps includes a feature called Account Takeover Prevention, which may be used in combination with Bot Control to prevent bots from seizing over your account.
  • Feature-length API
AWS WAF may be completely controlled via APIs. An organization’s competitive advantage comes from having the ability to standardise and integrate rules into the development and design process. For instance, a developer who is intimately familiar with the web application can create a security rule that would be applied to it before deployment. To prevent the need for complex handoffs between application and security teams to guarantee that rules are up to date, incorporate security into your development process. CloudFormation sample templates allow you to describe all of the security rules you want to implement for your web applications provided over Amazon CloudFront, which can then be automatically generated and provisioned by AWS.
  • Real-time visibility is essential.
Real-time data and raw requests can be collected using AWS WAF, including data about IP addresses and geographical areas as well as info about URIs, User-Agent, and Referrers. AWS WAF is linked with Amazon CloudWatch, making it possible to generate custom alarms when limits are exceeded or specific attacks occur, making it simple to observe and respond to attacks. As a result of this information, new rules can be developed that will better protect apps because of this information.
  • Integration with Amazon Web Services Firewall Manager
Using a single AWS account, you can centrally manage multiple AWS WAF deployments with AWS Firewall Manager. In addition, new resources can be checked to see if they adhere to a defined set of security criteria. In the event of a policy violation on your network, Firewall Manager alerts your security team so they can respond promptly and take appropriate action.

Benefits

  • Protection against web-based threats that are flexible
In less than a minute, AWS WAF rules may be propagated and updated across your whole environment, allowing you to quickly address security issues as they arise. Web application firewalls (WAFs) have hundreds of rules that can examine any part of a web request while imposing the least amount of latency on incoming data. AWS WAF protects web applications from attack by filtering traffic according to rules you specify. Everything from Proxy servers to HTTP protocols to the HTTP body and URI strings can be included in web request filtering. Typical attack patterns like SQL injection and cross-site scripting can no longer exploit your system as a result of this.
  • Managed rules let you save time.
When you use Managed Rules for AWS WAF, your web application or APIs can be protected from typical threats within minutes of being deployed. OWASP’s Top 10 Security Risks, Content Management System (CMS) Threats, and the development of Common Vulnerabilities and Exposures (CVEs) are just a few of the rule types you can choose from when building your rules (CVE). It’s also possible to spend more time developing apps instead of maintaining them thanks to the automatic updates of controlled rules.
  • Enhancement in the amount of online traffic
With the near-real-time visibility provided by AWS WAF, Amazon CloudWatch can produce new rules or warnings based on your web traffic. Individual rules or the entire inbound traffic stream can be monitored with precise control over the metrics that are emitted. The whole header data of each evaluated web request is also captured for use in security automation, analytics, and audits with thorough logging.
  • Implementation and maintenance are made simple.
If you’re using Amazon CloudFront as part of a CDN solution, the Application Load Balancer, Amazon API Gateway (for REST) or AWS AppSync (for GraphQL) as part of a cloud computing architecture, you can use AWS WAF to protect and secure your apps. The use of a reverse proxy, additional software or DNS configuration or SSL/TLS certificate management is not necessary. Neither is a reverse proxy required. By integrating AWS Firewall Manager, you can define and administer your rules from a single location while also reusing them across all web apps you need to protect.
  • Easy-to-use bot monitoring and control, including blocking and rate-limiting
Amazon Web Services’ AWS WAF Bot Control service can help you monitor and control bot traffic that is aimed towards your apps and services. Typical bots like status monitors and search engines can be monitored using the AWS WAF panel. Insights regarding bot traffic, such as its category, identity, and other pertinent features, can be obtained precisely and in real-time. Setting a rate limit on traffic can also prohibit or limit traffic from common bots like scrapers, scanners, and crawlers. Additionally, the AWS Firewall Manager service can be used to implement the Bot Control controlled rule group across several clients in your AWS Organization.
  • Applications should be constructed with security in mind from the start.
The AWS WAF API or the AWS Management Console can be used to configure all of the AWS WAF’s features. This gives your DevOps team the ability to implement rules that are specific to the applications they are building, thereby improving online security for your firm as a whole. As an additional benefit, this allows you to incorporate web security into the growth process chain at numerous points, from developers writing code to DevOps engineers deploying software to security administrators who enforce a set of rules across an entire organisation. This is a significant advantage.
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Use Cases

  • With a firewall at the network’s edge, unwanted bot traffic can be blocked.
At the network’s edge, AWS WAF and CloudFront’s Bot Control collaborate to limit the traffic of malicious bots. By employing Bot Control, you may reduce the operating and infrastructure costs associated with scrapers, scanners, and crawlers. Another benefit of Bot Control is the removal of bot traffic that may misrepresent traffic and conversion numbers.
  • Ensure the safety of your proprietary information.
Crawlers and scrapers are tools that websites utilize to index their content, extract files from their APIs, or otherwise make unlawful use of these resources. Controlling individual bots or a group of bots, such as search engine crawlers and scrapers, can be done via Bot Control. Search engine web crawlers can’t be prevented since Bot Control can’t be turned off by default.
  • Content that doesn’t appeal to bots should be created in response.
With WAF features like Bot Control and unique answers, you can tailor application operations for bot traffic and make them more user friendly. In terms of SEO, “scraping” bots may bring visitors to your site, but they may also cause your real-time pricing database to fail. To ensure that bots aren’t sent to out-of-date price pages, AWS WAF can direct them to a cached endpoint instead.

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Pricing

This includes the amount of web access control lists (web Basic input / output system), the number of rules you apply to each one, as well as the volume of web requests. It’s not necessary to make any commitments right now. AWS WAF is not included in the prices of Amazon CloudFront, Application Load Balancer (ALB), Amazon API Gateway, and AWS AppSync. If you create several web ACLs or rules for multiple web ACLs, you will be paid separately. Depending on how many web requests the web ACL handles, more fees will be incurred. The pricing structure for AWS services is the same across all regions. Each hour of use is charged at a prorated monthly rate. Subscribing to a controlled rule group offered by an AWS Marketplace vendor will come at an additional cost. AWS WAF fees aren’t the only costs to consider.
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