Web Application Firewalls
Web Application Firewall (WAF) Overview
What are Web Application Firewalls (WAFs)?
Web Application Firewall (WAF) Features & Capabilities
WAFs protect web applications against threats such as:
Denial of service
WAFs generally present the following features:
Libraries of attack data based on known attacks to web applications
Monitoring, filtering and blocking of data and access to web applications
Automated attack detection, both identity-based (e.g. dynamic whitelisting, fingerprinting, risk scoring) and behavioral (e.g. risk scoring)
Advanced security techniques (e.g. deception/misdirection, virtual patch deployment, honeypot)
Zero-day attack prevention (related to the above)
A management interface with alert system
Reporting and analytics on threat and application usage
The cost of web application firewalls depends on deployment. There are three options:
A managed service or cloud-hosted WAF delivered as part of a subscription. This can be relatively low overhead as part of a larger subscription (e.g. part of a CDN). But it also may contain unneeded features.
A network-based appliance. This presents relatively high overhead but reduces latency because it is installed locally and close to the application.
A host-based WAF residing in the application’s code. This is rarer and may present less desirable computing costs and greater maintenance.
Web Application Firewalls Products
CloudFlare, from the company of the same name in San Francisco, provides DDoS security to business domains, as well as a content delivery network (CDN) and web application firewall (WAF).
F5 BIG-IP from Seattle-based F5 Networks is a SSL VPN solution and suite of products supporting a wide range of security and application performance needs. The suite includes BIG-IP Local Traffic Manager (LTM) traffic management and optimization, BIG-IP DNS, BIG-IP Access Policy Manager (APM)...
Oracle Dyn Web Application Security Platform extends beyond just typical Web Application Firewall (WAF) capabilities to offer Access Control, Bot Management, application DDoS protection and API security.
SecureSphere from Imperva in California is an enterprise application and file security suite, combining database and file security management and monitoring under its database and file security products with the SecureSphere Web Application Firewall, and provides total visibility through its...
Barracuda Web Application Firewall, from Barracuda Networks in Campbell, California, protects web applications from bots, DDoS attacks, and other advanced threats to enterprise apps.
Incapsula, a Content Delivery Network (CDN) serivce was acquired by Imperva in 2014, and supplies users with DDoS protection and web application firewall (WAF).
Amazon Web Services offers AWS WAF (web application firewall) to protect web applications from malicious behavior that might impede the applications functioning and performance, with customizable rules to prevent known harmful behaviors and an API for creating and deploying web security rules.
The StackPath (formerly Highwinds) Content Delivery Network provides a scalable DNS with load balancing, traffic management, DDoS protection and Web Application Firewall (WAF) to support and protect enterprise websites and applications.
Akamai offers their web application firewall and application security applications, including Kona Site Defender, a web application security platform designed to protect web and mobile assets from targeted web application attacks and DDoS attacks while improving performance.
FortiWeb is Fortinet's web application security system (or web application firewall, WAF) featuring advanced vulnerability management and threat detection and prevention, available in deployment as an appliance or virtual appliance, also as a hosted or a cloud-based virtual solution.
F5 Networks offers the Silverline Web Application Firewall (WAF) as a self-managed or managed option as a subscription service based on number of fully qualified domain names (FQDN) supported.
Positive Technologies headquartered in Framingham offers the PT Application Firewall (AF), a web application firewall (WAF) which uses advanced machine learning and correlative techniques to detecting and prevent zero-day attacks on enterprise apps.
Radware offers AppWall, a PCI compliant web application firewall (WAF) securing corporate networks and the cloud against web app attacks.
German company Rohde & Schwarz offers the R&S Web Application Firewall to protect enterprise apps against data leakage, disablement, identity theft and intrusion.
WAPPLES utilizes an intelligent detection engine to protect enterprise from advanced web-based attacks, including SQL injections, DDoS, and APTs. The vendor says that WAPPLES’ ease of deployment and low operational workload have been cited as main reasons for high customer satisfaction. WAPPLES is...
CenturyLink® Web Application Firewall (WAF) delivers substantial web application protection from attacks and helps prevent costly data breaches and downtime. WAF delivers dynamic ongoing website protection, allowing application transactions only from authorized users and protecting critical data...