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Difference between revisions of "Web Application Firewall"

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m (Other well-known commercial tools of this type)
(Other well-known commercial tools of this type)
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* [http://www.a10networks.com/products/web_application_firewall.php A10 Networks - Web Application Firewall]
 
* [http://www.a10networks.com/products/web_application_firewall.php A10 Networks - Web Application Firewall]
 
* [http://www.akamai.com/html/solutions/waf.html Akamai Technologies - Web Application Firewall (WAF)]
 
* [http://www.akamai.com/html/solutions/waf.html Akamai Technologies - Web Application Firewall (WAF)]
* [http://www.denyall.com/ DenyAll - Web Application Firewall (WAF)]
 
 
* [http://www.applicure.com Applicure - DotDefender]
 
* [http://www.applicure.com Applicure - DotDefender]
 
* [http://www.port80software.com/products/serverdefendervp/ Port80 Software - ServerDefender VP]
 
* [http://www.port80software.com/products/serverdefendervp/ Port80 Software - ServerDefender VP]
* [http://www.radware.com/Solutions/Enterprise/Security/WebApplicationFirewall.aspx Radware AppWall]
 
 
* [http://www.armorlogic.com/ Armorlogic - Profense]
 
* [http://www.armorlogic.com/ Armorlogic - Profense]
 
* [http://www.barracudanetworks.com/ns/products/web-application-controller-overview.php Barracuda Networks - Application Firewall]
 
* [http://www.barracudanetworks.com/ns/products/web-application-controller-overview.php Barracuda Networks - Application Firewall]
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* [http://www.cisco.com/en/US/products/ps9586/index.html Cisco - ACE Web Application Firewall]
 
* [http://www.cisco.com/en/US/products/ps9586/index.html Cisco - ACE Web Application Firewall]
 
* [http://www.citrix.com/English/ps2/products/product.asp?contentID=25636 Citrix - Application Firewall]
 
* [http://www.citrix.com/English/ps2/products/product.asp?contentID=25636 Citrix - Application Firewall]
 +
* [http://www.denyall.com/ DenyAll - Web Application Firewall (WAF)]
 
* [http://www.eeye.com/html/products/secureiis/index.html eEye Digital Security - SecureIIS]
 
* [http://www.eeye.com/html/products/secureiis/index.html eEye Digital Security - SecureIIS]
 
* [http://www.f5.com/products/big-ip/product-modules/application-security-manager.html F5 - Application Security Manager]
 
* [http://www.f5.com/products/big-ip/product-modules/application-security-manager.html F5 - Application Security Manager]
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* [http://www.privacyware.com/intrusion_prevention.html Privacyware - ThreatSentry IIS Web Application Firewall]
 
* [http://www.privacyware.com/intrusion_prevention.html Privacyware - ThreatSentry IIS Web Application Firewall]
 
* [http://www.protegrity.com/WebApplicationFirewall Protegrity - Defiance TMS  - Web Application Firewall]
 
* [http://www.protegrity.com/WebApplicationFirewall Protegrity - Defiance TMS  - Web Application Firewall]
 +
* [http://www.radware.com/Solutions/Enterprise/Security/WebApplicationFirewall.aspx Radware AppWall]
 
* [http://verizondigitalmedia.com/ Verizon - Web Application Firewall]
 
* [http://verizondigitalmedia.com/ Verizon - Web Application Firewall]
 
* [http://www.xtradyne.com/ Xtradyne - Application Firewalls]
 
* [http://www.xtradyne.com/ Xtradyne - Application Firewalls]

Revision as of 20:30, 9 March 2015

This is a countermeasure. To view all countermeasures, please see the Countermeasure Category page.

Description

A web application firewall (WAF) is an appliance, server plugin, or filter that applies a set of rules to an HTTP conversation. Generally, these rules cover common attacks such as cross-site scripting (XSS) and SQL injection. By customizing the rules to your application, many attacks can be identified and blocked. The effort to perform this customization can be significant and needs to be maintained as the application is modified.

A far more detailed description is available at Wikipedia.

Important selection criteria

  • Protection against OWASP top ten
  • Very few false positives (i.e., should NEVER disallow an authorized request)
  • Strength of default (out-of-the-box) defenses
  • Power and ease of learn mode
  • Types of vulnerabilities it can prevent
  • Detects disclosure and unauthorized content in outbound reply messages, such as credit-card and Social Security numbers
  • Both positive and negative security model support
  • Simplified and intuitive user interface
  • Cluster mode support
  • High performance (milliseconds latency)
  • Complete alerting, forensics, reporting capabilities
  • Web services\XML support
  • Brute force protection
  • Ability to active (block and log), passive (log only) and bypass the web traffic
  • Ability to keep individual users constrained to exactly what they have seen in the current session
  • Ability to be configured to prevent ANY specific problem (e.g., emergency patches)
  • Form factor: software vs. hardware (hardware generally preferred)

You may also use OWASP Best Practices: Use of Web Application Firewalls to find out where and when to use a WAF. You may also find the Web Application Firewall Evaluation Criteria useful for evaluating the performance and other characteristics of a WAF.

The London Chapter WAF event held in 2006 has some comparative info amongst the WAF vendors that participated in the event.

Tools

OWASP tools of this type

  • The OWASP Stinger Project is not a full blown WAF, but it is a strong Java/J2EE input validation filter that can be put in front of your application.
  • NAXSI is a WAF for NGINX.

Well-known open source tools of this type

Commercial tools from OWASP members of this type

These vendors have decided to support OWASP by becoming members. OWASP appreciates the support from these organizations, but cannot endorse any commercial products or services.

Other well-known commercial tools of this type