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This paper is from the SANS Institute Reading Room site. Reposting is not permitted without express written permission. Using Web Application Firewall to detect and block common web application attacks A web application firewall is not as common as a network firewall is, but it has been catching our eyes in recent security news, security articles and conferences. Enterprise has been adopting this technology because it enhances web application security significantly. But configuring, implementing and maintaining this new technology is not trivial. To be successful in using it, you must understand application s behavior thoroughly and carefully configure the firewall rules. Also, since commercial versions of this techn..