A security engineer is reviewing log data and sees the output below:
POST: /payload.php HTTP/1.1
HOST: localhost
Accept: */*
Referrer: http://localhost/
*******

HTTP/1.1 403 Forbidden
Connection: close
Log: Access denied with 403. Pattern matches form bypass Which of the following technologies
was MOST likely being used to generate this log?

A.
Host-based Intrusion Detection System

B.
Web application firewall

C.
Network-based Intrusion Detection System

D.
Stateful Inspection Firewall

E.
URL Content Filter

Explanation:
A web application firewall is a device, server add-on, virtual service, or system filter that defines a
strict set of communication rules for a website and all visitors. It’s intended to be an applicationspecific firewall to prevent cross-site scripting, SQL injection, and other web application attacks.