Contact Us

A

B

C

D

E

F

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Z

Web Application Firewall (WAF)

Simple Definition for Beginners: A web application firewall (WAF) is a security tool that monitors and filters incoming and outgoing traffic to and from web applications, protecting them from various cyber threats such as SQL injection, cross-site scripting (XSS), and other common attacks. Common Use Example: An e-commerce website uses a WAF to block malicious requests, such as SQL injection attempts or unauthorized access attempts, ensuring the security and availability of the online store. Technical Definition for Professionals: A web application firewall (WAF) is a firewall specifically designed to protect web applications from a range of attacks, including but not limited to SQL injection, cross-site scripting (XSS), cross-site request forgery (CSRF), and other application-layer attacks. Key features and functionalities of a WAF include: · Traffic Monitoring: Inspecting HTTP/HTTPS traffic to detect and block malicious requests or anomalies. · Rule-Based Filtering: Applying predefined security rules or custom rules to identify and mitigate known attack patterns and vulnerabilities. · Parameter Validation: Validating input parameters and data submitted to web applications to prevent injection attacks. · Session Protection: Enforcing session management controls, such as cookie integrity checks and session timeout settings, to prevent unauthorized access. · Logging and Reporting: Generating logs and reports on detected threats, blocked requests, and security incidents for analysis and response.

Back to glossary