Web Application Firewall. Enhancing web security in the digital age.pdf

WAFs act as a shield against these threats by implementing security policies tailored to the specific vulnerabilities and behavior patterns of web applications. By inspecting incoming and outgoing HTTP traffic, WAFs can detect malicious payloads, anomalous patterns, and suspicious activities in real-time, thereby thwarting attacks before they can exploit vulnerabilities within the web application.

1. WEB APPLICATION
FIREWALL:
Enhancing Web
Security in the
Digital Age

2. INTRODUCTION
Web applications are integral to modern business functions,
serving as platforms for operations, communication, and
commerce.
However, this reliance on web technologies exposes these
applications to a plethora of cyber threats.
Web Application Firewalls (WAFs) have become indispensable in
mitigating these risks by providing a protective barrier between
web applications and potential attackers.

3. Challenge-Response
Mechanisms
Features:-
WAFs offer a range of features and
capabilities aimed at detecting and
mitigating common web-based
attacks, including:
Rule-Based Filtering
Anomaly Detection
Protection Against
DDoS Attacks

4. Benefits of Advanced WAF:-
01
Enhanced
threat
detection
and
prevention
02
Real-time
monitoring and
incident
response
capabilities
03
Machine
learning and
AI-powered
security
intelligence
A WAF or web application firewall helps protect web
applications by filtering and monitoring HTTP traffic
between a web application and the Internet.

5. Key Challenges with
Traditional WAF:-
Difficulty in
managing
false
positives
Inability to
detect
advanced
threats
Limited
Rule-based
protections
Lack of
scalability
and
performance
issues

6. HOW WAF WORKS?
Traffic Inspection-
Logging And reporting-
A Web Application Firewall(WAF) works as a barrier between your web application and the
internet, protecting it from various types of cyber threats and attacks.
When a request is made to your web
application, the WAF intercepts it before it
reaches your application server. It inspects
both the request (incoming traffic) and the
response (outgoing traffic).
WAFs typically maintain logs of all incoming
requests, including those that are blocked,
allowed, or flagged for further investigation.
This logging provides valuable insights into
the nature and frequency of attacks, helping
administrators fine-tune security policies and
respond to incidents effectively.

7. WAF WORKS:-
Rate limiting and access control-
Rule-Based Filtering-
A Web Application Firewall (WAF) works as a barrier between your web application
and the internet, protecting it from various types of cyber threats and attacks.
WAFs can also enforce rate limiting policies to prevent abuse
or excessive requests from reaching your application servers.
They can control access based on factors like IP address,
geolocation, user agent, and more, helping to mitigate DDoS
attacks and brute force attempts.
WAFs use pre-defined rulesets or custom rules configured by
administrators to analyze incoming traffic for signs of malicious
activity or suspicious patterns. These rules can cover a wide
range of attack vectors, including SQL injection, cross-site
scripting (XSS), and other common web application
vulnerabilities.

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