3 Reasons Every website needs a Web application Firewall (WAF)

Web Application Firewall (WAF)

A Web Application Firewall (WAF) detects web traffic looking for suspicious activity; it can then automatically filter out illegitimate traffic based on rule sets that you ask it to apply. It looks at both GET and POST-based HTTP requests and applies a rule set. It can block comment spam, cross-site scripting attacks and SQL injections.

Web application firewall is a common security control used by enterprises to protect Web applications against zero-day exploits, impersonation and known vulnerabilities and attackers. Through customized inspections, a WAF is also able to prevent cross site scripting (XSS) attacks, SQL injection attacks, session hijacking and buffer overflows, which traditional network firewalls and other intrusion detection systems may not be capable of doing. WAFs are especially useful to companies that provide products or services over the Internet.

Why you need a Web application Firewall (WAF)

If you’ve already switched to HTTPS, you’ve taken an important first step But it is not enough for Website. web application firewall creates a set of rules designed to protect your website with more advanced features. This includes:

Protection

WAFs work to protect against unauthorized data exposure on a website or application. WAFs are beneficial for any online business, especially eCommerce or online retailers, that rely on storing private user data securely. If your website has suffered a major cyber attack, it can effects the company as well as customer trust. It’s no exaggeration to say a serious web attack can ruin your company, and a WAF can work to protect all incoming and outgoing traffic to your company’s website. The WAF can automatically filter out malicious web traffic and it will allow your business to manually decide who they want to block from their site.

A WAF proactively protects websites and applications against fraud or data theft; blocking any suspicious activity. Inspecting every web request for cross site scripting, SQL injection, path traversal and 400+ other types of attack, this protection ensures that your data, and your customer’s data, remains secure.

Web Application Firewall Security (WAFs) Protects Against

SQL injection, comment spam

Cross-site scripting (XSS)

Distributed denial of service (DDoS) attacks

Application-specific attacks (WordPress, CoreCommerce) and many more.

Automated Patches

It’s necessary to be running vulnerability scans regularly. If you are an eCommerce business you would be running scans several times a month. Consider what you might happen if you discover a vulnerability in your website or application; you might have the all the resources to patch the application or fix the problem quickly, but most businesses won’t have that skill. If your company falls under second group, then your company is at risk as long as that vulnerability is present. Some WAFs have the ability to use your scan findings to temporarily patch your application for immediate protection. It’s not a complete solution, but it’s enough to mitigate risk until you’ve prepared a permanent fix.

Stops Data Leakage

Data leakage can be caused by something as insignificant as a malicious error message presented to a user, so if your application has any important data, such as source code or credit card numbers, then it’s very easy to become subject to a leak. A WAF would scan every request to your Web application users, and if something appears unusual, the WAF stops it from leaving your network. Most WAF’s have high-level behavioral signatures looking for credit card numbers and social security numbers already built-in. But you can customize, and add any additional signatures, such as specific files, information or code.

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