![]() ![]() Misconfigured servers are another threat that a WAF can defend against. One of the most common prevalent application attack vectors is cross-site scripting, which involves attackers injecting code which is malicious into the browser of the client to gain access to session cookies, steal confidential data, and even change content to display false information.Ī Web Application Firewall can be configured to enforce Security Policy to prevent these kinds of attacks or blocks payload emanating from such attacks or prevent them at the point of exploitation attempt itself. When between 70% to 80% of applications have high or critical vulnerabilities waiting to be exploited, the need to combat these vulnerabilities is of vital importance.Ī business has to use a range of tools specialized at each level of the OSI (layer 3 network-level filtering and layer 7 application-level filtering) to provide a holistic defense against many different attack vectors.Īpplication codes and settings are never going to be completely perfect, so it is important to ensure that data is protected from the distributed denial of service (DDoS) attacks, hackers, bad bots and spammers, and most importantly against vulnerabilities and business logic flaws already present in the application.Ī Web Application Firewall sits between the client and the internet services they want to be connected to, with the WAF checking those connections as they are routed to it first. See: 7 Cybersecurity Trends to Look Out for in 2020 ![]() A layer7 attack targets your web application directly and can be exploited with lower computing or investment by carrying a targeted attack on the application to exploit its vulnerabilities. Why a Web application firewall is a vital tool to keep websites safe from cyber attacks.Ī Web Application Firewall, also sometimes referred to simply as a WAF, can protect websites by monitoring and filtering HTTP traffic between the internet and the website.Ī WAF can prevent websites from being attacked by the likes of cross-site request forgery ( CSRF), Local File Inclusion ( LFI), SQL injection, cross-site scripting ( XSS), and more.Ī Web Application Firewall is intended to defend purely against layer 7 application-level attacks.
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