Ensure You Are Protected against Wi-Fi Vulnerabilities

by Craig Risi on Web Application Firewall • June 3, 2021 Ensure You Are Protected against Wi-Fi Vulnerabilities

Wi-Fi connectivity is something we have come to take for granted and see as a basic human right. It’s perhaps quite scary to think of the extent to which we all rely on this particular piece of technology, while many of us are oblivious to the significant vulnerability threat that Wi-Fi poses. One of the most common Wi-Fi vulnerability threats is Wi-Fi encryption attacks.

Wi-Fi Encryption Attacks

Krack Wi-Fi Vulnerability was discovered by Mathy Vanhoef in 2016. Since then, Vanhoef has uncovered a collection of vulnerabilities relating to the way Wi-Fi handles large chunks of data. It's a unique bug that’s both difficult to exploit and difficult to correct. The bug can be exposed through the Wi-Fi standard itself or through the way the Wi-Fi device is manufactured.

Vanhoef calls the collection of vulnerabilities “FragAttacks.” The name stems from a mashup of the words “fragmentation” and “aggregation.”

Such vulnerabilities could be exploited by hackers, allowing them to intercept sensitive data, or show users fake websites, even if they’re using Wi-Fi networks secured with WPA2 or even WPA3. Hackers could also theoretically exploit other devices on your home network once inside your Wi-Fi system.

Watch the demonstration below to see how these flaws work and how they can be exploited.


Wi-Fi encryption attacks are a reminder that we shouldn’t ever take security for granted and that no matter how much you might trust the networks around you, there is always a need for extra security, especially at the application level.

Vanhoef has since notified the Wi-Fi Alliance, which has resulted in several manufacturers already releasing patches for some of their products. Such manufacturers include:

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Staying Ahead of the Attacks

If you are using Wi-Fi technologies from any of the companies listed above, ensure that you download the latest updates so that you are fully covered.

Regardless of how secure you believe your Wi-Fi is, it’s always important to follow other security best practices, such as keeping your computers updated, using strong and unique passwords, staying away from shady sites, and making sure you’re using HTTPS as often as possible. Security should never be compromised at any layer in a network.

For companies, it is beneficial to make sure that an appropriate level of application security is in place to mitigate any unknown vulnerabilities. Companies should prioritize all of their important application nodes in their system to have the appropriate Application Layer (Layer 7) vulnerability protection. Snapt Nova’s Layer 7 Web Application Firewall (WAF) provides a flexible, centralized security configuration and automation, ensuring that unsecured network connections do not compromise your business.

As the application layer is the closest layer to the end-user, it provides hackers with the largest threat surface. Attacks such as DDoS attacks, HTTP floods, SQL injections, cross-site scripting, parameter tampering, and Slowloris attacks remain the most critical to be protected against. Companies that have a secure ADC solution in front of their applications will be able to handle these types of security vulnerabilities.


What Can You Expect from Snapt Nova ADCs and WAF?

Snapt Nova ADCs and WAF provide the following security features that enable your company to secure applications across all levels:

  • Automatic A+ SSL: Ensure that your SSL is as secure as possible, keeping your users’ data safe.
  • Intelligent HTTP/S Security: Protects against DoS, threats, botnets, and application attacks and is powered by ML.
  • Full Layer 7 Security: Easy-to-use OWASP Top 10 protection for all your VMs, cloud servers, and containers that provides full Layer 7 coverage across your entire ecosystem.
  • Powerful Telemetry: More than just TCP data, Snapt monitors request rates, HTTP error rates, HTTP POSTs, known vulnerability endpoints, and much more to determine the likelihood of a threat in real time and mitigate it appropriately. 
  • Machine Learning and AI: Nova's ML engine profiles your ADCs and the servers behind them, constructing patterns of "normal" behavior to identify anomalies and drive dynamic adjustments in load when faced with a DDoS threat. 

Don’t take a chance with your Wi-Fi security. Enable your DevOps and IT Ops teams to have precise control of the security and monitoring of your modern infrastructure with Snapt Nova.

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