WiFi networks are a potential security weak point for businesses, although the introduction of WPA3 will improve Wi-Fi security. WPA3 Wi-Fi security enhancements address many WP2 vulnerabilities, but WPA3 alone is not enough to block all WiFi threats.
WiFi Security Protocols
The WPA WiFi security protocol was introduced in 1999, and while it improved security, cracking WPA security is far from difficult. Security enhancements were introduced with WPA2 in 2004, but while more secure, WPA2 does not fix all vulnerabilities. Little has changed in the past 14 years, but at long last, WPA3 is here. Use WPA3 and Wi-Fi security will be significantly enhanced, as several important WP2 vulnerabilities have been fixed.
WPA3 WiFi Security Enhancements
One of the biggest WiFi security threats is open networks. These are WiFi networks that require no passwords or keys. Users can connect without entering a pre-shared key. All a user needs to know is the SSID of the access point to connect. These open networks are used in establishments such as coffee shops, hotels, and restaurants as it is easy for customers to connect. The problem is users send plain text to the access point, which can easily be intercepted.
WPA3 spells an end to open networks. WPA3 uses Opportunistic Wireless Encryption (OWE). Any network that does not require a password, will encrypt data without any user interaction or configuration. This is achieved through Individualized Data Protection or IDP. Any device that attempts to connect to the access point receives its own key from the access point, even if no connection to the AP has been made before. This control means the key cannot be sniffed and even if a password is required, having access to that password does not allow the data of other users to be accessed.
Another security enhancement that has been made in WP3 reduces potential for password cracking attacks such as the WPA2 KRACK Attack. WPA2 is vulnerable to brute force and dictionary-based attacks. That is because security relies on the AP provider setting a secure password and many establishments don’t. With WPA3, the Pre-Shared Key (PSK) exchange protocol is replaced with Simultaneous Authentication of Equals (SAE) or the Dragonfly Key Exchange, which improves security of the initial key exchange and offers better protection against offline dictionary-based attacks.
WPA3 also addresses security vulnerabilities in the WiFi Protected Setup (WPS) that made it easy to link new devices such as a WiFi extender. In WPA3, this has been replaced with Wi-Fi Device Provisioning Protocol (DPP).
Configuring IoT devices that lack displays has been made easier, the 192-bit Commercial National Security Algorithm is used for enhanced protection for government, defense and industrial networks, and better controls have been implemented against brute force attacks. These and other enhancements mean WPA3 is far more secure.
Unfortunately, at present, very few manufacturers support WPA3, although that is likely to change in 2019.
WPA3 WiFi Security Issues
Even with WPA3 WiFi security enhancements, WiFi networks will still be vulnerable. WPA3 includes encryption for non-password-protected networks, but it does not require authentication. That is up to hotspot providers to set. WPA3 it is just as susceptible to man-in-the-middle attacks and offers no protection against evil twin attacks. The user must ensure they access the genuine access point SSID.
The connection to the AP may be more secure, but WPA3 does not offer protection against malware downloads. Users will still be at risk from malicious websites unless a DNS filtering solution is used – A web filter to protect WiFi networks.
Improve WiFi Security with a DNS-Based WiFi Filtering Solution
A DNS-based WiFi filtering solution such as WebTitan Cloud for WiFi protects users of a WiFi network from malware attacks, ransomware downloads, and phishing threats. The cloud-based filter also allows businesses that provide WiFi access points to carefully control the content that can be accessed by employees, customers, and other guest users.
By upgrading to WPA3 WiFi security will be improved. With WebTitan Cloud for WiFi, users will also be protected once they are connected to the network.
Further information on WebTitan Cloud for WiFi is detailed in the video below. For further information on WiFi security, including WebTitan pricing and to book a product demonstration, contact the TitanHQ team today.