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Advanced wireless attacks: hacking WPA2-Enterprise networks
Wi-Fi Protected Access 2 (WPA2) is the most widely used protocol for wireless security. WPA2-Enterprise networks, which use 802.1x authentication, provide the strongest protection available; however, they can still be vulnerable to attack if proper security practices are not followed. In this article, we’ll take a look at some of the advanced attacks that can be used against WPA2-Enterprise networks and how to protect yourself from them.
Exploiting Enterprise Networks With Evil Twin Attacks
The evil twin attack is a type of man-in-the-middle attack in which an attacker sets up a fake Wi-Fi network with the same name as a legitimate network. When users connect to the malicious network, the attacker can intercept their traffic and launch further attacks.
With a WPA2-Enterprise network, the attacker can exploit the weaknesses in the protocols used to authenticate clients. For example, the Extensible Authentication Protocol-Flexible Authentication via Secure Tunneling (EAP-FAST) protocol used by many organizations is vulnerable to dictionary attacks.
The attacker can also use a brute-force attack on the authentication process. This involves using automated tools to guess passwords until the correct one is found. This technique is particularly effective against networks with weak passwords or default credentials.
Defending Against Advanced Attacks
The best way to defend against these types of attacks is to ensure that your network is properly configured. Here are some best practices to follow:
- Ensure all users have strong, unique passwords.
- Set up two-factor authentication for added security.
- Enable network segmentation to restrict access to sensitive information.
- Configure your access points to broadcast a separate SSID for guest access.
- Run periodic scans to detect rogue access points.
- Use the latest encryption standards and protocols.
- Monitor network traffic for suspicious activity.
You should also ensure that your wireless hardware is up-to-date with the latest security patches. Many vendors provide firmware upgrades for their access points and routers to help ensure they remain secure.
Conclusion
WPA2-Enterprise networks provide strong security, but only if they are properly configured and monitored. By following the best practices outlined in this article, you can help keep your network safe from advanced wireless attacks.
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