The New WiFi Takeover Attack

A newly identified WiFi takeover attack (CVE-2024-30078) has surfaced, posing serious threats to network security, with an attacker not being required to have physical access to the targeted computer, although physical proximity is needed. This attack, which leverages vulnerabilities in WPA2 and WPA3 protocols, allows hackers to gain unauthorized access to WiFi networks, intercept data, and take control of connected devices. Here’s a detailed look at how this attack works and the steps you can take to protect your network.

Microsoft has confirmed that with no special access conditions or extenuating circumstances needed, apart from the proximity requirement, an attacker could “expect repeatable success against the vulnerable component.” Microsoft also warns that an attacker requires no authentication as a user before exploiting this vulnerability, nor any access to settings or files on the victim’s machine before carrying out the attack. Furthermore, the user of the targeted device does not need to interact at all: there is no link to click, no image to load, and no file to execute.

Understanding the WiFi Takeover Attack

The WiFi takeover attack targets flaws in the handshake process of WPA2 and WPA3 protocols, which are required for establishing secure connections between devices and access points (APs). By exploiting these vulnerabilities, attackers can bypass authentication mechanisms and easily gain access to a network.

How Hackers Exploit This Vulnerability

1. Reconnaissance: The attacker scans for WiFi networks using readily available tools to identify those with exploitable WPA2 or WPA3 vulnerabilities. Some of these tools are very inexpensive, and we usually use Wireshark (WiFi Analyzer, WiFi Commander, and NetSpot)
2. Handshake Interception: During the handshake process, the attacker captures and manipulates the packets between the device and the access point. This step is very important because it allows the attacker to bypass the encryption that protects the data.
3. Man-in-the-Middle (MitM) Attack: By setting up a rogue access point with the identical SSID (Service Set Identifier) as the target network, the attacker lures devices to connect to this fake network. Once connected, the attacker intercepts and relays communications between the device and the legitimate network, gaining complete visibility and control over the data transmitted.
4. Network Control and Exploitation: With control over the MitM setup, the attacker can inject malicious code, steal sensitive information such as login credentials and personal data, and even push malware to connected devices. The attacker can also use this position to escalate their network privileges further, gaining deeper access to critical systems and data.

Real-World Implications

• Data Interception: Hackers can capture sensitive information, including passwords, credit card details, and confidential communications, leading to identity theft and financial loss.
• Device Compromise: Once inside, attackers can pivot across the network and take control of connected devices, turning them into bots to launch further attacks or extract valuable data.
• Network Disruption: By manipulating network traffic, attackers can disrupt services, causing operational downtime and financial losses.

Mitigation Strategies

To defend against this sophisticated attack, consider implementing the following measures:

1. Firmware Updates: Regularly update the firmware of your WiFi devices to patch known vulnerabilities.
2. Strong Encryption: Use WPA3 where possible and ensure robust encryption practices.
3. Network Segmentation: Segment your network to limit the amount of data that potential breaches could get access to and the movement of attackers.
4. Advanced Monitoring: Deploy continuous log and network monitoring (SIEM) and intrusion detection systems to identify and respond to suspicious activities quickly.
5. User Training: Educate users on the risks of connecting to unknown or suspicious WiFi networks and the importance of using VPNs.

Conclusion

The emergence of this new WiFi takeover attack underscores the need for vigilant and proactive cybersecurity practices. Organizations can better protect their networks and sensitive data by understanding the intricacies of how such attacks are carried out and implementing robust security measures. At Tanner Security Consultants, we specialize in providing comprehensive network security solutions to help you stay ahead of evolving threats.

Stay informed, stay protected, and ensure your cybersecurity measures are up to date to defend against these emerging threats.