CVE-2024-23726 Explained : Impact and Mitigation

This CVE-2024-23726 relates to Ubee DDW365 XCNDDW365 and DDW366 XCNDXW3WB devices which have predictable default WPA2 PSKs that could potentially lead to unauthorized remote access. A remote attacker in close proximity to a Wi-Fi network can derive the default WPA2-PSK value by observing a beacon frame. The PSK is generated by utilizing the first six characters of the SSID and the last six of the BSSID, decrementing the last digit.

Understanding CVE-2024-23726

This section delves deeper into the nature of CVE-2024-23726 and its potential impact on affected systems.

What is CVE-2024-23726?

CVE-2024-23726 involves Ubee DDW365 XCNDDW365 and DDW366 XCNDXW3WB devices having easily guessable default WPA2 PSKs, making them vulnerable to unauthorized remote access.

The Impact of CVE-2024-23726

The vulnerability poses a risk of remote attackers gaining unauthorized access to affected devices, compromising the security and privacy of the network they are connected to.

Technical Details of CVE-2024-23726

In this section, we will explore specific technical details of the CVE-2024-23726 vulnerability.

Vulnerability Description

The vulnerability lies in the generation of WPA2-PSK values based on easily obtainable information from beacon frames, making it susceptible to unauthorized access.

Affected Systems and Versions

The issue affects Ubee DDW365 XCNDDW365 and DDW366 XCNDXW3WB devices, potentially impacting their security due to the predictable default WPA2 PSKs.

Exploitation Mechanism

By observing a beacon frame, a remote attacker can derive the default WPA2-PSK value using a specific formula that involves the SSID and BSSID of the Wi-Fi network.

Mitigation and Prevention

To address CVE-2024-23726 and enhance the security posture of affected devices, it is crucial to implement the following mitigation strategies:

Immediate Steps to Take

Change the default WPA2 PSK from the predictable format to a strong, randomly generated passphrase.
Disable WPS (Wi-Fi Protected Setup) if not in use to reduce attack surface.
Regularly monitor network activity for any suspicious behavior.

Long-Term Security Practices

Regularly update firmware and security patches provided by the device manufacturer.
Implement network segmentation and access controls to limit unauthorized access.
Conduct regular security assessments and penetration testing to identify and address vulnerabilities proactively.

Patching and Updates

Stay informed about security advisories and updates released by Ubee for DDW365 XCNDDW365 and DDW366 XCNDXW3WB devices. Apply patches promptly to address known security vulnerabilities and ensure the overall security of the network.