CVE-2019-13393 : Security Advisory and Response

In the Voo labeled NETGEAR CG3700b custom firmware V2.02.03, a vulnerability exists where the administrative console and the WPA2 pre-shared key share a common default passphrase. This vulnerability allows attackers to obtain the passphrase through specific attacks.

Understanding CVE-2019-13393

This CVE identifies a security issue in the Voo branded NETGEAR CG3700b custom firmware V2.02.03, where the default passphrase for administrative access and WPA2 encryption is the same, making it susceptible to exploitation.

What is CVE-2019-13393?

The vulnerability in the NETGEAR CG3700b custom firmware allows attackers to retrieve the default passphrase by exploiting either an attack on HTTP Basic Authentication or a WPA2 attack.

The Impact of CVE-2019-13393

This vulnerability poses a significant security risk as it enables unauthorized access to the administrative console and compromises the WPA2 encryption key, potentially leading to unauthorized network access and data breaches.

Technical Details of CVE-2019-13393

The technical aspects of this CVE include:

Vulnerability Description

The Voo branded NETGEAR CG3700b custom firmware V2.02.03 uses an identical 8-character default passphrase for both the administrative console and the WPA2 pre-shared key, creating a security loophole.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Version: V2.02.03

Exploitation Mechanism

Attackers can exploit this vulnerability by targeting HTTP Basic Authentication or conducting a WPA2 attack to retrieve the shared default passphrase.

Mitigation and Prevention

To address CVE-2019-13393, follow these steps:

Immediate Steps to Take

Change the default passphrase to a strong, unique one for both the administrative console and WPA2 encryption.
Regularly monitor network activity for any unauthorized access attempts.

Long-Term Security Practices

Implement multi-factor authentication for enhanced security.
Conduct regular security audits and penetration testing to identify and address vulnerabilities.

Patching and Updates

Update the firmware of the affected device to a secure version that addresses this vulnerability.