CVE-2017-18373 : Security Advisory and Response

A vulnerability in the TrueOnline distributed Billion 5200W-T TCLinux router allows unauthorized access through hardcoded credentials.

Understanding CVE-2017-18373

This CVE identifies a security issue in the Billion 5200W-T TCLinux router distributed by TrueOnline, enabling unauthorized access through default and hardcoded credentials.

What is CVE-2017-18373?

The TrueOnline Billion 5200W-T TCLinux router contains default and hardcoded credentials for two service accounts, allowing unauthorized individuals to exploit the router's web interface for malicious activities.

The Impact of CVE-2017-18373

The vulnerability permits attackers to gain access to the router's web interface, execute authenticated command injections, and manipulate router settings using the compromised accounts.

Technical Details of CVE-2017-18373

The technical aspects of the CVE-2017-18373 vulnerability are outlined below:

Vulnerability Description

The router has three user accounts with default passwords, including two service accounts with hardcoded credentials.

Affected Systems and Versions

Product: Billion 5200W-T TCLinux Fw $7.3.8.0 v008 130603
Vendor: TrueOnline
Version: Not applicable

Exploitation Mechanism

Unauthorized users can leverage the hardcoded credentials of the 'true' and 'user3' accounts to compromise the router's security.

Mitigation and Prevention

Protecting against CVE-2017-18373 involves taking immediate and long-term security measures:

Immediate Steps to Take

Change default passwords and ensure strong, unique credentials are set for all accounts.
Regularly monitor router logs for any suspicious activities.

Long-Term Security Practices

Implement network segmentation to restrict access to critical devices.
Conduct regular security audits and penetration testing to identify and address vulnerabilities.

Patching and Updates

Apply firmware updates provided by the vendor to address the hardcoded credentials issue.