CVE-2023-31808 : Security Advisory and Response

Technicolor TG670 10.5.N.9 devices contain multiple accounts with hard-coded passwords. One account has administrative privileges, allowing for unrestricted access over the WAN interface if Remote Administration is enabled.

Understanding CVE-2023-31808

This CVE identifies a security issue in Technicolor TG670 10.5.N.9 devices that poses a serious threat to system security.

What is CVE-2023-31808?

The CVE-2023-31808 vulnerability pertains to the presence of hard-coded passwords in multiple accounts on the affected devices. Specifically, one of these accounts grants administrative privileges, enabling unauthorized access via the WAN interface when Remote Administration is enabled.

The Impact of CVE-2023-31808

The presence of hard-coded passwords and the availability of an account with administrative rights can lead to unauthorized users gaining full control over the affected devices. This can result in various malicious activities, including data theft, service disruption, or complete device compromise.

Technical Details of CVE-2023-31808

The following details provide a deeper insight into the technical aspects of the CVE-2023-31808 vulnerability.

Vulnerability Description

The vulnerability involves the existence of multiple accounts with hard-coded passwords, one of which grants administrative access. This allows attackers to exploit the vulnerability for unauthorized system control.

Affected Systems and Versions

The issue impacts Technicolor TG670 devices with firmware version 10.5.N.9. All devices running this specific firmware version are vulnerable to this security flaw.

Exploitation Mechanism

Attackers can exploit this vulnerability by leveraging the hard-coded password in the administrative account, gaining unauthorized access to the affected devices. This can be particularly damaging if Remote Administration is enabled.

Mitigation and Prevention

Effective mitigation strategies and proactive security measures are crucial in addressing the CVE-2023-31808 vulnerability.

Immediate Steps to Take

Users and administrators should immediately disable Remote Administration on Technicolor TG670 devices to mitigate the risk of unauthorized access. Changing all default passwords and implementing strong, unique credentials is also recommended.

Long-Term Security Practices

Implementing regular security audits, keeping firmware up to date, and utilizing network segmentation can enhance the overall security posture of the network and mitigate potential risks from similar vulnerabilities.

Patching and Updates

It is essential for users to apply any security patches or updates released by the device manufacturer to address the CVE-2023-31808 vulnerability effectively.