CVE-2021-27167 : Vulnerability Insights and Analysis

An issue was discovered on FiberHome HG6245D devices through RP2613 where the admin account is protected by a four hexadecimal character password.

Understanding CVE-2021-27167

This CVE highlights a vulnerability in FiberHome HG6245D devices that could allow unauthorized access to the admin account.

What is CVE-2021-27167?

CVE-2021-27167 reveals a hardcoded password vulnerability on FiberHome HG6245D devices, making the admin account easily accessible with a four-character hexadecimal password.

The Impact of CVE-2021-27167

The impact of this vulnerability is severe as it exposes critical administrative privileges to potential attackers, compromising the security and integrity of the affected devices.

Technical Details of CVE-2021-27167

This section covers the technical aspects of the vulnerability in FiberHome HG6245D devices.

Vulnerability Description

The vulnerability lies in the generation of the four hexadecimal character password for the admin account in init_3bb_password within libci_adaptation_layer.so.

Affected Systems and Versions

The issue affects FiberHome HG6245D devices running RP2613.

Exploitation Mechanism

Unauthorized users can exploit this vulnerability by utilizing the hardcoded password to gain unauthorized access to the admin account on the affected devices.

Mitigation and Prevention

To safeguard against CVE-2021-27167, immediate action and long-term security practices are essential.

Immediate Steps to Take

Users are advised to change the default admin password to a strong, unique password and restrict network access to the devices.

Long-Term Security Practices

Regularly update firmware, monitor for unusual activity, and implement strong access controls and authentication mechanisms to enhance overall device security.

Patching and Updates

Vendor-supplied patches or security updates should be applied promptly to address the hardcoded password vulnerability and enhance the security posture of FiberHome HG6245D devices.