CVE-2021-27153 : Security Advisory and Response

This article delves into the details of CVE-2021-27153, a vulnerability found in FiberHome HG6245D devices that can expose hardcoded credentials for an ISP.

Understanding CVE-2021-27153

This section will cover the impact, technical details, and mitigation strategies related to CVE-2021-27153.

What is CVE-2021-27153?

CVE-2021-27153 is a security issue identified on FiberHome HG6245D devices running RP2613. The problem lies in the web daemon, which contains hardcoded credentials ('trueadmin/admintrue') that could be exploited by an attacker.

The Impact of CVE-2021-27153

The hardcoded credentials pose a significant security risk as unauthorized users could potentially gain access to sensitive information or manipulate the device settings without proper authorization.

Technical Details of CVE-2021-27153

Let's explore the specific technical aspects of this vulnerability.

Vulnerability Description

The vulnerability arises from the inclusion of hardcoded credentials in the web daemon of FiberHome HG6245D devices, making it susceptible to unauthorized access.

Affected Systems and Versions

The issue affects FiberHome HG6245D devices running RP2613 with the specific hardcoded credentials mentioned.

Exploitation Mechanism

Attackers could exploit this vulnerability by leveraging the hardcoded credentials to gain unauthorized access to the web interface of the affected devices.

Mitigation and Prevention

Discover the steps to mitigate the risks associated with CVE-2021-27153.

Immediate Steps to Take

Users are advised to change the default credentials and implement strong, unique passwords to enhance the security of the affected devices.

Long-Term Security Practices

Implementing regular security audits, monitoring network activity, and keeping systems up to date with the latest firmware can help prevent potential exploitation of this vulnerability.

Patching and Updates

Vendors should release patches that remove the hardcoded credentials from the web daemon of FiberHome HG6245D devices to address this security issue.