CVE-2021-27169 : Exploit Details and Defense Strategies

This article provides insights into CVE-2021-27169, a vulnerability discovered on FiberHome AN5506-04-FA devices with firmware RP2631, exposing a gepon password for the gepon account.

Understanding CVE-2021-27169

In this section, we will delve into the details of the vulnerability.

What is CVE-2021-27169?

CVE-2021-27169 is an issue identified on FiberHome AN5506-04-FA devices running firmware RP2631. The vulnerability allows unauthorized access to the gepon account due to a hardcoded password.

The Impact of CVE-2021-27169

The presence of a gepon password for the gepon account on affected devices can lead to potential security breaches and unauthorized access to sensitive information.

Technical Details of CVE-2021-27169

Let's explore the technical aspects of this vulnerability.

Vulnerability Description

The vulnerability in FiberHome AN5506-04-FA devices with firmware RP2631 stems from the existence of a gepon password for the gepon account, creating a security loophole.

Affected Systems and Versions

The issue affects devices utilizing RP2631 firmware, specifically FiberHome AN5506-04-FA models.

Exploitation Mechanism

By exploiting the hardcoded gepon password, threat actors can gain unauthorized access to the gepon account on vulnerable devices.

Mitigation and Prevention

Discover the steps to mitigate and prevent the exploitation of CVE-2021-27169.

Immediate Steps to Take

Users are advised to change the default gepon password and implement strong access controls to secure the gepon account.

Long-Term Security Practices

Regularly updating firmware and conducting security audits can help prevent similar vulnerabilities from being exploited in the future.

Patching and Updates

Vendors are recommended to release patches that eliminate the hardcoded gepon password vulnerability in affected devices.