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CVE-2021-27148 : Security Advisory and Response

Learn about CVE-2021-27148, a critical vulnerability in FiberHome HG6245D devices allowing unauthorized access using hardcoded credentials. Find mitigation steps here.

This article provides details about CVE-2021-27148, which is a vulnerability found in FiberHome HG6245D devices through RP2613 where hardcoded credentials are present in the web daemon.

Understanding CVE-2021-27148

This section delves into the nature of the vulnerability and its impact.

What is CVE-2021-27148?

The CVE-2021-27148 vulnerability involves the presence of hardcoded telecomadmin / nE7jA%5m credentials in the web daemon of FiberHome HG6245D devices through RP2613.

The Impact of CVE-2021-27148

The impact of this vulnerability is significant as it allows unauthorized individuals to access the ISP's network using the hardcoded credentials.

Technical Details of CVE-2021-27148

This section covers specific technical aspects of the vulnerability.

Vulnerability Description

The issue arises from the inclusion of hardcoded credentials in the web daemon code, posing a serious security risk.

Affected Systems and Versions

All FiberHome HG6245D devices through RP2613 are affected by this vulnerability.

Exploitation Mechanism

Cyber attackers can exploit this vulnerability by using the hardcoded credentials to gain unauthorized access to the ISP's network.

Mitigation and Prevention

Here, we discuss steps to mitigate and prevent exploitation of CVE-2021-27148.

Immediate Steps to Take

To address this issue, users should change the default credentials on affected devices and implement strong, unique passwords.

Long-Term Security Practices

Regularly updating firmware and monitoring for any unauthorized access attempts are essential long-term security practices.

Patching and Updates

Vendors should release patches that eliminate the presence of hardcoded credentials and encourage users to apply these updates promptly.

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