CVE-2021-27174 : Exploit Details and Defense Strategies

This article provides an overview of CVE-2021-27174, a vulnerability found in FiberHome HG6245D devices through RP2613, allowing access to cleartext passwords in wifi_custom.cfg.

Understanding CVE-2021-27174

This section delves into the details of the vulnerability affecting FiberHome HG6245D devices.

What is CVE-2021-27174?

The vulnerability in FiberHome HG6245D devices exposes cleartext passwords in the wifi_custom.cfg file due to insecure permissions.

The Impact of CVE-2021-27174

The presence of cleartext passwords with inadequate permissions poses a significant security risk, potentially leading to unauthorized access.

Technical Details of CVE-2021-27174

Explore the technical aspects of the CVE-2021-27174 vulnerability below.

Vulnerability Description

An issue was discovered on FiberHome HG6245D devices through RP2613 where wifi_custom.cfg contains cleartext passwords due to insecure permissions.

Affected Systems and Versions

The vulnerability affects FiberHome HG6245D devices running RP2613.

Exploitation Mechanism

Attackers can exploit this vulnerability to gain unauthorized access using the exposed cleartext passwords.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2021-27174 below.

Immediate Steps to Take

Immediately restrict access to the affected file and change all passwords exposed in wifi_custom.cfg.

Long-Term Security Practices

Implement secure password management practices and regular security audits to prevent similar incidents in the future.

Patching and Updates

Stay informed about security updates from FiberHome and apply patches promptly to mitigate the vulnerability.