CVE-2021-27176 Explained : Impact and Mitigation

This article discusses a vulnerability identified as CVE-2021-27176 affecting FiberHome HG6245D devices through RP2613, leading to cleartext passwords exposure in wifictl_5g.cfg with insecure permissions.

Understanding CVE-2021-27176

This section delves into the nature and implications of the CVE-2021-27176 vulnerability.

What is CVE-2021-27176?

The CVE-2021-27176 vulnerability pertains to FiberHome HG6245D devices, revealing plaintext passwords within wifictl_5g.cfg due to inadequate file permissions.

The Impact of CVE-2021-27176

This vulnerability allows unauthorized individuals to access sensitive credentials stored on the affected devices, posing a significant security risk.

Technical Details of CVE-2021-27176

This section provides in-depth technical insights into the CVE-2021-27176 vulnerability.

Vulnerability Description

The flaw exposes cleartext passwords in the wifictl_5g.cfg file of FiberHome HG6245D devices running RP2613 with improper file permissions.

Affected Systems and Versions

The issue affects FiberHome HG6245D devices using RP2613, compromising the security of systems that contain the vulnerable file.

Exploitation Mechanism

Attackers can exploit this vulnerability by gaining unauthorized access to the device and reading the plaintext passwords from the wifictl_5g.cfg file.

Mitigation and Prevention

This section outlines measures to mitigate the risks associated with CVE-2021-27176.

Immediate Steps to Take

Users are advised to restrict access to the affected devices and monitor for any suspicious activities indicating unauthorized access.

Long-Term Security Practices

Implementing secure password management practices and conducting regular security audits can help prevent similar vulnerabilities in the future.

Patching and Updates

To address CVE-2021-27176, users should install patches or updates provided by FiberHome to secure the affected devices.