CVE-2021-27140 : What You Need to Know

An issue was discovered on FiberHome HG6245D devices through RP2613 where passwords and authentication cookies are stored in cleartext in the web.log HTTP logs.

Understanding CVE-2021-27140

This CVE highlights a vulnerability in FiberHome HG6245D devices that exposes sensitive information in cleartext within the HTTP logs.

What is CVE-2021-27140?

The vulnerability allows attackers to access passwords and authentication cookies stored in plain text in the web.log HTTP logs on FiberHome HG6245D devices.

The Impact of CVE-2021-27140

Exploiting this vulnerability could lead to unauthorized access to sensitive user credentials and authentication tokens, posing a significant security risk to affected devices and their users.

Technical Details of CVE-2021-27140

The technical details of CVE-2021-27140 include:

Vulnerability Description

Passwords and authentication cookies are stored in cleartext in the web.log HTTP logs of FiberHome HG6245D devices through RP2613.

Affected Systems and Versions

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

Exploitation Mechanism

Attackers can exploit this vulnerability by accessing the web.log HTTP logs to retrieve sensitive information such as passwords and authentication cookies.

Mitigation and Prevention

To address CVE-2021-27140, consider the following mitigation and prevention strategies:

Immediate Steps to Take

Disable HTTP logging on FiberHome HG6245D devices to prevent further exposure of sensitive data.
Monitor network traffic for any suspicious activities that may indicate exploitation of this vulnerability.

Long-Term Security Practices

Regularly update the firmware of FiberHome HG6245D devices to ensure that security patches are applied promptly.
Encrypt sensitive information stored in logs and databases to prevent unauthorized access.

Patching and Updates

Keep track of security advisories and updates from FiberHome regarding this vulnerability. Apply patches and updates as soon as they are available to secure vulnerable devices.