CVE-2021-45841 Explained : Impact and Mitigation

CVE-2021-45841 is a vulnerability found in Terramaster F4-210, F2-210 TOS 4.2.X that allows an attacker to self-sign session cookies, potentially leading to unauthorized access.

Understanding CVE-2021-45841

What is CVE-2021-45841?

In Terramaster F4-210, F2-210 TOS 4.2.X, an attacker can manipulate session cookies with knowledge of the target's MAC address and user's password hash, allowing unauthorized access.

The Impact of CVE-2021-45841

This vulnerability enables attackers to sign session cookies, potentially compromising user authentication and allowing unauthorized access to guest accounts.

Technical Details of CVE-2021-45841

Vulnerability Description

The flaw in Terramaster F4-210, F2-210 TOS 4.2.X allows self-signing of session cookies, granting unauthorized access to guest accounts.

Affected Systems and Versions

Vendor: n/a
Product: n/a
Versions: n/a (all affected)

Exploitation Mechanism

The attacker must know the target's MAC address and the user's password hash to exploit this vulnerability, potentially leading to unauthorized access.

Mitigation and Prevention

Immediate Steps to Take

Disable guest users to prevent potential unauthorized access.
Regularly monitor network traffic for any suspicious activities.

Long-Term Security Practices

Implement multi-factor authentication for enhanced security.
Keep systems up to date with the latest security patches.

Patching and Updates

Apply relevant patches provided by Terramaster to fix the vulnerability and enhance system security.