CVE-2021-41807 : Vulnerability Insights and Analysis

This CVE-2021-41807 pertains to a vulnerability in M-Files Server and M-Files Web products that allows brute-forcing of specific user accounts due to a lack of rate limiting in versions prior to 21.12.10873.0.

Understanding CVE-2021-41807

CVE-2021-41807 involves a security issue in M-Files Server and M-Files Web products that enables easier unauthorized access to user accounts.

What is CVE-2021-41807?

The vulnerability in M-Files Server and M-Files Web products, versions below 21.12.10873.0, allows malicious actors to perform brute-force attacks on certain user accounts due to the absence of rate limiting.

The Impact of CVE-2021-41807

The impact is rated with a CVSS base score of 7.5 (High), with high confidentiality impact and low attack complexity, making it a critical vulnerability that could lead to unauthorized access.

Technical Details of CVE-2021-41807

This section delves into the technical aspects of the vulnerability.

Vulnerability Description

The lack of rate limiting in M-Files Server and M-Files Web products before version 21.12.10873.0 permits unlimited login attempts, facilitating brute-force attacks on specific user accounts.

Affected Systems and Versions

M-Files Server versions Online and 2018 below 21.12.10873.0
M-Files Web versions Classic and vNext before 21.12.10873.0

Exploitation Mechanism

Malicious actors can exploit this vulnerability by endlessly attempting to login to targeted user accounts without any restrictions, potentially gaining unauthorized access.

Mitigation and Prevention

Here are measures to mitigate and prevent exploitation of CVE-2021-41807.

Immediate Steps to Take

Upgrade M-Files to version 21.12.10873.0 or newer to patch the vulnerability.

Long-Term Security Practices

Implement strong password policies.
Monitor login attempts and implement account lockout mechanisms.

Patching and Updates

Regularly apply security patches and updates to M-Files products to address known vulnerabilities.