CVE-2021-4241 Explained : Impact and Mitigation

A vulnerability was found in phpservermon where the setUserLoggedIn function utilizes a predictable algorithm in the random number generator.

Understanding CVE-2021-4241

This section will cover the details regarding CVE-2021-4241.

What is CVE-2021-4241?

The vulnerability exists in the setUserLoggedIn function of phpservermon due to the use of a predictable algorithm in the random number generator.

The Impact of CVE-2021-4241

The exploitation of this vulnerability can lead to security compromise as the random number generator's predictability can be abused.

Technical Details of CVE-2021-4241

In this section, we will delve deeper into the technical aspects of CVE-2021-4241.

Vulnerability Description

The vulnerability involves insufficient entropy, leading to the use of a predictable algorithm in the random number generator in phpservermon.

Affected Systems and Versions

The affected system is phpservermon, with the setUserLoggedIn function being impacted.

Exploitation Mechanism

Exploiting this vulnerability involves manipulating the predictable algorithm used in the random number generator within phpservermon.

Mitigation and Prevention

Here, we will discuss the necessary steps to mitigate and prevent exploitation of CVE-2021-4241.

Immediate Steps to Take

It is crucial to apply the provided patch (bb10a5f3c68527c58073258cb12446782d223bc3) to address this vulnerability in phpservermon.

Long-Term Security Practices

To enhance security in the long term, consider implementing strong entropy sources and secure random number generation practices.

Patching and Updates

Regularly check for security updates and patches for phpservermon to ensure that known vulnerabilities are promptly addressed.