CVE-2021-21352 : Vulnerability Insights and Analysis

Anuko Time Tracker is an open source web-based time tracking application written in PHP. The vulnerability in TimeTracker before version 1.19.24.5415 allows for predictable tokens in password resets, potentially leading to unauthorized password changes.

Understanding CVE-2021-21352

This CVE highlights the use of insufficiently random values in the password reset feature of Anuko Time Tracker, making user tokens predictable and susceptible to brute force attacks.

What is CVE-2021-21352?

Anuko Time Tracker before version 1.19.24.5415 uses tokens based on system time for password resets, enabling attackers to guess and change user passwords, including those of system administrators.

The Impact of CVE-2021-21352

The vulnerability poses a medium-severity threat with a CVSS base score of 6.8, affecting confidentiality and posing a risk of unauthorized password changes.

Technical Details of CVE-2021-21352

The vulnerability arises from the use of predictable tokens in password resets in Anuko Time Tracker.

Vulnerability Description

Tokens used in the password reset functionality are based on system time, making them predictable and susceptible to brute force attacks.

Affected Systems and Versions

Anuko Time Tracker versions prior to 1.19.24.5415 are impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit the predictable tokens to guess user tokens and change passwords, including those of system administrators.

Mitigation and Prevention

To address CVE-2021-21352, immediate steps should be taken, and long-term security practices should be implemented.

Immediate Steps to Take

Users are advised to update Anuko Time Tracker to version 1.19.24.5415 or newer to mitigate the vulnerability.

Long-Term Security Practices

Implementing robust password policies, enabling multi-factor authentication, and staying vigilant for any unauthorized password changes can enhance security.

Patching and Updates

Ensure timely updates and patches for Anuko Time Tracker to stay protected against evolving security threats.