CVE-2021-42544 : Exploit Details and Defense Strategies

This CVE involves a vulnerability in TopEase platform versions <= 7.1.27 that allows unauthenticated attackers to perform multiple login attempts, potentially leading to privilege escalation.

Understanding CVE-2021-42544

This CVE pertains to a lack of rate limiting in authentication on the TopEase platform.

What is CVE-2021-42544?

The CVE describes a scenario where unauthenticated remote attackers can exploit a missing rate limiting feature in the login form of TopEase, potentially gaining unauthorized privileges.

The Impact of CVE-2021-42544

This vulnerability has a high base severity score (7.5/10) with a high impact on confidentiality. Attackers could attempt multiple logins to gain unauthorized access.

Technical Details of CVE-2021-42544

This section delves into specific technical aspects of the CVE.

Vulnerability Description

The vulnerability lies in the absence of rate limiting in TopEase version <= 7.1.27, enabling attackers to perform numerous login attempts.

Affected Systems and Versions

Product: TopEase
Vendor: Business-DNA Solutions GmbH
Versions affected: <= 7.1.28

Exploitation Mechanism

Attackers can exploit this vulnerability by repeatedly attempting to log in, potentially gaining unauthorized access through multiple login attempts.

Mitigation and Prevention

Learn how to address and prevent this security issue.

Immediate Steps to Take

Apply security patches promptly to fix the rate limiting issue.
Monitor login activity for suspicious patterns like multiple failed attempts.

Long-Term Security Practices

Implement account lockout policies after repeated failed login attempts.
Regularly update your TopEase platform to ensure you have the latest security enhancements.

Patching and Updates

Ensure to update TopEase to versions beyond 7.1.28 to mitigate the rate limiting vulnerability.