CVE-2021-28824 : Exploit Details and Defense Strategies

A security vulnerability has been identified in the Windows Installation component of TIBCO ActiveSpaces - Community Edition, Developer Edition, and Enterprise Edition.

Understanding CVE-2021-28824

This CVE, discovered by Will Dormann of CERT/CC, was made public on March 23, 2021.

What is CVE-2021-28824?

The vulnerability in the TIBCO ActiveSpaces installations allows a local attacker on certain Windows OS versions to insert malicious software and execute it with elevated privileges.

The Impact of CVE-2021-28824

This vulnerability could enable an attacker to gain full access to the Windows operating system at the privilege level of the affected component.

Technical Details of CVE-2021-28824

The CVSS v3.1 base score for this vulnerability is 8.8, classified as HIGH severity.

Vulnerability Description

The flaw arises from inadequate access restrictions in the installation, potentially leading to arbitrary code execution.

Affected Systems and Versions

TIBCO ActiveSpaces - Community Edition, Developer Edition, and Enterprise Edition versions 4.5.0 and below are impacted.

Exploitation Mechanism

The vulnerability can be exploited by a low privileged attacker with local access to the system.

Mitigation and Prevention

To address this issue, TIBCO Software Inc. has released updated versions for the affected components.

Immediate Steps to Take

Update TIBCO ActiveSpaces - Community Edition, Developer Edition, and Enterprise Edition to version 4.6.0 or higher.

Long-Term Security Practices

Regularly apply security patches, restrict access permissions, and monitor for any abnormal system behavior.

Patching and Updates

Stay informed about security advisories and promptly apply patches released by TIBCO.