CVE-2021-28819 : Exploit Details and Defense Strategies

TIBCO Software Inc.'s TIBCO FTL - Community Edition, Developer Edition, and Enterprise Edition are affected by a vulnerability in the Windows Installation component, potentially allowing a local attacker to execute malicious software with elevated privileges. The vulnerability, with a CVSS base score of 8.8, impacts versions 6.5.0 and below.

Understanding CVE-2021-28819

This CVE refers to a security flaw in TIBCO FTL Windows Platform Installation.

What is CVE-2021-28819?

The vulnerability in the Windows Installation component of TIBCO FTL products allows a low privileged attacker with local access to insert malicious software, granting them elevated privileges on some versions of the Windows OS.

The Impact of CVE-2021-28819

The vulnerability poses a high risk as it enables an attacker to gain full access to the Windows operating system at the privilege level of the affected component.

Technical Details of CVE-2021-28819

The vulnerability is characterized by a CVSS V3.1 base score of 8.8 with low attack complexity, local attack vector, and high impacts on confidentiality, integrity, and availability. The privileges required are low, and the scope is changed with no user interaction.

Vulnerability Description

The flaw arises from inadequate access restrictions on certain files or folders during installation.

Affected Systems and Versions

TIBCO FTL - Community Edition: versions 6.5.0 and below TIBCO FTL - Developer Edition: versions 6.5.0 and below TIBCO FTL - Enterprise Edition: versions 6.5.0 and below

Exploitation Mechanism

A local attacker can exploit the vulnerability to insert and execute malicious software, leveraging the component's elevated privileges.

Mitigation and Prevention

Immediate action and long-term security measures are crucial to address the CVE's security risks.

Immediate Steps to Take

Upgrade to TIBCO FTL versions 6.6.0 or higher to mitigate the vulnerability.

Long-Term Security Practices

Regularly update and patch the affected components to prevent similar security issues in the future.

Patching and Updates

TIBCO has released updated versions of the affected components to resolve the vulnerability.