CVE-2021-28829 : Exploit Details and Defense Strategies

The Administration GUI component of TIBCO Software Inc.'s TIBCO Administrator - Enterprise Edition, TIBCO Administrator - Enterprise Edition Distribution for TIBCO Silver Fabric, and TIBCO Administrator - Enterprise Edition for z/Linux contains a vulnerability that allows a low privileged attacker to execute a persistent CSV injection attack.

Understanding CVE-2021-28829

This CVE discloses a vulnerability in TIBCO Administrator, affecting specific versions of TIBCO products.

What is CVE-2021-28829?

The vulnerability allows an attacker with network access to perform a persistent CSV injection attack. Human interaction, other than the attacker, is required for a successful attack.

The Impact of CVE-2021-28829

Successful exploitation provides the ability to infect end-users with malware, gain control over their computers, steal sensitive information, and manipulate data from the affected system.

Technical Details of CVE-2021-28829

The CVSS v3.1 base score is 6.5, indicating a medium severity issue with low attack complexity and privilege requirements. The attack vector is network-based and requires user interaction.

Vulnerability Description

The vulnerability is due to an easily exploitable flaw in the Administration GUI component of affected TIBCO products.

Affected Systems and Versions

TIBCO Administrator - Enterprise Edition versions 5.10.2 and below
TIBCO Administrator - Enterprise Edition versions 5.11.0 and 5.11.1
TIBCO Administrator - Enterprise Edition Distribution for TIBCO Silver Fabric versions 5.10.2 and below
TIBCO Administrator - Enterprise Edition Distribution for TIBCO Silver Fabric versions 5.11.0 and 5.11.1
TIBCO Administrator - Enterprise Edition for z/Linux versions 5.10.2 and below
TIBCO Administrator - Enterprise Edition for z/Linux versions 5.11.0 and 5.11.1

Exploitation Mechanism

The attacker needs network access to the affected system to exploit this vulnerability, requiring a human interaction step.

Mitigation and Prevention

It is crucial to apply the necessary patches and follow security best practices for protecting systems from such vulnerabilities.

Immediate Steps to Take

TIBCO has released updated versions of the affected components to address this issue.

Long-Term Security Practices

Regularly update TIBCO products to the latest versions and ensure security configurations are in place.

Patching and Updates

TIBCO Administrator - Enterprise Edition versions 5.10.2 and below update to version 5.10.3 or higher
TIBCO Administrator - Enterprise Edition versions 5.11.0 and 5.11.1 update to version 5.11.2 or higher
TIBCO Administrator - Enterprise Edition Distribution for TIBCO Silver Fabric versions 5.10.2 and below update to version 5.10.3 or higher
TIBCO Administrator - Enterprise Edition Distribution for TIBCO Silver Fabric versions 5.11.0 and 5.11.1 update to version 5.11.2 or higher
TIBCO Administrator - Enterprise Edition for z/Linux versions 5.10.2 and below update to version 5.10.3 or higher
TIBCO Administrator - Enterprise Edition for z/Linux versions 5.11.0 and 5.11.1 update to version 5.11.2 or higher