CVE-2018-18812 : Vulnerability Insights and Analysis

TIBCO Software Inc.'s TIBCO Spotfire Analytics Platform for AWS Marketplace and TIBCO Spotfire Server have identified a potential vulnerability in the Spotfire Library component that could allow users with read-only access to modify files stored in the Spotfire Library when external storage is used. This CVE affects specific versions of the software.

Understanding CVE-2018-18812

This CVE highlights a security issue in TIBCO Spotfire products that could compromise the integrity of analysis results by enabling unauthorized modifications to the Spotfire Library.

What is CVE-2018-18812?

The vulnerability in TIBCO Spotfire products allows users with read-only access to potentially alter files in the Spotfire Library, specifically when external storage is utilized. The impacted versions include TIBCO Spotfire Analytics Platform for AWS Marketplace versions 10.0.0 and earlier, as well as TIBCO Spotfire Server versions 7.10.1, 7.11.0, 7.11.1, 7.12.0, 7.13.0, 7.14.0, and 10.0.0.

The Impact of CVE-2018-18812

The vulnerability poses a medium severity risk with a CVSS base score of 6.5. The potential impact includes unauthorized modifications to files stored in the Spotfire Library, which could compromise the integrity of analysis results.

Technical Details of CVE-2018-18812

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability in TIBCO Spotfire products allows users with read-only access to modify files in the Spotfire Library when external storage is configured.

Affected Systems and Versions

TIBCO Spotfire Analytics Platform for AWS Marketplace versions up to and including 10.0.0
TIBCO Spotfire Server versions up to and including 7.10.1, 7.11.0, 7.11.1, 7.12.0, 7.13.0, 7.14.0, and 10.0.0

Exploitation Mechanism

The vulnerability could be exploited by users with read-only access to the Spotfire Library, particularly when external storage is in use.

Mitigation and Prevention

To address CVE-2018-18812, follow these mitigation steps:

Immediate Steps to Take

Update TIBCO Spotfire Analytics Platform for AWS Marketplace to version 10.0.1 or higher
Update TIBCO Spotfire Server versions 7.10.1 and below to version 7.10.2 or higher
Update TIBCO Spotfire Server versions 7.11.0 and 7.11.1 to version 7.11.2 or higher
Update TIBCO Spotfire Server versions 7.12.0, 7.13.0, 7.14.0, and 10.0.0 to version 10.0.1 or higher

Long-Term Security Practices

Regularly monitor and review access controls for the Spotfire Library
Implement secure configurations for external storage usage

Patching and Updates

TIBCO has released updated versions of the affected components to address the vulnerability. Additionally, server administrators are advised to run the "check-external-library" command line tool to ensure the consistency of external storage.