CVE-2018-5431 Explained : Impact and Mitigation

TIBCO Software Inc.'s TIBCO JasperReports Server, TIBCO JasperReports Server Community Edition, TIBCO JasperReports Server for ActiveMatrix BPM, TIBCO Jaspersoft for AWS with Multi-Tenancy, and TIBCO Jaspersoft Reporting and Analytics for AWS have a vulnerability in their domain designer component that could lead to persisted cross-site scripting (XSS) attacks.

Understanding CVE-2018-5431

This CVE involves a vulnerability in multiple TIBCO products that could allow attackers to execute XSS attacks under specific conditions.

What is CVE-2018-5431?

The vulnerability in the domain designer component of various TIBCO products may enable attackers to conduct XSS attacks if default permissions are not configured.

The Impact of CVE-2018-5431

The vulnerability poses a medium severity risk with a CVSS base score of 6.3. It could potentially lead to high confidentiality impact and low integrity impact.

Technical Details of CVE-2018-5431

The technical details of the vulnerability are as follows:

Vulnerability Description

The domain designer component in the affected TIBCO products is susceptible to persisted XSS attacks.

Affected Systems and Versions

The following products and versions are impacted:

TIBCO JasperReports Server versions 6.2.4, 6.3.0, 6.3.2, 6.3.3, 6.4.0, 6.4.2
TIBCO JasperReports Server Community Edition version 6.4.2
TIBCO JasperReports Server for ActiveMatrix BPM version 6.4.2
TIBCO Jaspersoft for AWS with Multi-Tenancy version 6.4.2
TIBCO Jaspersoft Reporting and Analytics for AWS version 6.4.2

Exploitation Mechanism

The vulnerability can be exploited through persisted cross-site scripting (XSS) attacks when default permissions are not in place.

Mitigation and Prevention

To address CVE-2018-5431, follow these steps:

Immediate Steps to Take

Update TIBCO JasperReports Server versions 6.2.4 and below to version 6.2.5 or higher
Update TIBCO JasperReports Server versions 6.3.0, 6.3.2, and 6.3.3 to version 6.3.4 or higher
Update TIBCO JasperReports Server versions 6.4.0 and 6.4.2 to version 6.4.3 or higher
Update TIBCO JasperReports Server Community Edition, TIBCO JasperReports Server for ActiveMatrix BPM, TIBCO Jaspersoft for AWS with Multi-Tenancy, and TIBCO Jaspersoft Reporting and Analytics for AWS to version 6.4.3 or higher

Long-Term Security Practices

Regularly review and update permissions configurations
Conduct security assessments and audits periodically

Patching and Updates

Ensure all affected systems are promptly updated to the recommended software versions provided by TIBCO.