CVE-2018-18816 Explained : Impact and Mitigation

TIBCO JasperReports Persistent Cross Site Scripting Vulnerability

Understanding CVE-2018-18816

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 been found to have a persistent cross-site scripting vulnerability in their repository component.

What is CVE-2018-18816?

The vulnerability affects various versions of TIBCO JasperReports Server and related products, allowing a malicious actor to execute cross-site scripting attacks.

The Impact of CVE-2018-18816

The vulnerability could potentially allow an attacker to gain full access to the web interface of the affected components.

Technical Details of CVE-2018-18816

Vulnerability Description

The repository component of TIBCO JasperReports Server and related products contains a persistent cross-site scripting vulnerability.

Affected Systems and Versions

TIBCO JasperReports Server: versions up to and including 6.3.4, 6.4.0, 6.4.1, 6.4.2, 6.4.3, and 7.1.0
TIBCO JasperReports Server Community Edition: versions up to and including 7.1.0
TIBCO JasperReports Server for ActiveMatrix BPM: versions up to and including 6.4.3
TIBCO Jaspersoft for AWS with Multi-Tenancy: versions up to and including 7.1.0
TIBCO Jaspersoft Reporting and Analytics for AWS: versions up to and including 7.1.0

Exploitation Mechanism

The vulnerability can be exploited through a network-based attack with low complexity, requiring user interaction.

Mitigation and Prevention

Immediate Steps to Take

Update TIBCO JasperReports Server versions 6.3.4 and below to version 6.3.5 or higher
Update TIBCO JasperReports Server versions 6.4.0, 6.4.1, 6.4.2, and 6.4.3 to version 6.4.4 or higher
Update TIBCO JasperReports Server version 7.1.0 to version 7.1.1 or higher
Update TIBCO JasperReports Server Community Edition versions 7.1.0 and below to version 7.1.1 or higher
Update TIBCO JasperReports Server for ActiveMatrix BPM versions 6.4.3 and below to version 6.4.4 or higher
Update TIBCO Jaspersoft for AWS with Multi-Tenancy versions 7.1.0 and below to version 7.1.1 or higher
Update TIBCO Jaspersoft Reporting and Analytics for AWS versions 7.1.0 and below to version 7.1.1 or higher

Long-Term Security Practices

Regularly update software to the latest versions to patch known vulnerabilities
Implement web application firewalls and security best practices

Patching and Updates

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