CVE-2019-20524 : Exploit Details and Defense Strategies

A potential vulnerability has been discovered in ilchCMS 2.1.23 through the Banner parameter in the index.php/partner/index section, potentially allowing for cross-site scripting (XSS) attacks.

Understanding CVE-2019-20524

This CVE identifies a vulnerability in ilchCMS 2.1.23 that could lead to XSS attacks.

What is CVE-2019-20524?

CVE-2019-20524 is a vulnerability in ilchCMS 2.1.23 that enables cross-site scripting (XSS) through the Banner parameter in the index.php/partner/index section.

The Impact of CVE-2019-20524

The vulnerability has the following impact based on CVSS:3.0 metrics:

Attack Complexity: Low
Availability Impact: None
Confidentiality Impact: High
Integrity Impact: None
Privileges Required: None
Scope: Changed
User Interaction: Required

Technical Details of CVE-2019-20524

This section provides more technical insights into the vulnerability.

Vulnerability Description

ilchCMS 2.1.23 allows XSS via the index.php/partner/index Banner parameter.

Affected Systems and Versions

Affected Version: 2.1.23
Affected Parameter: Banner in index.php/partner/index

Exploitation Mechanism

The vulnerability can be exploited by injecting malicious scripts into the Banner parameter, leading to XSS attacks.

Mitigation and Prevention

Protecting systems from CVE-2019-20524 is crucial for maintaining security.

Immediate Steps to Take

Disable or sanitize user inputs to prevent script injection.
Implement Content Security Policy (CSP) to mitigate XSS risks.

Long-Term Security Practices

Regularly update ilchCMS to the latest secure version.
Conduct security audits and penetration testing to identify vulnerabilities.

Patching and Updates

Apply patches provided by ilchCMS promptly to address the vulnerability.