CVE-2019-11819 : Exploit Details and Defense Strategies

Alkacon OpenCMS v10.5.4 and earlier versions are vulnerable to CSV (Excel Macro) Injection through specific fields.

Understanding CVE-2019-11819

The module New User in Alkacon OpenCMS is the entry point for the vulnerability.

What is CVE-2019-11819?

The vulnerability allows attackers to inject CSV (Excel Macro) code through the First Name or Last Name fields in the New User module.

The Impact of CVE-2019-11819

Attackers can execute malicious Excel Macros through user input fields.
This could lead to unauthorized access, data manipulation, or further exploitation of the system.

Technical Details of CVE-2019-11819

The technical aspects of the vulnerability are outlined below.

Vulnerability Description

Alkacon OpenCMS v10.5.4 and earlier versions are prone to CSV (Excel Macro) Injection.

Affected Systems and Versions

Product: Alkacon OpenCMS
Versions: v10.5.4 and prior

Exploitation Mechanism

Attackers exploit the vulnerability by injecting CSV (Excel Macro) code through the First Name or Last Name fields.

Mitigation and Prevention

Protecting systems from CVE-2019-11819 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Alkacon OpenCMS to a patched version that addresses the CSV Injection vulnerability.
Educate users to avoid entering malicious content in input fields.

Long-Term Security Practices

Implement input validation mechanisms to sanitize user inputs effectively.
Regularly monitor and audit user inputs for any suspicious content.

Patching and Updates

Apply security patches provided by Alkacon to fix the CSV Injection vulnerability in OpenCMS.