CVE-2019-16723 : Security Advisory and Response

Cacti versions up to 1.2.6 allow authenticated users to bypass authorization checks, potentially leading to unauthorized access to graph views.

Understanding CVE-2019-16723

This CVE involves a vulnerability in Cacti that enables authenticated users to evade authorization checks when attempting to view a graph.

What is CVE-2019-16723?

In Cacti versions up to 1.2.6, authenticated users can bypass authorization checks by manipulating parameters in a direct request to the graph_json.php file.

The Impact of CVE-2019-16723

This vulnerability could allow unauthorized users to view sensitive graph data, potentially leading to unauthorized access and data exposure.

Technical Details of CVE-2019-16723

This section provides more in-depth technical information about the CVE.

Vulnerability Description

Users authenticated in Cacti versions up to 1.2.6 can evade authorization checks by modifying parameters in a direct request to the graph_json.php file.

Affected Systems and Versions

Product: Cacti
Vendor: N/A
Versions affected: Up to 1.2.6

Exploitation Mechanism

The vulnerability can be exploited by making a direct request to the graph_json.php file and altering the local_graph_id parameter.

Mitigation and Prevention

Protecting systems from CVE-2019-16723 requires immediate actions and long-term security practices.

Immediate Steps to Take

Upgrade Cacti to version 1.2.7 or later to mitigate the vulnerability.
Monitor access to sensitive graph data and investigate any unauthorized access attempts.

Long-Term Security Practices

Regularly update and patch Cacti installations to address security vulnerabilities promptly.
Implement strong authentication mechanisms to prevent unauthorized access to sensitive information.

Patching and Updates

Apply security patches provided by Cacti promptly to address known vulnerabilities and enhance system security.