CVE-2022-23709 : Exploit Details and Defense Strategies

A flaw was discovered in Kibana that allows users with Read access to the Uptime feature to modify alerting rules, potentially leading to the creation of new rules or disabling existing ones.

Understanding CVE-2022-23709

This CVE relates to a vulnerability in Kibana, specifically impacting versions 7.7.0 through 7.17.0, and 8.0.0.

What is CVE-2022-23709?

The vulnerability allows users with Read access to the Uptime feature in Kibana to modify alerting rules, including creating new rules or disabling existing ones. However, any new or modified rules are not enabled, and users cannot modify alerting connectors.

The Impact of CVE-2022-23709

Users with Read access could potentially disrupt alerting mechanisms by disabling existing rules, affecting the monitoring and alerting capabilities of Kibana.

Technical Details of CVE-2022-23709

This section covers specific technical details of the vulnerability.

Vulnerability Description

The flaw in Kibana allows Read users to interfere with alerting rules but does not enable any new or modified rules.

Affected Systems and Versions

Versions 7.7.0 through 7.17.0, and 8.0.0 of Kibana are affected by this vulnerability.

Exploitation Mechanism

Users with Read access to the Uptime feature can exploit this vulnerability to manipulate alerting rules without enabling them.

Mitigation and Prevention

To address CVE-2022-23709, consider the following mitigation strategies.

Immediate Steps to Take

Update Kibana to a patched version that addresses the vulnerability.
Limit Read access to the Uptime feature to authorized users.

Long-Term Security Practices

Regularly monitor and review alerting rules within Kibana.
Implement a least privilege access control model to restrict unnecessary access.

Patching and Updates

Ensure timely application of security patches and updates to Kibana to prevent exploitation of known vulnerabilities.