CVE-2023-0923 : Security Advisory and Response

This CVE, assigned by Red Hat, is related to a vulnerability that allows for file contents disclosure due to missing authorization in the Kubernetes service for notebooks in RHODS. The CVE was published on September 15, 2023.

Understanding CVE-2023-0923

This section provides an overview of what CVE-2023-0923 entails, its impact, technical details, and mitigation strategies.

What is CVE-2023-0923?

CVE-2023-0923 is a vulnerability in the Kubernetes service for notebooks in Red Hat OpenShift Data Science (RHODS) that fails to prevent pods from other namespaces and applications from accessing the Jupyter API, leading to potential file content exposure and related security risks.

The Impact of CVE-2023-0923

The impact of this vulnerability is rated as important according to Red Hat severity ratings. With a CVSSv3 base score of 8 (high severity), the vulnerability has a significant impact on confidentiality, integrity, and availability of the affected systems.

Technical Details of CVE-2023-0923

This section delves into the technical aspects of CVE-2023-0923, including vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The flaw in the Kubernetes service for RHODS notebooks allows unauthorized access to the Jupyter API, enabling potential exposure of file contents and other sensitive information.

Affected Systems and Versions

The vulnerability affects the following products:

Product: odh-notebook-controller-container (Affected)
Vendor: Red Hat
Product: RHODS-1.22-RHEL-8
Version: v1.22.1-3
CPE: cpe:/a:redhat:openshift_data_science:1.22::el8

Exploitation Mechanism

The vulnerability in the Kubernetes service can be exploited by pods from other namespaces and applications to make requests to the Jupyter API, leading to unauthorized file access and potential data breaches.

Mitigation and Prevention

To address CVE-2023-0923 and reduce the associated security risks, organizations and users should consider the following mitigation strategies.

Immediate Steps to Take

Implement access controls to restrict unauthorized access to the Jupyter API.
Monitor network traffic for any suspicious activity indicating unauthorized file access.

Long-Term Security Practices

Regularly update and patch the affected systems and applications.
Conduct security assessments and penetration testing to identify and remediate similar vulnerabilities.

Patching and Updates

Apply the necessary patches and updates provided by Red Hat to address the vulnerability and enhance the security posture of the affected systems.