CVE-2023-22647 : Vulnerability Insights and Analysis

This CVE record was published on June 1, 2023, by SUSE. It discloses an Improper Privilege Management vulnerability in SUSE Rancher, impacting versions ranging from >= 2.6.0 to < 2.6.13 and >= 2.7.0 to < 2.7.4. The vulnerability allowed standard users to exploit their permissions to manipulate Kubernetes secrets in the local cluster, potentially leading to unauthorized access to service account tokens.

Understanding CVE-2023-22647

This section delves into the details of CVE-2023-22647, exploring the vulnerability, its impact, affected systems, exploitation mechanism, and mitigation strategies.

What is CVE-2023-22647?

The CVE-2023-22647 vulnerability in SUSE Rancher enables standard users to abuse their permissions to modify Kubernetes secrets, potentially resulting in unauthorized access to service account tokens within the local cluster.

The Impact of CVE-2023-22647

The impact of CVE-2023-22647 is classified as critical, with a CVSS v3.1 base score of 9.9. The vulnerability's high severity stems from its potential to compromise confidentiality, integrity, and availability, making it crucial to address promptly to prevent unauthorized access.

Technical Details of CVE-2023-22647

In this section, we dive into the technical aspects of CVE-2023-22647, exploring the vulnerability description, affected systems, and the exploitation mechanism.

Vulnerability Description

The Improper Privilege Management vulnerability in SUSE Rancher could be exploited by standard users to manipulate Kubernetes secrets in the local cluster, potentially leading to unauthorized access to service account tokens.

Affected Systems and Versions

SUSE Rancher versions from >= 2.6.0 to < 2.6.13 and >= 2.7.0 to < 2.7.4 are affected by CVE-2023-22647, highlighting the importance of patching vulnerable systems promptly.

Exploitation Mechanism

Standard users leverage their existing permissions to manipulate Kubernetes secrets, resulting in potential unauthorized access to service account tokens within the local cluster.

Mitigation and Prevention

Understanding how to mitigate and prevent vulnerabilities like CVE-2023-22647 is crucial for enhancing system security and minimizing risks.

Immediate Steps to Take

To address CVE-2023-22647, it is recommended to apply patches or updates provided by SUSE promptly. Additionally, restricting user permissions and monitoring Kubernetes secrets access can help mitigate the risk.

Long-Term Security Practices

Establishing robust privilege management policies, conducting regular security audits, and enhancing user awareness about secure practices can contribute to long-term security resilience against similar vulnerabilities.

Patching and Updates

Regularly updating SUSE Rancher to the latest secure versions and staying informed about security advisories and patches from trusted sources are essential practices to mitigate vulnerabilities like CVE-2023-22647.