CVE-2022-21953 : Security Advisory and Response

This article provides detailed information about CVE-2022-21953, a Missing Authorization vulnerability in SUSE Rancher that allows authenticated users to create an unauthorized shell pod and gain kubectl access in the local cluster.

Understanding CVE-2022-21953

In this section, we will discuss what CVE-2022-21953 is, its impact, technical details, and mitigation strategies.

What is CVE-2022-21953?

CVE-2022-21953 is a Missing Authorization vulnerability in SUSE Rancher that enables authenticated users to create an unauthorized shell pod and gain kubectl access in the local cluster.

The Impact of CVE-2022-21953

The impact of this vulnerability is considered high with a base score of 7.4. It can lead to unauthorized access and potential misuse of system resources.

Technical Details of CVE-2022-21953

In this section, we will delve into the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability allows authenticated users to exploit SUSE Rancher versions prior to 2.5.17, 2.6.10, and 2.7.1 to create unauthorized shell pods and gain kubectl access.

Affected Systems and Versions

SUSE Rancher versions prior to 2.5.17, 2.6.10, and 2.7.1 are affected by this vulnerability.

Exploitation Mechanism

Authenticated users can exploit this vulnerability to create unauthorized shell pods and gain kubectl access within the local cluster.

Mitigation and Prevention

To mitigate the risks associated with CVE-2022-21953, it is crucial to take immediate steps and implement long-term security practices.

Immediate Steps to Take

Users are advised to update SUSE Rancher to versions 2.5.17, 2.6.10, or 2.7.1 to mitigate the vulnerability. Additionally, monitoring for any unauthorized activity is recommended.

Long-Term Security Practices

Implementing strict access controls, regular security audits, and employee training on security best practices can enhance overall system security.

Patching and Updates

Regularly applying security patches and updates for SUSE Rancher is essential to address known vulnerabilities and ensure system security.