CVE-2022-36035 : What You Need to Know
Learn about CVE-2022-36035 affecting Flux CLI in flux2 < 0.32.0, >= 0.21.0. Understand the impact, technical details, and mitigation steps to secure Kubernetes clusters.
Flux CLI Workload Injection vulnerability in flux2 versions < 0.32.0, >= 0.21.0 allows attackers to manipulate Flux deployment information in Kubernetes clusters. This article provides insights into the vulnerability, its impact, and mitigation strategies.
Understanding CVE-2022-36035
This section delves into the details of the CVE-2022-36035 vulnerability affecting the Flux CLI tool.
What is CVE-2022-36035?
CVE-2022-36035 refers to a vulnerability in Flux CLI, enabling the injection of arbitrary content into Kubernetes clusters due to improper handling of user input.
The Impact of CVE-2022-36035
The vulnerability poses a high severity risk, allowing attackers to replace genuine Flux deployment data with malicious content in the target cluster.
Technical Details of CVE-2022-36035
This section explores the technical aspects of the CVE-2022-36035 vulnerability, including its description, affected systems, and exploitation mechanism.
Vulnerability Description
The vulnerability arises from a path traversal issue, where attackers can manipulate user input to control the path and deploy arbitrary content in the target Kubernetes cluster.
Affected Systems and Versions
Flux2 versions below 0.32.0 and above or equal to 0.21.0 are impacted by this vulnerability.
Exploitation Mechanism
Attackers with high privileges can exploit this vulnerability locally, requiring user interaction to inject manipulated content.
Mitigation and Prevention
This section outlines the steps to mitigate the CVE-2022-36035 vulnerability in Flux CLI.
Immediate Steps to Take
Users are advised to upgrade Flux CLI to the latest version to patch the vulnerability and prevent further exploitation.
Long-Term Security Practices
Implementing isolated shell environments and ephemeral sessions while executing Flux CLI commands can enhance security by preventing persistent values from previous processes.
Patching and Updates
Regularly update and patch Flux CLI to stay protected against known vulnerabilities.