CVE-2023-44392 : Vulnerability Insights and Analysis

A critical arbitrary code execution vulnerability has been discovered when using a shared Kubernetes cluster in garden-io. This vulnerability allows attackers to execute malicious code on the users' machine.

Understanding CVE-2023-44392

This section provides an in-depth overview of the CVE-2023-44392 vulnerability.

What is CVE-2023-44392?

The CVE-2023-44392 vulnerability involves an insecure implementation of deserialization in the cryo library dependency of garden-io versions prior to

0.13.17

and

0.12.65

. Attackers can exploit this flaw to trigger remote code execution on the user's machine by storing malicious objects in Kubernetes

ConfigMap

resources.

The Impact of CVE-2023-44392

The impact of CVE-2023-44392 is significant as it allows attackers with access to the Kubernetes cluster to execute arbitrary code on the victim's machine. Users who invoke specific commands that utilize the cached results stored in the

ConfigMap

are at risk of exploitation.

Technical Details of CVE-2023-44392

This section delves into the technical aspects of the CVE-2023-44392 vulnerability.

Vulnerability Description

Garden utilizes cryo for serialization in Kubernetes

ConfigMap

resources, where the insecure deserialization implementation exposes the system to code injection attacks. By storing malicious objects and triggering deserialization, attackers can achieve arbitrary code execution.

Affected Systems and Versions

The vulnerability affects garden-io versions

<= 0.12.65

and

>= 0.13.0, < 0.13.17

. Users operating these versions are susceptible to the arbitrary code execution exploit.

Exploitation Mechanism

To exploit CVE-2023-44392, attackers need access to the targeted Kubernetes cluster and must coerce users to invoke commands that trigger the deserialization of malicious objects stored in the

ConfigMap

. This process leads to the execution of malicious code on the user's machine.

Mitigation and Prevention

Discover the steps to mitigate the CVE-2023-44392 vulnerability and prevent potential security risks.

Immediate Steps to Take

Users are advised to update their garden-io installations to version

>= 0.13.17

or

>= 0.12.65

to patch the vulnerability. It is crucial to apply updates promptly to prevent exploitation.

Long-Term Security Practices

Practicing good security hygiene, such as regularly updating software, monitoring Kubernetes clusters for unauthorized access, and restricting user permissions, can enhance overall system security.

Patching and Updates

Regularly check for security updates and patches for garden-io to ensure that the latest security enhancements are in place to safeguard against potential vulnerabilities.