CVE-2021-23732 : Vulnerability Insights and Analysis

This article provides an overview of CVE-2021-23732, a vulnerability impacting all versions of the docker-cli-js package. Users with control over the command parameter of the Docker.command method can potentially execute arbitrary OS commands on the host system.

Understanding CVE-2021-23732

CVE-2021-23732 is a critical vulnerability that allows for arbitrary code execution on systems running affected versions of the docker-cli-js package.

What is CVE-2021-23732?

CVE-2021-23732 affects the docker-cli-js package, enabling users to execute arbitrary OS commands if they can partially control the command parameter of the Docker.command method.

The Impact of CVE-2021-23732

The impact of this vulnerability is rated as critical, with a high severity base score and significant confidentiality, integrity, and availability impacts. It requires no privileges and has a high attack complexity.

Technical Details of CVE-2021-23732

CVE-2021-23732 has the following technical details:

Vulnerability Description

The vulnerability allows for arbitrary code execution when users can influence the command parameter of the Docker.command method.

Affected Systems and Versions

All versions of the docker-cli-js package are impacted by this vulnerability.

Exploitation Mechanism

By manipulating the command parameter of Docker.command, attackers can execute malicious OS commands on the host system.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-23732, consider the following steps:

Immediate Steps to Take

Update the docker-cli-js package to the latest non-vulnerable version.
Restrict access to systems running the affected package.

Long-Term Security Practices

Implement least privilege access controls to limit command parameter manipulation.
Regularly monitor and audit commands executed on host systems.

Patching and Updates

Stay informed about security advisories for docker-cli-js and apply patches promptly to address known vulnerabilities.