CVE-2022-38730 : What You Need to Know

Docker Desktop for Windows before version 4.6 is vulnerable to a security issue that allows attackers to overwrite any file by exploiting a symlink vulnerability through a TOCTOU race condition.

Understanding CVE-2022-38730

This CVE details a specific vulnerability in Docker Desktop for Windows version 4.6 and below.

What is CVE-2022-38730?

CVE-2022-38730 allows attackers to overwrite any file through a specific API by controlling a certain field, leading to potential security breaches.

The Impact of CVE-2022-38730

If exploited, this vulnerability can result in unauthorized file modifications and potential privilege escalation on affected systems.

Technical Details of CVE-2022-38730

This section dives into the specifics of the vulnerability.

Vulnerability Description

The vulnerability exists in Docker Desktop for Windows versions prior to 4.6, allowing attackers to manipulate a specific field and exploit a symlink vulnerability through a TOCTOU race condition.

Affected Systems and Versions

All versions of Docker Desktop for Windows before 4.6 are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by controlling the data-root field inside the DaemonJSON field in the WindowsContainerStartRequest class.

Mitigation and Prevention

To secure systems from CVE-2022-38730, follow these practices.

Immediate Steps to Take

Upgrade Docker Desktop for Windows to version 4.6 or later to mitigate the vulnerability.
Monitor and restrict access to sensitive files and directories within the Docker environment.

Long-Term Security Practices

Implement the principle of least privilege to limit the capabilities of user accounts within Docker Desktop.
Regularly review and update Docker security configurations to align with best practices.

Patching and Updates

Stay informed about security updates from Docker and promptly apply patches to ensure the latest security enhancements.