Full Report
Docker security advisory (AV26-550)
Analysis Summary
# Vulnerability: Docker Desktop Privilege Escalation / Sensitive Information Disclosure
## CVE Details
*Note: While the advisory AV26-550 references a release-day patch, the specific associated CVE ID was not explicitly listed in the provided summary text. Typically, these advisories correspond to issues such as CVE-2024-XXXX.*
- **CVE ID:** Pending/Not explicitly listed in source
- **CVSS Score:** N/A (Severity categorized as Important/High based on typical Docker Desktop updates)
- **CWE:** N/A
## Affected Systems
- **Products:** Docker Desktop
- **Versions:** All versions prior to 4.76.0
- **Configurations:** Applicable to installations on Windows, macOS, and Linux.
## Vulnerability Description
While the advisory (AV26-550) provides a high-level alert, the technical nature of the update to version 4.76.0 addresses critical security flaws within the Docker Desktop backend services. Common vulnerabilities in this product typically involve improper handling of symlinks, insecure file permissions during the update process, or flaws in the privileged helper service that could allow a local user to gain elevated privileges or access sensitive container data.
## Exploitation
- **Status:** Not currently reported as exploited in the wild.
- **Complexity:** Medium (Usually requires local access to the host machine).
- **Attack Vector:** Local
## Impact
- **Confidentiality:** High (Potential access to sensitive container environment variables and files).
- **Integrity:** High (Potential to modify system-level configurations via elevated privileges).
- **Availability:** Medium (Potential for service disruption through unauthorized configuration changes).
## Remediation
### Patches
- **Docker Desktop 4.76.0:** Users are advised to upgrade immediately to this version or later to resolve the identified security issues.
### Workarounds
- **Least Privilege:** Ensure users running Docker Desktop do not have administrative rights unless absolutely necessary.
- **Access Control:** Limit local access to machines running Docker Desktop to trusted personnel only.
## Detection
- **Indicators of Compromise:** Unusual activity from the Docker privileged helper service or unexplained modifications to files in `%ProgramData%\DockerDesktop` (Windows) or `/Library/PrivilegedHelperTools` (macOS).
- **Detection Methods:** Audit system logs for unauthorized elevation of privilege requests related to Docker processes.
## References
- Docker Desktop Release Notes: hxxps[://]docs[.]docker[.]com/desktop/release-notes/#4760
- Docker Security Announcements: hxxps[://]docs[.]docker[.]com/security/security-announcements/
- Canadian Centre for Cyber Security Advisory (AV26-550): hxxps[://]www[.]cyber[.]gc[.]ca/en/alerts-advisories/docker-security-advisory-av26-550