CVE-2020-5418 : Security Advisory and Response
Learn about CVE-2020-5418 impacting Cloud Foundry CAPI versions. Find out the vulnerability details, affected systems, mitigation steps, and necessary updates to prevent unauthorized access.
Cloud Foundry CAPI (Cloud Controller) versions prior to 1.98.0 allow authenticated users to list all droplets in all spaces without the necessary roles.
Understanding CVE-2020-5418
Cloud Controller vulnerability impacting Cloud Foundry CAPI versions.
What is CVE-2020-5418?
The vulnerability allows authenticated users with limited permissions to view all droplets in all spaces, contrary to the intended access restrictions.
The Impact of CVE-2020-5418
- CVSS Base Score: 3.1 (Low)
- Attack Vector: Network
- Attack Complexity: High
- Confidentiality Impact: Low
- Integrity Impact: None
- Privileges Required: Low
- User Interaction: None
- Scope: Unchanged
- Vector String: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
- Availability Impact: None
- CWE ID: CWE-863 (Incorrect Authorization)
Technical Details of CVE-2020-5418
Cloud Foundry CAPI vulnerability details.
Vulnerability Description
The issue in Cloud Controller allows users with limited permissions to view all droplets in all spaces.
Affected Systems and Versions
- CAPI: All versions prior to 1.98.0
- CF Deployment: All versions prior to 13.17.0
Exploitation Mechanism
The vulnerability can be exploited by authenticated users with the "cloud_controller.read" scope but no roles in any spaces.
Mitigation and Prevention
Protecting systems from CVE-2020-5418.
Immediate Steps to Take
- Update Cloud Foundry CAPI to version 1.98.0 or higher.
- Apply necessary access controls and roles to users.
Long-Term Security Practices
- Regularly review and update user permissions.
- Conduct security training for users to understand access rights.
Patching and Updates
- Cloud Foundry users should apply patches promptly to address this vulnerability.