CVE-2020-27838 : Security Advisory and Response
Learn about CVE-2020-27838, a Keycloak flaw allowing unauthorized access to client data without authentication, posing a risk to data confidentiality. Find mitigation steps and updates here.
A flaw in Keycloak versions prior to 13.0.0 allows unauthorized access to client information, posing a risk to data confidentiality.
Understanding CVE-2020-27838
Keycloak vulnerability impacting versions before 13.0.0.
What is CVE-2020-27838?
Keycloak flaw enables access to PUBLIC client data without authentication, potentially compromising data confidentiality.
The Impact of CVE-2020-27838
- Risk to data confidentiality due to unauthorized access to client information.
Technical Details of CVE-2020-27838
Key technical aspects of the vulnerability.
Vulnerability Description
- Client registration endpoint flaw in Keycloak versions prior to 13.0.0.
Affected Systems and Versions
- Product: Keycloak
- Vendor: N/A
- Affected Version: Keycloak 13.0.0
Exploitation Mechanism
- Unauthorized access to PUBLIC client data without authentication.
Mitigation and Prevention
Protective measures against CVE-2020-27838.
Immediate Steps to Take
- Update Keycloak to version 13.0.0 or later.
- Monitor client information access closely.
Long-Term Security Practices
- Regularly review and update access control policies.
- Conduct security audits to identify similar vulnerabilities.
Patching and Updates
- Apply patches and updates provided by Keycloak to address the vulnerability.