CVE-2019-0212 : Vulnerability Insights and Analysis
Learn about CVE-2019-0212 affecting Apache HBase versions 2.0.0-2.0.4 and 2.1.0-2.1.3. Understand the impact, technical details, and mitigation steps for this authorization vulnerability.
Apache HBase versions 2.0.0-2.0.4 and 2.1.0-2.1.3 had an authorization issue affecting users of the HBase REST server. This problem occurred when requests were executed with the server's permissions instead of the end-user's permissions.
Understanding CVE-2019-0212
This CVE entry highlights a vulnerability in Apache HBase versions 2.0.0-2.0.4 and 2.1.0-2.1.3 related to incorrect user authorization in the HBase REST server.
What is CVE-2019-0212?
In Apache HBase versions 2.0.0-2.0.4 and 2.1.0-2.1.3, requests to the HBase REST server were executed with the server's permissions, not the end-user's, when certain authentication configurations were in place.
The Impact of CVE-2019-0212
- Users of the HBase REST server could have their requests executed with the server's permissions, potentially leading to unauthorized access or actions.
Technical Details of CVE-2019-0212
This section delves into the technical aspects of the vulnerability.
Vulnerability Description
The incorrect application of authorization in Apache HBase versions 2.0.0-2.0.4 and 2.1.0-2.1.3 allowed requests to the HBase REST server to be executed with the server's permissions instead of the end-user's.
Affected Systems and Versions
- Product: Apache HBase
- Vendor: Apache
- Affected Versions: 2.0.0-2.0.4, 2.1.0-2.1.3
Exploitation Mechanism
- The issue arises when HBase is configured with Kerberos authentication, HBase authorization is enabled, and the REST server is set up with SPNEGO authentication.
Mitigation and Prevention
Protecting systems from CVE-2019-0212 requires specific actions to mitigate the vulnerability.
Immediate Steps to Take
- Update Apache HBase to a patched version that addresses the authorization issue.
- Review and adjust the authentication and authorization configurations in HBase to ensure proper user permissions.
Long-Term Security Practices
- Regularly monitor and update authentication mechanisms and configurations in Apache HBase.
- Conduct security audits to identify and address any potential authorization vulnerabilities.
Patching and Updates
- Stay informed about security updates and patches released by Apache for Apache HBase to address vulnerabilities like CVE-2019-0212.