CVE-2022-2403 : Security Advisory and Response
Learn about CVE-2022-2403 impacting OpenShift Container Platform versions 4.9 onwards. Take immediate steps, implement long-term security measures, and stay updated with patches.
A credentials leak was found in the OpenShift Container Platform, potentially compromising web traffic secured using the external cluster certificate private key.
Understanding CVE-2022-2403
This CVE pertains to a credentials leak in OpenShift affecting versions 4.9 onwards.
What is CVE-2022-2403?
A credentials leak in OpenShift resulted in the incorrect storage of the external cluster certificate private key, accessible to authenticated users, posing a risk to web traffic security.
The Impact of CVE-2022-2403
Malicious users could compromise web traffic secured by the certificate by accessing the oauth-serving-cert ConfigMap, potentially leading to sensitive information exposure.
Technical Details of CVE-2022-2403
This section outlines the vulnerability description, affected systems, versions, and exploitation mechanism.
Vulnerability Description
The private key for the external cluster certificate was stored incorrectly in the oauth-serving-cert ConfigMaps, making it accessible to any authenticated OpenShift user or service-account.
Affected Systems and Versions
OpenShift versions 4.9 onwards are affected by this vulnerability.
Exploitation Mechanism
Malicious users could exploit the flaw by reading the oauth-serving-cert ConfigMap in the openshift-config-managed namespace, compromising web traffic secured using that certificate.
Mitigation and Prevention
To address CVE-2022-2403, immediate steps should be taken along with the implementation of long-term security practices and regular patching and updates.
Immediate Steps to Take
Users are advised to update to a patched version, revoke and replace any compromised certificates, monitor for unauthorized access, and review security configurations.
Long-Term Security Practices
Regularly review and update security configurations, follow the principle of least privilege, conduct security training, and implement encryption for sensitive data.
Patching and Updates
Stay informed about security updates from the provider, apply patches promptly, and ensure the secure storage of sensitive credentials.