Vulnerability Description
A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use .metadata.annotations in an Ingress object (in the networking.k8s.io or extensions API group) to obtain the credentials of the ingress-nginx controller. In the default configuration, that credential has access to all secrets in the cluster.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Kubernetes | Ingress-Nginx | < 1.2.0 |
Related Weaknesses (CWE)
References
- https://github.com/kubernetes/ingress-nginx/issues/8503Issue TrackingMitigationThird Party Advisory
- https://groups.google.com/g/kubernetes-security-announce/c/hv2-SfdqcfQIssue TrackingMitigationThird Party Advisory
- https://security.netapp.com/advisory/ntap-20220609-0006/Third Party Advisory
- https://github.com/kubernetes/ingress-nginx/issues/8503Issue TrackingMitigationThird Party Advisory
- https://groups.google.com/g/kubernetes-security-announce/c/hv2-SfdqcfQIssue TrackingMitigationThird Party Advisory
- https://security.netapp.com/advisory/ntap-20220609-0006/Third Party Advisory
FAQ
What is CVE-2021-25746?
CVE-2021-25746 is a vulnerability with a CVSS score of 7.6 (HIGH). A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use .metadata.annotations in an Ingress object (in the networking.k8s.io or extensions API g...
How severe is CVE-2021-25746?
CVE-2021-25746 has been rated HIGH with a CVSS base score of 7.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-25746?
Check the references section above for vendor advisories and patch information. Affected products include: Kubernetes Ingress-Nginx.