GHSA-5wj4-wffq-3378
Suggest an improvement- Source
- https://github.com/advisories/GHSA-5wj4-wffq-3378
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/10/GHSA-5wj4-wffq-3378/GHSA-5wj4-wffq-3378.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/GHSA-5wj4-wffq-3378
- Aliases
- Related
- Published
- 2023-10-25T21:30:33Z
- Modified
- 2024-09-11T06:13:07.337541Z
- Severity
-
- 7.6 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L CVSS Calculator
- Summary
- Ingress nginx annotation injection causes arbitrary command execution
- Details
-
Issue Details
A security issue was identified in ingress-nginx where the nginx.ingress.kubernetes.io/configuration-snippet annotation on an Ingress object (in the networking.k8s.io or extensions API group) can be used to inject arbitrary commands, and obtain the credentials of the ingress-nginx controller. In the default configuration, that credential has access to all secrets in the cluster.
This issue has been rated High (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L), and assigned CVE-2023-5043.
Affected Components and Configurations
This bug affects ingress-nginx. If you do not have ingress-nginx installed on your cluster, you are not affected. You can check this by running kubectl get po -n ingress-nginx.
If you are running the “chrooted” ingress-nginx controller introduced in v1.2.0 (gcr.io/k8s-staging-ingress-nginx/controller-chroot), command execution is possible but credential extraction is not, so the High severity does not apply.
Multi-tenant environments where non-admin users have permissions to create Ingress objects are most affected by this issue.
Affected Versions
<v1.9.0
Versions allowing mitigation
v1.9.0
Mitigation
Ingress Administrators should set the --enable-annotation-validation flag to enforce restrictions on the contents of ingress-nginx annotation fields.
Detection
If you find evidence that this vulnerability has been exploited, please contact security@kubernetes.io
Additional Details
See ingress-nginx Issue #10571 for more details.
Acknowledgements
This vulnerability was reported by suanve
Thank You, CJ Cullen on behalf of the Kubernetes Security Response Committee
- Database specific
{ "nvd_published_at": "2023-10-25T20:15:18Z", "cwe_ids": [ "CWE-20", "CWE-74" ], "severity": "HIGH", "github_reviewed": true, "github_reviewed_at": "2023-11-03T19:13:55Z" }- References
Affected packages
Go / k8s.io/ingress-nginx
Package
- Name
- k8s.io/ingress-nginx
- View open source insights on deps.dev
- Purl
- pkg:golang/k8s.io/ingress-nginx