Kubernetes etcd Secrets Exposure
k8s-etcd-exposed is a critical severity check in the
devops category, written in go.
Its source is templates/devops/etcd/k8s-etcd-exposed.go in
cert-x-gen-templates.
What it checks
Section titled “What it checks”Detects exposed Kubernetes etcd databases leaking cluster secrets, tokens, and certificates
Header
Section titled “Header”| Field | Value |
|---|---|
| Id | k8s-etcd-exposed |
| Severity | critical |
| Language | go |
| Category | devops |
| Author | CERT-X-GEN Security Team |
| Template version | 1.0.0 |
| Confidence | 95 |
| CVSS | 9.8 |
| Weakness | CWE-200, CWE-306 |
| Tags | kubernetes, etcd, secrets, cloud, k8s, misconfiguration |
| Target kind | not recorded |
| Oracle | not recorded |
References
Section titled “References”Declared in the header. cxg parses @references and then discards it, and
nothing at scan time reads it, so this is the only place the links a
template cites are surfaced.
- https://kubernetes.io/docs/concepts/configuration/secret/
- https://etcd.io/docs/v3.5/op-guide/security/
Run it
Section titled “Run it”To see what the copy on your machine says about itself, and to confirm it is installed at all:
cxg template info k8s-etcd-exposedThe id it prints is the one to pass anywhere a template is selected. See
cxg template for the rest of
the subcommand, Scan a target for running
a scan, and
A match is not a finding for how
to read what comes back.
Related
Section titled “Related”- Template catalog is the whole corpus.
- devops is the rest of this category.
- Templates by weakness class groups checks by the defect they look for.
- Contribute a template is the route from a check you needed and could not find to a merged one.