Kubewarden: RBAC Reconnaissance via unchecked can_i host capability call
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| kubewarden | kubewarden-controller | affected |
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| Vendor | Product | Versions | ||||||||
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| Kubewarden | Kubewarden-controller |
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| Source | ID | Title |
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Github GHSA |
GHSA-wqcw-g35j-j578 | Kubewarden vulnerable to RBAC Reconnaissance via unchecked can_i host capability call |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.171% probability within 30 days)
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| Metrics |
ssvc
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| First Time appeared |
Kubewarden
Kubewarden kubewarden-controller |
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| Vendors & Products |
Kubewarden
Kubewarden kubewarden-controller |
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| Description | Kubewarden is a policy engine for Kubernetes. Prior to , An attacker with privileged AdmissionPolicy or AdmissionPolicyGroup create permissions (which isn't the default) can craft a policy that makes use of the can_i host callback. The callback issues a SubjectAccessReview (SAR) requests to enumerate RBAC permissions of any user or service account across the cluster. can_i does not perform that check to enforce the context-aware allow-list and forwards the request directly to the callback handler, which executes a real SubjectAccessReview using policy-server privileges. This creates a policy-level authorization gap: can_i is effectively usable even when the policy has no context-aware resource grant. This is an information disclosure / reconnaissance issue, and not direct workload data exfiltration. The attacker learns permission information, such as whether specific service accounts can "get secrets", "create pods", or "bind clusterroles" in chosen namespaces. This vulnerability is fixed in . | |
| Title | Kubewarden: RBAC Reconnaissance via unchecked can_i host capability call | |
| Weaknesses | CWE-862 | |
| References |
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| Metrics |
cvssV3_1
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