CVE-2022-47633
An image signature validation bypass vulnerability in Kyverno 1.8.3 and 1.8.4 allows a malicious image registry (or a man-in-the-middle attacker) to inject unsigned arbitrary container images into a protected Kubernetes cluster.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.96%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An image signature validation bypass vulnerability in Kyverno 1.8.3 and 1.8.4 allows a malicious image registry (or a man-in-the-middle attacker) to inject unsigned arbitrary container images into a protected Kubernetes cluster. This is fixed in 1.8.5. This has been fixed in 1.8.5 and mitigations are available for impacted releases.
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.96% probability · 59th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-287
- Affected
- kyverno/kyverno
- Source
- cve@mitre.org
References
- https://github.com/kyverno/kyverno/compare/v1.8.4...v1.8.5Patch, Third Party Advisory
- https://github.com/kyverno/kyverno/pull/5713Patch, Third Party Advisory
- https://github.com/kyverno/kyverno/releases/tag/v1.8.5Release Notes, Third Party Advisory
- https://github.com/kyverno/kyverno/security/advisories/GHSA-m3cq-xcx9-3gvmPatch, Third Party Advisory
- https://kyverno.io/docs/writing-policies/verify-images/Product
- https://github.com/kyverno/kyverno/compare/v1.8.4...v1.8.5Patch, Third Party Advisory
- https://github.com/kyverno/kyverno/pull/5713Patch, Third Party Advisory
- https://github.com/kyverno/kyverno/releases/tag/v1.8.5Release Notes, Third Party Advisory
- https://github.com/kyverno/kyverno/security/advisories/GHSA-m3cq-xcx9-3gvmPatch, Third Party Advisory
- https://kyverno.io/docs/writing-policies/verify-images/Product
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.