CVE-2022-35930
Last modified
CVE-2022-35930 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. PolicyController is a utility used to enforce supply chain policy in Kubernetes clusters. In versions prior to 0.2.1 PolicyController will report a false positive, resulting in an admission when it should not be admitted when there is at least one attestation with a valid signature and there are NO attestations of the type being verified (--type defaults to "custom"). EPSS estimates a 0.51% chance of exploitation in the next 30 days.
Description
PolicyController is a utility used to enforce supply chain policy in Kubernetes clusters. In versions prior to 0.2.1 PolicyController will report a false positive, resulting in an admission when it should not be admitted when there is at least one attestation with a valid signature and there are NO attestations of the type being verified (--type defaults to "custom"). An example image that can be used to test this is `ghcr.io/distroless/static@sha256:dd7614b5a12bc4d617b223c588b4e0c833402b8f4991fb5702ea83afad1986e2`. Users should upgrade to version 0.2.1 to resolve this issue. There are no workarounds for users unable to upgrade.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Sigstore | Policy Controller | < 0.2.1 |
References
- https://github.com/sigstore/policy-controller/commit/e852af36fb7d42678b21d7e97503c25bd1fd05c8Patch, Third Party Advisory
- https://github.com/sigstore/policy-controller/releases/tag/v0.2.1Third Party Advisory
- https://github.com/sigstore/policy-controller/commit/e852af36fb7d42678b21d7e97503c25bd1fd05c8Patch, Third Party Advisory
- https://github.com/sigstore/policy-controller/releases/tag/v0.2.1Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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