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CVE-2022-35930

HIGH
Published 2022-08-04T21:15:15.000Z
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CVSS Score

V3.1
7.1
/10
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.001
probability
of exploitation in the wild

There is a 0.1% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.230
Higher than 23.0% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

sigstore

policy-controller

Affected Versions:

< 0.2.1

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

✓ GitHub Reviewed HIGH

PolicyController before 0.2.1 may bypass attestation verification

GHSA-739f-hw6h-7wq8

Advisory Details

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 * There are NO attestations of the type being verified (--type defaults to "custom") Users should upgrade to cosign version 0.2.1 or greater for a patch. There are no known workarounds at this time.

Affected Packages

Go github.com/sigstore/policy-controller
ECOSYSTEM: ≥0 <0.2.1

CVSS Scoring

CVSS Score

7.5

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

References

WEB https://github.com/sigstore/policy-controller/security/advisories/GHSA-739f-hw6h-7wq8
ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2022-35930
WEB https://github.com/sigstore/policy-controller/commit/e852af36fb7d42678b21d7e97503c25bd1fd05c8
PACKAGE https://github.com/sigstore/policy-controller
WEB https://github.com/sigstore/policy-controller/releases/tag/v0.2.1

Advisory provided by GitHub Security Advisory Database. Published: August 10, 2022, Modified: August 10, 2022

References

https://github.com/sigstore/policy-controller/security/advisories/GHSA-739f-hw6h-7wq8
https://github.com/sigstore/policy-controller/commit/e852af36fb7d42678b21d7e97503c25bd1fd05c8
https://github.com/sigstore/policy-controller/releases/tag/v0.2.1
Published: 2022-08-04T21:15:15.000Z
Last Modified: 2025-04-23T17:53:16.444Z
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