CVE-2022-35930

CVSS V2 None CVSS V3 High 8.8

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.

Overview

CVE ID
CVE-2022-35930

Assigner
security-advisories@github.com

Vulnerability Status
Analyzed

Published Version
2022-08-04T22:15:08

Last Modified Date
2022-08-11T18:14:30

Weakness Enumerations

CWE	URL
CWE-347	http://cwe.mitre.org/data/definitions/347.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:sigstore:policy_controller::::::::	1	OR		0.2.1

CVSS Version 3

Version
3.1

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

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
LOW

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
8.8

Base Severity
HIGH

Exploitability Score
2.8

Impact Score
5.9

References

Reference URL	Reference Tags
https://github.com/sigstore/policy-controller/commit/e852af36fb7d42678b21d7e97503c25bd1fd05c8
https://github.com/sigstore/policy-controller/security/advisories/GHSA-739f-hw6h-7wq8
https://github.com/sigstore/policy-controller/releases/tag/v0.2.1

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2022-35930
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-35930

History

Created	Old Value	New Value	Data Type	Notes
2022-08-04 23:00:05				Added to TrackCVE