CVE Vulnerability

CVE-2022-35930

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.

8.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/sigstore/policy-controller/commit/e852af36fb7d42678b21d7e97503c25bd1fd05c8 Patch Third Party Advisory
https://github.com/sigstore/policy-controller/security/advisories/GHSA-739f-hw6h-7wq8 Third Party Advisory
https://github.com/sigstore/policy-controller/releases/tag/v0.2.1 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:sigstore:policy_controller:*:*:*:*:*:*:*:*
Information

Published : 2022-08-04 10:15

Updated : 2022-08-11 06:14

NVD link : CVE-2022-35930

Mitre link : CVE-2022-35930

Products Affected
No products.
CWE
CWE-347

Improper Verification of Cryptographic Signature