8.8
HIGH
CVE-2022-35930
Kubernetes PolicyController Signature Validation False Positive Vulnerability
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.

INFO

Published Date :

Aug. 4, 2022, 10:15 p.m.

Last Modified :

Nov. 21, 2024, 7:11 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2022-35930 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Sigstore policy_controller
References to Advisories, Solutions, and Tools

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2022-35930 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2022-35930 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://github.com/sigstore/policy-controller/commit/e852af36fb7d42678b21d7e97503c25bd1fd05c8
    Added Reference https://github.com/sigstore/policy-controller/releases/tag/v0.2.1
    Added Reference https://github.com/sigstore/policy-controller/security/advisories/GHSA-739f-hw6h-7wq8
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Aug. 11, 2022

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://github.com/sigstore/policy-controller/commit/e852af36fb7d42678b21d7e97503c25bd1fd05c8 No Types Assigned https://github.com/sigstore/policy-controller/commit/e852af36fb7d42678b21d7e97503c25bd1fd05c8 Patch, Third Party Advisory
    Changed Reference Type https://github.com/sigstore/policy-controller/releases/tag/v0.2.1 No Types Assigned https://github.com/sigstore/policy-controller/releases/tag/v0.2.1 Third Party Advisory
    Changed Reference Type https://github.com/sigstore/policy-controller/security/advisories/GHSA-739f-hw6h-7wq8 No Types Assigned https://github.com/sigstore/policy-controller/security/advisories/GHSA-739f-hw6h-7wq8 Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:sigstore:policy_controller:*:*:*:*:*:*:*:* versions up to (excluding) 0.2.1
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-35930 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2022-35930 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.19 }} 0.01%

score

0.54885

percentile

CVSS31 - Vulnerability Scoring System
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