8.1
HIGH
CVE-2022-47633
Kyverno Image Signature Validation Bypass Remote Code Execution
Description

An image signature validation bypass vulnerability in Kyverno 1.8.3 and 1.8.4 allows a malicious image registry (or a man-in-the-middle attacker) to inject unsigned arbitrary container images into a protected Kubernetes cluster. This is fixed in 1.8.5. This has been fixed in 1.8.5 and mitigations are available for impacted releases.

INFO

Published Date :

Dec. 23, 2022, 11:15 p.m.

Last Modified :

Jan. 4, 2023, 7:57 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.2
Public PoC/Exploit Available at Github

CVE-2022-47633 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2022-47633 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 Kyverno kyverno
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2022-47633.

URL Resource
https://github.com/kyverno/kyverno/compare/v1.8.4...v1.8.5 Patch Third Party Advisory
https://github.com/kyverno/kyverno/pull/5713 Patch Third Party Advisory
https://github.com/kyverno/kyverno/releases/tag/v1.8.5 Release Notes Third Party Advisory
https://github.com/kyverno/kyverno/security/advisories/GHSA-m3cq-xcx9-3gvm Patch Third Party Advisory
https://kyverno.io/docs/writing-policies/verify-images/ Product

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).

This is a POC repository showing how a Kubernetes Admission Controller can be made irrelevant when verifying container image signatures

Dockerfile HTML Python Shell

Updated: 3 weeks ago
12 stars 1 fork 1 watcher
Born at : Dec. 5, 2022, 8:10 p.m. This repo has been linked 1 different CVEs too.

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

The following list is the news that have been mention CVE-2022-47633 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2022-47633 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 [email protected]

    May. 14, 2024

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

    Jan. 04, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://github.com/kyverno/kyverno/compare/v1.8.4...v1.8.5 No Types Assigned https://github.com/kyverno/kyverno/compare/v1.8.4...v1.8.5 Patch, Third Party Advisory
    Changed Reference Type https://github.com/kyverno/kyverno/pull/5713 No Types Assigned https://github.com/kyverno/kyverno/pull/5713 Patch, Third Party Advisory
    Changed Reference Type https://github.com/kyverno/kyverno/releases/tag/v1.8.5 No Types Assigned https://github.com/kyverno/kyverno/releases/tag/v1.8.5 Release Notes, Third Party Advisory
    Changed Reference Type https://github.com/kyverno/kyverno/security/advisories/GHSA-m3cq-xcx9-3gvm No Types Assigned https://github.com/kyverno/kyverno/security/advisories/GHSA-m3cq-xcx9-3gvm Patch, Third Party Advisory
    Changed Reference Type https://kyverno.io/docs/writing-policies/verify-images/ No Types Assigned https://kyverno.io/docs/writing-policies/verify-images/ Product
    Added CWE NIST CWE-287
    Added CPE Configuration OR *cpe:2.3:a:kyverno:kyverno:1.8.3:*:*:*:*:*:*:* *cpe:2.3:a:kyverno:kyverno:1.8.4:*:*:*:*:*:*:*
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-2022-47633 is associated with the following CWEs:

Exploit Prediction

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

0.20 }} 0.01%

score

0.58679

percentile

CVSS31 - Vulnerability Scoring System
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