CVE-2022-3294: Github.com/kubernetes/kubernetes Kubernetes Vulnerable To Validation Bypass Vulnerability

HIGH
Advisory Identifier: GHSA-jh36-q97c-9928
CVSS 8.8
CWE-20
Published
Advisory Summary

CVE-2022-3294 is a HIGH (CVSS 8.8) kubernetes vulnerable to validation bypass vulnerability (CWE-20: Improper Input Validation) affecting Github.com/kubernetes/kubernetes libraries in the Go ecosystem. The issue involves kubernetes vulnerable to validation bypass. Remediation is available by upgrading affected packages to version 1.25.4, 1.24.8, 1.23.14, 1.22.16.

CVE-2022-3294 at a Glance

CVE Identifier CVE-2022-3294
GHSA Identifier GHSA-jh36-q97c-9928
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-20: Improper Input Validation
Affected Product Github.com/kubernetes/kubernetes
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 8.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2022-3294

To remediate this vulnerability, upgrade all affected Github.com/kubernetes/kubernetes dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/kubernetes/kubernetes fixed: 1.25.4
Upgrade github.com/kubernetes/kubernetes to 1.25.4
github.com/kubernetes/kubernetes fixed: 1.24.8
Upgrade github.com/kubernetes/kubernetes to 1.24.8
github.com/kubernetes/kubernetes fixed: 1.23.14
Upgrade github.com/kubernetes/kubernetes to 1.23.14
github.com/kubernetes/kubernetes fixed: 1.22.16
Upgrade github.com/kubernetes/kubernetes to 1.22.16
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release:

inspect dependencies for github.com/kubernetes/kubernetes

How to Check if You Are Affected

To determine whether your application is affected by CVE-2022-3294, inspect your project dependencies for Github.com/kubernetes/kubernetes:

inspect dependencies for github.com/kubernetes/kubernetes

Analyze the terminal output to locate any version of Github.com/kubernetes/kubernetes in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.25.4), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-20: Improper Input Validation, where the product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. In Github.com/kubernetes/kubernetes, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Users may have access to secure endpoints in the control plane network. Kubernetes clusters are only affected if an untrusted user can modify Node objects and send proxy requests to them. Kubernetes supports node proxying, which allows clients of kube-apiserver to access endpoints of a Kubelet to establish connections to Pods, retrieve container logs, and more. While Kubernetes already validates the proxying address for Nodes, a bug in kube-apiserver made it possible to bypass this validation. Bypassing this validation could allow authenticated requests destined for Nodes to to the API server's private network.

CVE-2022-3294 Affected Github.com/kubernetes/kubernetes Versions

4 component(s)
Fixed Versions:
1.25.41.24.81.23.141.22.16
Product / Package Ecosystem Affected Versions Fixed Version
github.com/kubernetes/kubernetes
Go
≥ 1.25.0
< 1.25.4
1.25.4
github.com/kubernetes/kubernetes
Go
≥ 1.24.0
< 1.24.8
1.24.8
github.com/kubernetes/kubernetes
Go
≥ 1.23.0
< 1.23.14
1.23.14
github.com/kubernetes/kubernetes
Go
≥ 1.22.0
< 1.22.16
1.22.16

References

Frequently Asked Questions

What is CVE-2022-3294?
CVE-2022-3294 is a security vulnerability in Github.com/kubernetes/kubernetes involving Kubernetes vulnerable to validation bypass under CWE-20: Improper Input Validation.
Which Github.com/kubernetes/kubernetes versions are affected?
Affected versions include releases prior to 1.25.4, 1.24.8, 1.23.14, 1.22.16 across affected packages: github.com/kubernetes/kubernetes.
What version fixes CVE-2022-3294?
Upgrading to 1.25.4, 1.24.8, 1.23.14, 1.22.16 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/kubernetes/kubernetes affected?
Yes, github.com/kubernetes/kubernetes is affected in releases prior to 1.25.4, 1.24.8, 1.23.14, 1.22.16. Upgrade your dependency to 1.25.4, 1.24.8, 1.23.14, 1.22.16 or later.
What is the CVSS score of CVE-2022-3294?
CVE-2022-3294 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2022-3294?
CVE-2022-3294 is classified under CWE-20: Improper Input Validation (The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.).
How can I check Go dependencies for CVE-2022-3294?
Run the dependency tree command: 'inspect dependencies for github.com/kubernetes/kubernetes'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-jh36-q97c-9928",
  "modified" : "2023-03-10T22:45:03Z",
  "published" : "2023-03-01T21:30:18Z",
  "aliases" : [ "CVE-2022-3294" ],
  "summary" : "Kubernetes vulnerable to validation bypass",
  "details" : "Users may have access to secure endpoints in the control plane network. Kubernetes clusters are only affected if an untrusted user can modify Node objects and send proxy requests to them. Kubernetes supports node proxying, which allows clients of kube-apiserver to access endpoints of a Kubelet to establish connections to Pods, retrieve container logs, and more. While Kubernetes already validates the proxying address for Nodes, a bug in kube-apiserver made it possible to bypass this validation. Bypassing this validation could allow authenticated requests destined for Nodes to to the API server's private network.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/kubernetes/kubernetes"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.25.0"
      }, {
        "fixed" : "1.25.4"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/kubernetes/kubernetes"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.24.0"
      }, {
        "fixed" : "1.24.8"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/kubernetes/kubernetes"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.23.0"
      }, {
        "fixed" : "1.23.14"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/kubernetes/kubernetes"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.22.0"
      }, {
        "fixed" : "1.22.16"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-3294"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/kubernetes/kubernetes/issues/113757"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/kubernetes/kubernetes"
  }, {
    "type" : "WEB",
    "url" : "https://groups.google.com/g/kubernetes-security-announce/c/VyPOxF7CIbA"
  }, {
    "type" : "WEB",
    "url" : "https://security.netapp.com/advisory/ntap-20230505-0007"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-20" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-03-10T22:45:03Z",
    "nvd_published_at" : "2023-03-01T19:15:00Z"
  }
}