CVE-2024-3177: K8s.io/kubernetes Kubernetes Allows Bypassing Mountable Secrets Vulnerability

LOW
Advisory Identifier: GHSA-pxhw-596r-rwq5
CVSS 2.7
CWE-20
Published
Advisory Summary

CVE-2024-3177 is a LOW (CVSS 2.7) kubernetes allows bypassing mountable secrets vulnerability (CWE-20: Improper Input Validation) affecting K8s.io/kubernetes libraries in the Go ecosystem. The issue involves kubernetes allows bypassing mountable secrets policy imposed by the serviceaccount admission plugin. Remediation is available by upgrading affected packages to version 1.27.13, 1.29.4, 1.28.9.

CVE-2024-3177 at a Glance

CVE Identifier CVE-2024-3177
GHSA Identifier GHSA-pxhw-596r-rwq5
Severity LOW
CVSS v3.1 Base Score 2.7
CWE Classification CWE-20: Improper Input Validation
Affected Product K8s.io/kubernetes
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 2.7

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

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

How to Fix CVE-2024-3177

To remediate this vulnerability, upgrade all affected K8s.io/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.

k8s.io/kubernetes fixed: 1.27.13
Upgrade k8s.io/kubernetes to 1.27.13
k8s.io/kubernetes fixed: 1.29.4
Upgrade k8s.io/kubernetes to 1.29.4
k8s.io/kubernetes fixed: 1.28.9
Upgrade k8s.io/kubernetes to 1.28.9
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 k8s.io/kubernetes

How to Check if You Are Affected

To determine whether your application is affected by CVE-2024-3177, inspect your project dependencies for K8s.io/kubernetes:

inspect dependencies for k8s.io/kubernetes

Analyze the terminal output to locate any version of K8s.io/kubernetes in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.27.13), 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 K8s.io/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

A security issue was discovered in Kubernetes where users may be able to launch containers that bypass the mountable secrets policy enforced by the ServiceAccount admission plugin when using containers, init containers, and ephemeral containers with the envFrom field populated. The policy ensures pods running with a service account may only reference secrets specified in the service account’s secrets field. Kubernetes clusters are only affected if the ServiceAccount admission plugin and the kubernetes.io/enforce-mountable-secrets annotation are used together with containers, init containers, and ephemeral containers with the envFrom field populated.

CVE-2024-3177 Affected K8s.io/kubernetes Versions

3 component(s)
Fixed Versions:
1.27.131.29.41.28.9
Product / Package Ecosystem Affected Versions Fixed Version
k8s.io/kubernetes
Go
< 1.27.13
1.27.13
k8s.io/kubernetes
Go
≥ 1.29.0
< 1.29.4
1.29.4
k8s.io/kubernetes
Go
≥ 1.28.0
< 1.28.9
1.28.9

References

Frequently Asked Questions

What is CVE-2024-3177?
CVE-2024-3177 is a security vulnerability in K8s.io/kubernetes involving Kubernetes allows bypassing mountable secrets policy imposed by the ServiceAccount admission plugin under CWE-20: Improper Input Validation.
Which K8s.io/kubernetes versions are affected?
Affected versions include releases prior to 1.27.13, 1.29.4, 1.28.9 across affected packages: k8s.io/kubernetes.
What version fixes CVE-2024-3177?
Upgrading to 1.27.13, 1.29.4, 1.28.9 (or the latest patched release for your respective branch) resolves the vulnerability.
Is k8s.io/kubernetes affected?
Yes, k8s.io/kubernetes is affected in releases prior to 1.27.13, 1.29.4, 1.28.9. Upgrade your dependency to 1.27.13, 1.29.4, 1.28.9 or later.
What is the CVSS score of CVE-2024-3177?
CVE-2024-3177 has a CVSS v3.1 base score of 2.7 (LOW) with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2024-3177?
CVE-2024-3177 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-2024-3177?
Run the dependency tree command: 'inspect dependencies for k8s.io/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-pxhw-596r-rwq5",
  "modified" : "2024-07-03T20:24:58Z",
  "published" : "2024-04-23T00:30:45Z",
  "aliases" : [ "CVE-2024-3177" ],
  "summary" : "Kubernetes allows bypassing mountable secrets policy imposed by the ServiceAccount admission plugin",
  "details" : "A security issue was discovered in Kubernetes where users may be able to launch containers that bypass the mountable secrets policy enforced by the ServiceAccount admission plugin when using containers, init containers, and ephemeral containers with the envFrom field populated. The policy ensures pods running with a service account may only reference secrets specified in the service account’s secrets field. Kubernetes clusters are only affected if the ServiceAccount admission plugin and the kubernetes.io/enforce-mountable-secrets annotation are used together with containers, init containers, and ephemeral containers with the envFrom field populated.\n\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "k8s.io/kubernetes"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.27.13"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "k8s.io/kubernetes"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.29.0"
      }, {
        "fixed" : "1.29.4"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 1.29.3"
    }
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "k8s.io/kubernetes"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.28.0"
      }, {
        "fixed" : "1.28.9"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 1.28.8"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-3177"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/kubernetes/kubernetes/issues/124336"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/kubernetes/kubernetes/commit/7c861b1ecad97e1ab9332c970c9294a72065111a"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/kubernetes/kubernetes/commit/a619ca3fd3ee3c222d9df784622020de398076d2"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/kubernetes/kubernetes/commit/f9fb6cf52a769a599a45e700375115c2ecc86e9b"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-pxhw-596r-rwq5"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/kubernetes/kubernetes"
  }, {
    "type" : "WEB",
    "url" : "https://groups.google.com/g/kubernetes-security-announce/c/JxjHf7fkVd8/m/oVCzypyOAQAJ"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QRYFHIQ6XRKRYBI2F5UESH67BJBQXUPT"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WL54MTLGMTBZZO5PYGEGEBERTMADC4WC"
  }, {
    "type" : "WEB",
    "url" : "https://pkg.go.dev/vuln/GO-2024-2746"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2024/04/16/4"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-20" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-04-23T16:19:54Z",
    "nvd_published_at" : "2024-04-22T23:15:51Z"
  }
}