CVE-2024-43403 (GCVE-0-2024-43403)

Vulnerability from cvelistv5 – Published: 2024-08-20 21:16 – Updated: 2024-08-21 16:35

Title

Kanister has a potential risk which can be leveraged to make a cluster-level privilege escalation

Summary

Kanister is a data protection workflow management tool. The kanister has a deployment called default-kanister-operator, which is bound with a ClusterRole called edit via ClusterRoleBinding. The "edit" ClusterRole is one of Kubernetes default-created ClusterRole, and it has the create/patch/udpate verbs of daemonset resources, create verb of serviceaccount/token resources, and impersonate verb of serviceaccounts resources. A malicious user can leverage access the worker node which has this component to make a cluster-level privilege escalation.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-08-21 16:34 UTC

CWE

CWE-269 - Improper Privilege Management

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7761 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/kanisterio/kanister/security/a…	x_refsource_CONFIRM
https://github.com/kanisterio/kanister/blob/maste…	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version	CPE status
kanisterio	kanister	Affected: <= 0.110.0	guessed
kanisterio	kanister	Affected: 0 , ≤ * (custom) cpe:2.3:a:kanisterio:kanister:0:::::::*

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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      {
        "affected": [
          {
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              "cpe:2.3:a:kanisterio:kanister:0:*:*:*:*:*:*:*"
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        },
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      }
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        {
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            {
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            }
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        }
      ],
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      },
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        },
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          "tags": [
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    "dateReserved": "2024-08-12T18:02:04.966Z",
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    "nvd": {
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          },
          {
            "lang": "es",
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          }
        ],
        "id": "CVE-2024-43403",
        "lastModified": "2026-06-17T07:50:58.800",
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}

FKIE_CVE-2024-43403

Vulnerability from fkie_nvd - Published: 2024-08-20 22:15 - Updated: 2026-06-17 07:50

Severity

8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/kanisterio/kanister/blob/master/helm/kanister-operator/templates/rbac.yaml#L49
	security-advisories@github.com	https://github.com/kanisterio/kanister/security/advisories/GHSA-h27c-6xm3-mcqp

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "kanister",
          "vendor": "kanisterio",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c= 0.110.0"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    },
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:kanisterio:kanister:0:*:*:*:*:*:*:*"
          ],
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          "product": "kanister",
          "vendor": "kanisterio",
          "versions": [
            {
              "lessThanOrEqual": "*",
              "status": "affected",
              "version": "0",
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            }
          ]
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Kanister is a data protection workflow management tool. The kanister has a deployment called default-kanister-operator, which is bound with a ClusterRole called edit via ClusterRoleBinding. The \"edit\" ClusterRole is one of Kubernetes default-created ClusterRole, and it has the create/patch/udpate verbs of daemonset resources, create verb of serviceaccount/token resources, and impersonate verb of serviceaccounts resources. A malicious user can leverage access the worker node which has this component to make a cluster-level privilege escalation."
    },
    {
      "lang": "es",
      "value": "Kanister es una herramienta de gesti\u00f3n del flujo de trabajo de protecci\u00f3n de datos. El kanister tiene una implementaci\u00f3n llamada default-kanister-operator, que est\u00e1 vinculada con un ClusterRole llamado editar mediante ClusterRoleBinding. El ClusterRole \"editar\" es uno de los ClusterRole creados de forma predeterminada por Kubernetes y tiene los verbos de creaci\u00f3n/parche/actualizaci\u00f3n de recursos de daemonset, el verbo de creaci\u00f3n de recursos de cuenta de servicio/token y el verbo de suplantaci\u00f3n de recursos de cuentas de servicio. Un usuario malintencionado puede aprovechar el acceso al nodo trabajador que tiene este componente para realizar una escalada de privilegios a nivel de cl\u00faster."
    }
  ],
  "id": "CVE-2024-43403",
  "lastModified": "2026-06-17T07:50:58.800",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
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          "baseScore": 8.8,
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          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
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  "references": [
    {
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      "url": "https://github.com/kanisterio/kanister/blob/master/helm/kanister-operator/templates/rbac.yaml#L49"
    },
    {
      "source": "security-advisories@github.com",
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}

GHSA-H27C-6XM3-MCQP

Vulnerability from github – Published: 2024-08-20 22:13 – Updated: 2024-11-25 20:50

Withdrawn 2024-11-25

Summary

Withdrawn Advisory: Kanister vulnerable to cluster-level privilege escalation

Details

Withdrawn Advisory

This advisory has been withdrawn because the vulnerability does not affect a released Go package. For more information, see github/advisory-database/issues/5029.

Original Advisory

Summary

This advisory affects the Kanister helm charts and not the go package

Details

The kanister has a deployment called default-kanister-operator, which is bound with a ClusterRole called edit via ClusterRoleBinding(https://github.com/kanisterio/kanister/blob/master/helm/kanister-operator/templates/rbac.yaml#L49). The "edit" ClusterRole is one of Kubernetes default-created ClusterRole, and it have create/patch/udpate verbs of daemonset resources, create verb of serviceaccount/token resources, and impersonate verb of serviceaccounts resources. If a malicious user can access the worker node which has this component, he/she can:

For the create/patch/update verbs of daemonset resources, the malicious user can abuse it to create or modify a set of Pods to mount a high-privilege service account (e.g., the cluster-admin service account). After that, he/she can abuse the high-privilege SA token of created Pod to take over the whole cluster.

For the create verb of serviceaccount/token resources, a malicious user can abuse this permission to generate new Service Account tokens and use them to operate with high-privilege roles, such as cluster administrators. These tokens can be used to access and manipulate any resources within the cluster.

For the impersonate verb of serviceaccounts resources, a malicious user can impersonate high-privilege Service Accounts, thereby gaining access to roles such as cluster administrators. This enables the attacker to perform all actions that the high-privilege account can, including creating, modifying, and deleting critical resources within the cluster.

PoC

We have discussed in the "Details" section

Impact

Privilege escalation

Mitigation

Currently kanister helm chart provides rbac.create flag (true by default), which controls whether the rbac rules for kanister service account will be created https://github.com/kanisterio/kanister/blob/master/helm/kanister-operator/values.yaml#L17 If this value set to false, the user needs to create rbac rules themselves and they can limit the role bindings for kanister service account, for example scope it to specific namespace. Service account can also be configured via helm https://github.com/kanisterio/kanister/blob/master/helm/kanister-operator/values.yaml#L19

Severity

8.8 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

6.3 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/kanisterio/kanister"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.0.0-20240926084453-1f40f03d8432"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-43403"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-08-20T22:13:02Z",
    "nvd_published_at": "2024-08-20T22:15:04Z",
    "severity": "MODERATE"
  },
  "details": "# Withdrawn Advisory\n\nThis advisory has been withdrawn because the vulnerability does not affect a released Go package. For more information, see github/advisory-database/issues/5029.\n\n# Original Advisory\n\n### Summary\nThis advisory affects the Kanister helm charts and not the go package\n\n### Details\nThe kanister has a deployment called default-kanister-operator, which is bound with a ClusterRole called edit via ClusterRoleBinding(https://github.com/kanisterio/kanister/blob/master/helm/kanister-operator/templates/rbac.yaml#L49). The \"edit\" ClusterRole is one of Kubernetes default-created ClusterRole, and it have create/patch/udpate verbs of daemonset resources, create verb of serviceaccount/token resources, and impersonate verb of serviceaccounts resources. If a malicious user can access the worker node which has this component, he/she can:\n\nFor the create/patch/update verbs of daemonset resources, the malicious user can abuse it to create or modify a set of Pods to mount a high-privilege service account (e.g., the cluster-admin service account). After that, he/she can abuse the high-privilege SA token of created Pod to take over the whole cluster.\n\nFor the create verb of serviceaccount/token resources, a malicious user can abuse this permission to generate new Service Account tokens and use them to operate with high-privilege roles, such as cluster administrators. These tokens can be used to access and manipulate any resources within the cluster.\n\nFor the impersonate verb of serviceaccounts resources, a malicious user can impersonate high-privilege Service Accounts, thereby gaining access to roles such as cluster administrators. This enables the attacker to perform all actions that the high-privilege account can, including creating, modifying, and deleting critical resources within the cluster.\n\n\n### PoC\nWe have discussed in the \"Details\" section\n\n### Impact\nPrivilege escalation\n\n### Mitigation\n\nCurrently kanister helm chart provides rbac.create flag (true by default), which controls whether the rbac rules for kanister service account will be created https://github.com/kanisterio/kanister/blob/master/helm/kanister-operator/values.yaml#L17\nIf this value set to false, the user needs to create rbac rules themselves and they can limit the role bindings for kanister service account, for example scope it to specific namespace.\nService account can also be configured via helm https://github.com/kanisterio/kanister/blob/master/helm/kanister-operator/values.yaml#L19\n",
  "id": "GHSA-h27c-6xm3-mcqp",
  "modified": "2024-11-25T20:50:10Z",
  "published": "2024-08-20T22:13:02Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/kanisterio/kanister/security/advisories/GHSA-h27c-6xm3-mcqp"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-43403"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/kanisterio/kanister"
    },
    {
      "type": "WEB",
      "url": "https://github.com/kanisterio/kanister/blob/master/helm/kanister-operator/templates/rbac.yaml#L49"
    },
    {
      "type": "WEB",
      "url": "https://github.com/kanisterio/kanister/wiki/2023%E2%80%9024-Community-Meeting-Notes"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Withdrawn Advisory: Kanister vulnerable to cluster-level privilege escalation",
  "withdrawn": "2024-11-25T20:50:10Z"
}

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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Action not permitted

CVE-2024-43403 (GCVE-0-2024-43403)

FKIE_CVE-2024-43403

GHSA-H27C-6XM3-MCQP

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