Vulnerability-Lookup

GHSA-8WJ5-GVVW-F5FH

Vulnerability from github – Published: 2022-05-24 16:55 – Updated: 2022-05-24 16:55

Details

The kubectl cp command allows copying files between containers and the user machine. To copy files from a container, Kubernetes runs tar inside the container to create a tar archive, copies it over the network, and kubectl unpacks it on the user?s machine. If the tar binary in the container is malicious, it could run any code and output unexpected, malicious results. An attacker could use this to write files to any path on the user?s machine when kubectl cp is called, limited only by the system permissions of the local user. Kubernetes affected versions include versions prior to 1.12.9, versions prior to 1.13.6, versions prior to 1.14.2, and versions 1.1, 1.2, 1.4, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 1.10, 1.11.

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{
  "affected": [],
  "aliases": [
    "CVE-2019-11246"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-08-29T01:15:00Z",
    "severity": null
  },
  "details": "The kubectl cp command allows copying files between containers and the user machine. To copy files from a container, Kubernetes runs tar inside the container to create a tar archive, copies it over the network, and kubectl unpacks it on the user?s machine. If the tar binary in the container is malicious, it could run any code and output unexpected, malicious results. An attacker could use this to write files to any path on the user?s machine when kubectl cp is called, limited only by the system permissions of the local user. Kubernetes affected versions include versions prior to 1.12.9, versions prior to 1.13.6, versions prior to 1.14.2, and versions 1.1, 1.2, 1.4, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 1.10, 1.11.",
  "id": "GHSA-8wj5-gvvw-f5fh",
  "modified": "2022-05-24T16:55:06Z",
  "published": "2022-05-24T16:55:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-11246"
    },
    {
      "type": "WEB",
      "url": "https://github.com/kubernetes/kubernetes/pull/76788"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/forum/#!topic/kubernetes-security-announce/NLs2TGbfPdo"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20190919-0003"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2019-11246 (GCVE-0-2019-11246)

Vulnerability from cvelistv5 – Published: 2019-08-29 00:23 – Updated: 2024-09-16 23:01

Title

kubectl cp allows symlink directory traversal

Summary

The kubectl cp command allows copying files between containers and the user machine. To copy files from a container, Kubernetes runs tar inside the container to create a tar archive, copies it over the network, and kubectl unpacks it on the user’s machine. If the tar binary in the container is malicious, it could run any code and output unexpected, malicious results. An attacker could use this to write files to any path on the user’s machine when kubectl cp is called, limited only by the system permissions of the local user. Kubernetes affected versions include versions prior to 1.12.9, versions prior to 1.13.6, versions prior to 1.14.2, and versions 1.1, 1.2, 1.4, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 1.10, 1.11.

Severity

6.4 (Medium)


                        
                          CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H

CWE

CWE-61 - UNIX Symbolic Link (Symlink) Following

Assigner

kubernetes mitre root

References

3 references

URL	Tags
https://github.com/kubernetes/kubernetes/pull/76788	x_refsource_CONFIRM
https://groups.google.com/forum/#%21topic/kuberne…	mailing-listx_refsource_MLIST
https://security.netapp.com/advisory/ntap-2019091…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
Kubernetes	Kubernetes	Affected: prior to 1.12.9 Affected: prior to 1.13.6 Affected: prior to 1.14.2 Affected: 1.1 Affected: 1.2 Affected: 1.4 Affected: 1.5 Affected: 1.6 Affected: 1.7 Affected: 1.8 Affected: 1.9 Affected: 1.10 Affected: 1.11

Date Public

2019-06-21 00:00

Credits

Charles Holmes, Atredis Partners

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JSON

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            "url": "https://security.netapp.com/advisory/ntap-20190919-0003/"
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

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