Vulnerability-Lookup

GHSA-V829-X6HH-CQFQ

Vulnerability from github – Published: 2023-03-10 23:47 – Updated: 2023-03-10 23:47

Summary

Crossplane-runtime contains Improper Input Validation via Compositions

Details

Summary

Fuzz testing, by Ada Logics and sponsored by the CNCF, identified a vulnerability in the fieldpath package from crossplane/crossplane-runtime that an already highly privileged Crossplane user able to create or update Compositions could leverage to cause an out of memory panic in Crossplane.

Details

Compositions allow users to specify patches inserting elements into arrays at an arbitrary index. When a Composition is selected for a Composite Resource, patches are evaluated and if a specified index is greater than the current size of the target slice, that slice's size will be increased to the specified index, which could lead to an excessive amount of memory usage and therefore the Pod being OOM-Killed. The index is already capped to the maximum value for a uint32 (4294967295) when parsed, but that is still an unnecessarily large value.

Workaround

Users can restrict write privileges on Compositions to only admin users as a workaround.

Severity ?

6.2 (Medium)


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

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/crossplane/crossplane"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.9.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/crossplane/crossplane"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.10.0"
            },
            {
              "fixed": "1.10.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/crossplane/crossplane"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.11.0"
            },
            {
              "fixed": "1.11.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-27484"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20",
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-03-10T23:47:53Z",
    "nvd_published_at": "2023-03-09T21:15:00Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\n\nFuzz testing, by Ada Logics and sponsored by the CNCF, identified a [vulnerability](https://github.com/crossplane/crossplane-runtime/security/advisories/GHSA-vfvj-3m3g-m532) in the `fieldpath` package from `crossplane/crossplane-runtime` that an already highly privileged Crossplane user able to create or update Compositions could leverage to cause an out of memory panic in Crossplane.\n\n### Details\n\nCompositions allow users to specify patches inserting elements into arrays at an arbitrary index. When a Composition is selected for a Composite Resource, patches are evaluated and if a specified index is greater than the current size of the target slice, that slice\u0027s size will be increased to the specified index, which could lead to an excessive amount of memory usage and therefore the Pod being OOM-Killed. The index is already capped to the maximum value for a uint32 (4294967295) when parsed, but that is still an unnecessarily large value.\n\n### Workaround\n\nUsers can restrict write privileges on Compositions to only admin users as a workaround.",
  "id": "GHSA-v829-x6hh-cqfq",
  "modified": "2023-03-10T23:47:53Z",
  "published": "2023-03-10T23:47:53Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/crossplane/crossplane/security/advisories/GHSA-v829-x6hh-cqfq"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-27484"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/crossplane/crossplane"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Crossplane-runtime contains Improper Input Validation via Compositions"
}

CVE-2023-27484 (GCVE-0-2023-27484)

Vulnerability from cvelistv5 – Published: 2023-03-09 20:22 – Updated: 2025-02-25 14:59

Title

Unchecked fieldpath index in Composition's patches can lead to arbitrary memory allocation in crossplane

Summary

crossplane-runtime is a set of go libraries used to build Kubernetes controllers in Crossplane and its related stacks. In affected versions an already highly privileged user able to create or update Compositions can specify an arbitrarily high index in a patch's `ToFieldPath`, which could lead to excessive memory usage once such Composition is selected for a Composite resource. Compositions allow users to specify patches inserting elements into arrays at an arbitrary index. When a Composition is selected for a Composite Resource, patches are evaluated and if a specified index is greater than the current size of the target slice, Crossplane will grow that slice up to the specified index, which could lead to an excessive amount of memory usage and therefore the Pod being OOM-Killed. The index is already capped to the maximum value for a uint32 (4294967295) when parsed, but that is still an unnecessarily large value. This issue has been addressed in versions 1.11.2, 1.10.3, and 1.9.2. Users are advised to upgrade. Users unable to upgrade can restrict write privileges on Compositions to only admin users as a workaround.

Severity ?

6.2 (Medium)


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

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-20 - Improper Input Validation

Assigner

GitHub_M

References

URL

Tags

https://github.com/crossplane/crossplane/security…

x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	crossplane	crossplane	Affected: < 1.9.2 Affected: >= 1.10.0, < 1.10.3 Affected: >= 1.11.0, < 1.11.2

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JSON

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                "id": "CVE-2023-27484",
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Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-V829-X6HH-CQFQ

Summary

Details

Workaround

CVE-2023-27484 (GCVE-0-2023-27484)

Tags

Sightings

Nomenclature