Vulnerability-Lookup

GHSA-GMPH-WF7J-9GCM

Vulnerability from github – Published: 2023-04-04 15:30 – Updated: 2023-04-11 21:32

Summary

Etcd-io Improper Authentication vulnerability

Details

Authentication vulnerability found in Etcd-io v.3.4.10 allows remote attackers to escalate privileges via the debug function.

This has been fixed in v.3.5.8 and was also backported to 3.4 and 3.5.

Severity

9.8 (Critical)


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

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "go.etcd.io/etcd/v3"
      },
      "versions": [
        "3.4.10"
      ]
    }
  ],
  "aliases": [
    "CVE-2021-28235"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-04-11T21:32:54Z",
    "nvd_published_at": "2023-04-04T15:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "Authentication vulnerability found in Etcd-io v.3.4.10 allows remote attackers to escalate privileges via the debug function.\n\nThis has been fixed in v.[3.5.8](https://github.com/etcd-io/etcd/blob/main/CHANGELOG/CHANGELOG-3.5.md#etcd-server) and was also backported to [3.4](https://github.com/etcd-io/etcd/pull/15655) and [3.5](https://github.com/etcd-io/etcd/pull/15653).",
  "id": "GHSA-gmph-wf7j-9gcm",
  "modified": "2023-04-11T21:32:54Z",
  "published": "2023-04-04T15:30:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-28235"
    },
    {
      "type": "WEB",
      "url": "https://github.com/etcd-io/etcd/pull/15648"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/etcd-io/etcd"
    },
    {
      "type": "WEB",
      "url": "https://github.com/lucyxss/etcd-3.4.10-test/blob/master/temp4cj.png"
    },
    {
      "type": "WEB",
      "url": "https://github.com/lucyxss/etcd-3.4.10-test/blob/master/temp4cj_2.png"
    },
    {
      "type": "WEB",
      "url": "http://etcd.com"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Etcd-io Improper Authentication vulnerability"
}

CVE-2021-28235 (GCVE-0-2021-28235)

Vulnerability from cvelistv5 – Published: 2023-04-04 00:00 – Updated: 2026-07-09 00:12

Summary

Authentication vulnerability found in Etcd-io v.3.4.10 allows remote attackers to escalate privileges via the debug function.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-02-14 17:24 UTC

CWE

Assigner

mitre mitre root

References

4 references

URL	Tags
https://github.com/etcd-io/etcd
https://github.com/lucyxss/etcd-3.4.10-test/blob/…
https://github.com/lucyxss/etcd-3.4.10-test/blob/…
https://github.com/etcd-io/etcd/pull/15648

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-07-09T00:12:52.777Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/etcd-io/etcd"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/lucyxss/etcd-3.4.10-test/blob/master/temp4cj.png"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/lucyxss/etcd-3.4.10-test/blob/master/temp4cj_2.png"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/etcd-io/etcd/pull/15648"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-28235",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-14T17:24:41.838121Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-02-18T17:09:40.620Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Authentication vulnerability found in Etcd-io v.3.4.10 allows remote attackers to escalate privileges via the debug function."
        }
      ],
      "problemTypes": [
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          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-05T00:17:20.379Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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      },
      "references": [
        {
          "url": "https://github.com/etcd-io/etcd"
        },
        {
          "url": "https://github.com/lucyxss/etcd-3.4.10-test/blob/master/temp4cj.png"
        },
        {
          "url": "https://github.com/lucyxss/etcd-3.4.10-test/blob/master/temp4cj_2.png"
        },
        {
          "url": "https://github.com/etcd-io/etcd/pull/15648"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
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    "datePublished": "2023-04-04T00:00:00.000Z",
    "dateReserved": "2021-03-12T00:00:00.000Z",
    "dateUpdated": "2026-07-09T00:12:52.777Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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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.

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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GHSA-GMPH-WF7J-9GCM

CVE-2021-28235 (GCVE-0-2021-28235)

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