fkie_nvd - fkie_cve-2021-47664

FKIE_CVE-2021-47664

Vulnerability from fkie_nvd - Published: 2025-04-24 10:15 - Updated: 2025-04-29 13:52

Severity ?

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Summary

Due to improper authentication mechanism an unauthenticated remote attacker can enumerate valid usernames.

References

	URL	Tags
	info@cert.vde.com	https://www.sciencedirect.com/science/article/pii/S2351978921001657

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Due to improper authentication mechanism an unauthenticated remote attacker can enumerate valid usernames."
    },
    {
      "lang": "es",
      "value": "Debido a un mecanismo de autenticaci\u00f3n inadecuado, un atacante remoto no autenticado puede enumerar nombres de usuario v\u00e1lidos."
    }
  ],
  "id": "CVE-2021-47664",
  "lastModified": "2025-04-29T13:52:47.470",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "info@cert.vde.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-04-24T10:15:16.880",
  "references": [
    {
      "source": "info@cert.vde.com",
      "url": "https://www.sciencedirect.com/science/article/pii/S2351978921001657"
    }
  ],
  "sourceIdentifier": "info@cert.vde.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-203"
        }
      ],
      "source": "info@cert.vde.com",
      "type": "Secondary"
    }
  ]
}

CVE-2021-47664 (GCVE-0-2021-47664)

Vulnerability from cvelistv5 – Published: 2025-04-24 09:25 – Updated: 2025-04-24 15:22

Summary

Due to improper authentication mechanism an unauthenticated remote attacker can enumerate valid usernames.

Severity ?

5.3 (Medium)


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

CWE

CWE-203 - Observable Discrepancy

Assigner

CERTVDE

References

URL

Tags

https://www.sciencedirect.com/science/article/pii…

Impacted products

	Vendor	Product	Version
	Franka Robotics	Franka Emika Robot	Affected: 0.0.0 , ≤ 4.0.3 (semver)

Credits

Siegfried Hollerer by TU Wien

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-47664",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-24T13:46:45.931265Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-24T15:22:17.000Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Franka Emika Robot",
          "vendor": "Franka Robotics",
          "versions": [
            {
              "lessThanOrEqual": "4.0.3",
              "status": "affected",
              "version": "0.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "user": "00000000-0000-4000-9000-000000000000",
          "value": "Siegfried Hollerer by TU Wien"
        }
      ],
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          ],
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        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
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      "problemTypes": [
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          "descriptions": [
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              "description": "CWE-203: Observable Discrepancy",
              "lang": "en",
              "type": "CWE"
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      "providerMetadata": {
        "dateUpdated": "2025-04-24T09:25:39.181Z",
        "orgId": "270ccfa6-a436-4e77-922e-914ec3a9685c",
        "shortName": "CERTVDE"
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      "references": [
        {
          "url": "https://www.sciencedirect.com/science/article/pii/S2351978921001657"
        }
      ],
      "source": {
        "defect": [
          "CERT@VDE#641761"
        ],
        "discovery": "UNKNOWN"
      },
      "title": "Enumeration of valid user names",
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        "engine": "Vulnogram 0.1.0-dev"
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "270ccfa6-a436-4e77-922e-914ec3a9685c",
    "assignerShortName": "CERTVDE",
    "cveId": "CVE-2021-47664",
    "datePublished": "2025-04-24T09:25:39.181Z",
    "dateReserved": "2025-03-17T08:25:16.736Z",
    "dateUpdated": "2025-04-24T15:22:17.000Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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

FKIE_CVE-2021-47664

CVE-2021-47664 (GCVE-0-2021-47664)

Tags

Sightings

Nomenclature