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CVE-2021-42763

Estado: ModificadaAlta (7.5)—

Couchbase Server before 6.6.3 and 7.x before 7.0.2 stores Sensitive Information in Cleartext. The issue occurs when the cluster manager forwards a HTTP request from the pluggable UI (query workbench etc) to the specific service. In the backtrace, the Basic Auth Header included in the HTTP request, has the "@" user credentials of the node processing the UI request.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Couchbase — Couchbase Server

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-42763",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-11-02T12:15:07.837",
  "references": [
    {
      "url": "https://docs.couchbase.com/server/current/release-notes/relnotes.html",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.couchbase.com/alerts",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://docs.couchbase.com/server/current/release-notes/relnotes.html",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.couchbase.com/alerts",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-312"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Couchbase Server before 6.6.3 and 7.x before 7.0.2 stores Sensitive Information in Cleartext. The issue occurs when the cluster manager forwards a HTTP request from the pluggable UI (query workbench etc) to the specific service. In the backtrace, the Basic Auth Header included in the HTTP request, has the \"@\" user credentials of the node processing the UI request."
    },
    {
      "lang": "es",
      "value": "Couchbase Server versiones anteriores a 6.6.3 y 7.x anteriores a 7.0.2, almacena información confidencial en texto sin cifrar. El problema se produce cuando el administrador de clústeres reenvía una petición HTTP desde la UI pluggable (query workbench, etc.) al servicio específico. En el backtrace, el Basic Auth Header incluido en la petición HTTP, presenta las credenciales de usuario \"@\" del nodo que procesa la petición de UI"
    }
  ],
  "lastModified": "2026-06-17T04:10:06.113",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:couchbase:couchbase_server:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "822D5705-403C-42B6-A7F4-F1B96DCDA2F6",
              "versionEndExcluding": "4.6.0"
            },
            {
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              "vulnerable": true,
              "matchCriteriaId": "3178055C-9670-4D79-932A-07F139F5F922",
              "versionEndExcluding": "6.1.0",
              "versionStartIncluding": "5.0.0"
            },
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              "matchCriteriaId": "D7C23D79-2B15-45A5-B5FB-DB0354A108D4",
              "versionEndIncluding": "6.6.2",
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            },
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            },
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              "matchCriteriaId": "DDBFEB5B-7BF8-456B-84A2-8A8656470F6A"
            }
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          "operator": "OR"
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  "sourceIdentifier": "cve@mitre.org"
}