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CVE-2021-31231

Estado: ModificadaMedia (5.5)—

The Alertmanager in Grafana Enterprise Metrics before 1.2.1 and Metrics Enterprise 1.2.1 has a local file disclosure vulnerability when experimental.alertmanager.enable-api is used. The HTTP basic auth password_file can be used as an attack vector to send any file content via a webhook. The alertmanager templates can be used as an attack vector to send any file content because the alertmanager can load any text file specified in the templates list.

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)

Grafana — Enterprise Metrics

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-31231",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 2.1,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/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": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-04-30T13:15:07.547",
  "references": [
    {
      "url": "https://community.grafana.com/c/security-announcements",
      "tags": [
        "Broken Link",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
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      "tags": [
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      "source": "cve@mitre.org"
    },
    {
      "url": "https://grafana.com/docs/metrics-enterprise/latest/downloads/#v113----april-27-2021",
      "tags": [
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        "Vendor Advisory"
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      "source": "cve@mitre.org"
    },
    {
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      "tags": [
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      "source": "cve@mitre.org"
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    {
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      "tags": [
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      "source": "cve@mitre.org"
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "tags": [
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    },
    {
      "url": "https://grafana.com/docs/metrics-enterprise/latest/downloads/#v121----april-27-2021",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.netapp.com/advisory/ntap-20210611-0001/",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Alertmanager in Grafana Enterprise Metrics before 1.2.1 and Metrics Enterprise 1.2.1 has a local file disclosure vulnerability when experimental.alertmanager.enable-api is used. The HTTP basic auth password_file can be used as an attack vector to send any file content via a webhook. The alertmanager templates can be used as an attack vector to send any file content because the alertmanager can load any text file specified in the templates list."
    },
    {
      "lang": "es",
      "value": "Alertmanager en Grafana Enterprise Metrics versiones anteriores a 1.2.1 y Metrics Enterprise versión1.2.1, presenta una vulnerabilidad de divulgación de archivos locales cuando es usado experimental.alertmanager.enable-api. El archivo de contraseña de autenticación básica HTTP se puede usar como un vector de ataque para enviar cualquier contenido de archivo por medio de un webhook. Las plantillas de alertmanager pueden ser usado como vector de ataque para enviar cualquier contenido de archivo porque alertmanager puede cargar cualquier archivo de texto especificado en la lista de plantillas."
    }
  ],
  "lastModified": "2026-06-17T03:51:29.300",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:grafana:enterprise_metrics:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4BB20F01-714A-4510-9DCF-531232178BB1",
              "versionEndExcluding": "1.2.1"
            },
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              "criteria": "cpe:2.3:a:grafana:enterprise_metrics:*:*:*:*:enterprise:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8504FF5A-86A0-4C01-AE56-E1BCB5AB485F",
              "versionEndExcluding": "1.2.1"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}