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CVE-2021-27900

Estado: ModificadaAlta (8.1)—

The Proofpoint Insider Threat Management Server (formerly ObserveIT Server) is missing an authorization check on several pages in the Web Console. This enables a view-only user to change any configuration setting and delete any registered agents. All versions before 7.11.1 are affected.

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)

Proofpoint — Insider Threat Management

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-27900",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:P",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 4.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.1,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-04-06T22:15:12.890",
  "references": [
    {
      "url": "https://www.proofpoint.com/us/security/security-advisories/pfpt-sa-2021-0005",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.proofpoint.com/us/security/security-advisories/pfpt-sa-2021-0005",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Proofpoint Insider Threat Management Server (formerly ObserveIT Server) is missing an authorization check on several pages in the Web Console. This enables a view-only user to change any configuration setting and delete any registered agents. All versions before 7.11.1 are affected."
    },
    {
      "lang": "es",
      "value": "El Servidor Proofpoint Insider Threat Management (anteriormente ObserveIT Server) presenta una falta de verificación de autorización en varias páginas de la consola web. Esto permite que un usuario de solo lectura cambie cualquier ajuste de configuración y elimine cualquier agente registrado. Todas las versiones anteriores a 7.11.1 están afectadas"
    }
  ],
  "lastModified": "2026-06-17T03:45:34.590",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:proofpoint:insider_threat_management:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "49735308-48A4-4ED9-A146-B0EEA9261271",
              "versionEndExcluding": "7.9.3",
              "versionStartIncluding": "7.9.0"
            },
            {
              "criteria": "cpe:2.3:a:proofpoint:insider_threat_management:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8BB71780-DB7A-499B-B926-7991841A7A17",
              "versionEndExcluding": "7.10.3",
              "versionStartIncluding": "7.10.0"
            },
            {
              "criteria": "cpe:2.3:a:proofpoint:insider_threat_management:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "576B99C8-93B5-43E5-BEFD-5225FB5FA2EE",
              "versionEndExcluding": "7.11.1",
              "versionStartIncluding": "7.11.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}