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CVE-2021-4007

Estado: ModificadaAlta (7.8)—

Rapid7 Insight Agent, versions 3.0.1 to 3.1.2.34, suffer from a local privilege escalation due to an uncontrolled DLL search path. Specifically, when Insight Agent versions 3.0.1 to 3.1.2.34 start, the Python interpreter attempts to load python3.dll at "C:\DLLs\python3.dll," which normally is writable by locally authenticated users. Because of this, a malicious local user could use Insight Agent's startup conditions to elevate to SYSTEM privileges. This issue was fixed in Rapid7 Insight Agent 3.1.2.35. This vulnerability is a regression of CVE-2019-5629.

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)

Rapid7 — Insight Agent

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-4007",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.2,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cve@rapid7.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@rapid7.com",
      "affectedData": [
        {
          "vendor": "Rapid7",
          "product": "Insight Agent",
          "versions": [
            {
              "status": "affected",
              "version": "3.0.1",
              "lessThan": "3.0.1*",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "3.1.2.34",
              "versionType": "custom",
              "lessThanOrEqual": "3.1.2.34"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-12-14T15:15:07.373",
  "references": [
    {
      "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=2019-5629",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "cve@rapid7.com"
    },
    {
      "url": "https://docs.rapid7.com/release-notes/insightagent/20211210/",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "source": "cve@rapid7.com"
    },
    {
      "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=2019-5629",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://docs.rapid7.com/release-notes/insightagent/20211210/",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cve@rapid7.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-427"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-427"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Rapid7 Insight Agent, versions 3.0.1 to 3.1.2.34, suffer from a local privilege escalation due to an uncontrolled DLL search path. Specifically, when Insight Agent versions 3.0.1 to 3.1.2.34 start, the Python interpreter attempts to load python3.dll at \"C:\\DLLs\\python3.dll,\" which normally is writable by locally authenticated users. Because of this, a malicious local user could use Insight Agent's startup conditions to elevate to SYSTEM privileges. This issue was fixed in Rapid7 Insight Agent 3.1.2.35. This vulnerability is a regression of CVE-2019-5629."
    },
    {
      "lang": "es",
      "value": "Rapid7 Insight Agent, versiones 3.0.1 a 3.1.2.34, sufre una escalada de privilegios local debido a una ruta de búsqueda de DLL no controlada. En concreto, cuando se inician las versiones 3.0.1 a 3.1.2.34 del Agente Insight, el intérprete de Python intenta cargar python3.dll en \"C:\\DLLs\\python3.dll\", que normalmente es escribible por los usuarios autenticados localmente. Debido a esto, un usuario local malicioso podría usar las condiciones de inicio del Agente Insight para elevarse a privilegios SYSTEM. Este problema ha sido corregido en Rapid7 Insight Agent versión 3.1.2.35. Esta vulnerabilidad es una regresión de CVE-2019-5629"
    }
  ],
  "lastModified": "2026-06-17T04:18:53.310",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:rapid7:insight_agent:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3572C5C5-7D73-4780-A92E-88AC1238F9C9",
              "versionEndExcluding": "3.1.2.35",
              "versionStartIncluding": "3.0.1"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@rapid7.com"
}