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CVE-2021-3169

Estado: ModificadaCrítica (9.8)—

An issue in Jumpserver before 2.6.2, before 2.5.4, before 2.4.5 allows attackers to create a connection token through an API which does not have access control and use it to access sensitive assets.

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)

Jumpserver — Jumpserver

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-3169",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 10,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/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": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-07-23T21:15:07.437",
  "references": [
    {
      "url": "https://blog.fit2cloud.com/?p=1764",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://mp.weixin.qq.com/s/5tgcaIrnDnGP-LvWPw9YCg",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://s.tencent.com/research/bsafe/1228.html",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://blog.fit2cloud.com/?p=1764",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://mp.weixin.qq.com/s/5tgcaIrnDnGP-LvWPw9YCg",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://s.tencent.com/research/bsafe/1228.html",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-74"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue in Jumpserver before 2.6.2, before 2.5.4, before 2.4.5 allows attackers to create a connection token through an API which does not have access control and use it to access sensitive assets."
    },
    {
      "lang": "es",
      "value": "Un problema en Jumpserver versiones 2.6.2 e inferiores, permite a atacantes crear un token de conexión mediante una API que no presenta control de acceso y usarlo para acceder a activos confidenciales"
    }
  ],
  "lastModified": "2026-06-17T04:04:47.060",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:jumpserver:jumpserver:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "687DD45D-6DA6-48F6-BB28-332E257F0816",
              "versionEndExcluding": "2.4.5",
              "versionStartIncluding": "2.4.0"
            },
            {
              "criteria": "cpe:2.3:a:jumpserver:jumpserver:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "FC90E3CD-C460-48C9-B8A0-AE178BF1ADDE",
              "versionEndExcluding": "2.5.4",
              "versionStartIncluding": "2.5.0"
            },
            {
              "criteria": "cpe:2.3:a:jumpserver:jumpserver:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BA611799-E428-4FEA-83A2-D447659BA1D2",
              "versionEndExcluding": "2.6.2",
              "versionStartIncluding": "2.6.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}