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CVE-2019-5464

Estado: ModificadaCrítica (9.8)—

Se detectó un problema de fallo de protección de un reenlace de DNS en GitLab CE/EE versiones 10.2 y posteriores, en el archivo "url_blocker.rb" que podría resultar en vulnerabilidad de tipo SSRF donde la biblioteca es utilizada.

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)

Gitlab — Gitlab

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2019-5464",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "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": "support@hackerone.com",
      "affectedData": [
        {
          "vendor": "GitLab",
          "product": "GitLab CE/EE",
          "versions": [
            {
              "status": "affected",
              "version": "Affects GitLab CE/EE 10.2 and later"
            },
            {
              "status": "affected",
              "version": "Fixed in 12.1.2 in 12.0.4 and in 11.11.6"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-01-28T03:15:10.903",
  "references": [
    {
      "url": "https://about.gitlab.com/releases/2019/07/29/security-release-gitlab-12-dot-1-dot-2-released/",
      "tags": [
        "Patch",
        "Release Notes",
        "Vendor Advisory"
      ],
      "source": "support@hackerone.com"
    },
    {
      "url": "https://gitlab.com/gitlab-org/gitlab-ce/issues/63959",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "source": "support@hackerone.com"
    },
    {
      "url": "https://hackerone.com/reports/632101",
      "tags": [
        "Permissions Required"
      ],
      "source": "support@hackerone.com"
    },
    {
      "url": "https://about.gitlab.com/releases/2019/07/29/security-release-gitlab-12-dot-1-dot-2-released/",
      "tags": [
        "Patch",
        "Release Notes",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://gitlab.com/gitlab-org/gitlab-ce/issues/63959",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://hackerone.com/reports/632101",
      "tags": [
        "Permissions Required"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "support@hackerone.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flawed DNS rebinding protection issue was discovered in GitLab CE/EE 10.2 and later in the `url_blocker.rb` which could result in SSRF where the library is utilized."
    },
    {
      "lang": "es",
      "value": "Se detectó un problema de fallo de protección de un reenlace de DNS en GitLab CE/EE versiones 10.2 y posteriores, en el archivo \"url_blocker.rb\" que podría resultar en vulnerabilidad de tipo SSRF donde la biblioteca es utilizada."
    }
  ],
  "lastModified": "2026-06-17T02:37:44.110",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "45C55859-5F6B-4FD7-9DF5-431DF4D9454B",
              "versionEndExcluding": "11.11.7",
              "versionStartIncluding": "10.2.0"
            },
            {
              "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "265380D4-A82B-4A5A-9F41-5E1311515AB8",
              "versionEndExcluding": "11.11.7",
              "versionStartIncluding": "10.2.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "support@hackerone.com"
}