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CVE-2020-8919

Estado: ModificadaBaja (3.5)—

An information leak vulnerability exists in Gerrit versions prior to 2.15.21, 2.16.25, 3.0.15, 3.1.10, 3.2.5 where a missing access check on the branch REST API allows an attacker with only the default set of priviledges to read all other user's personal account data as well as sub-trees with restricted access.

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)

Google — Gerrit

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-8919",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 2.7,
          "accessVector": "ADJACENT_NETWORK",
          "vectorString": "AV:A/AC:L/Au:S/C:P/I:N/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 5.1,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cve-coordination@google.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 3.5,
          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "LOW",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.1
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        "type": "Primary",
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          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.1
      }
    ]
  },
  "affected": [
    {
      "source": "cve-coordination@google.com",
      "affectedData": [
        {
          "vendor": "Gerrit",
          "product": "Gerrit",
          "versions": [
            {
              "status": "affected",
              "changes": [
                {
                  "at": "2.16.25",
                  "status": "unaffected"
                },
                {
                  "at": "3.0.15",
                  "status": "unaffected"
                },
                {
                  "at": "3.1.10",
                  "status": "unaffected"
                },
                {
                  "at": "3.2.5",
                  "status": "unaffected"
                }
              ],
              "version": "stable",
              "lessThan": "2.15.21",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-12-10T11:15:11.450",
  "references": [
    {
      "url": "https://gerrit.googlesource.com/gerrit/+/0532fb876cb86bc091a91f78e6f28fff9e39ca65",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Vendor Advisory"
      ],
      "source": "cve-coordination@google.com"
    },
    {
      "url": "https://www.gerritcodereview.com/2.15.html#21521",
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        "Vendor Advisory"
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    },
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      "url": "https://www.gerritcodereview.com/2.16.html#21625",
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        "Vendor Advisory"
      ],
      "source": "cve-coordination@google.com"
    },
    {
      "url": "https://www.gerritcodereview.com/3.0.html#3014",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "source": "cve-coordination@google.com"
    },
    {
      "url": "https://www.gerritcodereview.com/3.1.html#3110",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "source": "cve-coordination@google.com"
    },
    {
      "url": "https://www.gerritcodereview.com/3.2.html#325",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "source": "cve-coordination@google.com"
    },
    {
      "url": "https://gerrit.googlesource.com/gerrit/+/0532fb876cb86bc091a91f78e6f28fff9e39ca65",
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        "Issue Tracking",
        "Patch",
        "Vendor Advisory"
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    },
    {
      "url": "https://www.gerritcodereview.com/3.0.html#3014",
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        "Release Notes",
        "Vendor Advisory"
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    },
    {
      "url": "https://www.gerritcodereview.com/3.1.html#3110",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
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    },
    {
      "url": "https://www.gerritcodereview.com/3.2.html#325",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cve-coordination@google.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-285"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An information leak vulnerability exists in Gerrit versions prior to 2.15.21, 2.16.25, 3.0.15, 3.1.10, 3.2.5 where a missing access check on the branch REST API allows an attacker with only the default set of priviledges to read all other user's personal account data as well as sub-trees with restricted access."
    },
    {
      "lang": "es",
      "value": "Se presenta una vulnerabilidad de filtración de información en Gerrit versiones anteriores a 2.15.21, 2.16.25, 3.0.15, 3.1.10, 3.2.5, donde una falta de comprobación de acceso en la API REST de la rama permite a un atacante con solo el ajuste predeterminado de privilegios leer todos los datos de la cuenta personal de los demás usuarios, así como los subárboles con acceso restringido."
    }
  ],
  "lastModified": "2026-06-17T03:27:10.887",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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              "versionEndExcluding": "2.15.21",
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            },
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}