CVE-2020-8919 (GCVE-0-2020-8919)

Vulnerability from cvelistv5 – Published: 2020-12-10 10:15 – Updated: 2024-08-04 10:12
VLAI
Title
Information leakage in Gerrit
Summary
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.
CWE
Impacted products
Vendor Product Version
Gerrit Gerrit Affected: stable , < 2.15.21 (custom)
Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T10:12:10.971Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://gerrit.googlesource.com/gerrit/+/0532fb876cb86bc091a91f78e6f28fff9e39ca65"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.gerritcodereview.com/2.15.html#21521"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.gerritcodereview.com/2.16.html#21625"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.gerritcodereview.com/3.0.html#3014"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.gerritcodereview.com/3.1.html#3110"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.gerritcodereview.com/3.2.html#325"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Gerrit",
          "vendor": "Gerrit",
          "versions": [
            {
              "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"
                }
              ],
              "lessThan": "2.15.21",
              "status": "affected",
              "version": "stable",
              "versionType": "custom"
            }
          ]
        }
      ],
      "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\u0027s personal account data as well as sub-trees with restricted access."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.5,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-285",
              "description": "CWE-285 Improper Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-12-10T10:15:22.000Z",
        "orgId": "14ed7db2-1595-443d-9d34-6215bf890778",
        "shortName": "Google"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://gerrit.googlesource.com/gerrit/+/0532fb876cb86bc091a91f78e6f28fff9e39ca65"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.gerritcodereview.com/2.15.html#21521"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.gerritcodereview.com/2.16.html#21625"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.gerritcodereview.com/3.0.html#3014"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.gerritcodereview.com/3.1.html#3110"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.gerritcodereview.com/3.2.html#325"
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      },
      "title": "Information leakage in Gerrit",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security@google.com",
          "ID": "CVE-2020-8919",
          "STATE": "PUBLIC",
          "TITLE": "Information leakage in Gerrit"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Gerrit",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_name": "stable",
                            "version_value": "2.15.21"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_name": "stable",
                            "version_value": "2.16.25"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_name": "stable",
                            "version_value": "3.0.15"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_name": "stable",
                            "version_value": "3.1.10"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_name": "stable",
                            "version_value": "3.2.5"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Gerrit"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "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\u0027s personal account data as well as sub-trees with restricted access."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.5,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-285 Improper Authorization"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://gerrit.googlesource.com/gerrit/+/0532fb876cb86bc091a91f78e6f28fff9e39ca65",
              "refsource": "CONFIRM",
              "url": "https://gerrit.googlesource.com/gerrit/+/0532fb876cb86bc091a91f78e6f28fff9e39ca65"
            },
            {
              "name": "https://www.gerritcodereview.com/2.15.html#21521",
              "refsource": "CONFIRM",
              "url": "https://www.gerritcodereview.com/2.15.html#21521"
            },
            {
              "name": "https://www.gerritcodereview.com/2.16.html#21625",
              "refsource": "CONFIRM",
              "url": "https://www.gerritcodereview.com/2.16.html#21625"
            },
            {
              "name": "https://www.gerritcodereview.com/3.0.html#3014",
              "refsource": "CONFIRM",
              "url": "https://www.gerritcodereview.com/3.0.html#3014"
            },
            {
              "name": "https://www.gerritcodereview.com/3.1.html#3110",
              "refsource": "CONFIRM",
              "url": "https://www.gerritcodereview.com/3.1.html#3110"
            },
            {
              "name": "https://www.gerritcodereview.com/3.2.html#325",
              "refsource": "CONFIRM",
              "url": "https://www.gerritcodereview.com/3.2.html#325"
            }
          ]
        },
        "source": {
          "discovery": "INTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778",
    "assignerShortName": "Google",
    "cveId": "CVE-2020-8919",
    "datePublished": "2020-12-10T10:15:22.000Z",
    "dateReserved": "2020-02-12T00:00:00.000Z",
    "dateUpdated": "2024-08-04T10:12:10.971Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2020-8919",
      "date": "2026-10-03",
      "epss": "0.00321",
      "percentile": "0.22859"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "product": "Gerrit",
                "vendor": "Gerrit",
                "versions": [
                  {
                    "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"
                      }
                    ],
                    "lessThan": "2.15.21",
                    "status": "affected",
                    "version": "stable",
                    "versionType": "custom"
                  }
                ]
              }
            ],
            "source": "cve-coordination@google.com"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:google:gerrit:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "85C99CB5-458B-4A7F-AA2D-B247886C7995",
                    "versionEndExcluding": "2.15.21",
                    "versionStartIncluding": "2.15.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:google:gerrit:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "1C858DDA-9464-4FEA-A42F-F7D5B83AA2CE",
                    "versionEndExcluding": "2.16.25",
                    "versionStartIncluding": "2.16.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:google:gerrit:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "B16ADF17-9AC1-40F6-AB4B-0C0C2BDC5632",
                    "versionEndExcluding": "3.0.15",
                    "versionStartIncluding": "3.0.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:google:gerrit:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E9463501-D097-4BBE-BBC5-78BE8694B4C1",
                    "versionEndExcluding": "3.1.10",
                    "versionStartIncluding": "3.1.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:google:gerrit:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "109C49F0-F690-4990-9E07-F3BBB483DDCA",
                    "versionEndExcluding": "3.2.5",
                    "versionStartIncluding": "3.2.0",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "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\u0027s personal account data as well as sub-trees with restricted access."
          },
          {
            "lang": "es",
            "value": "Se presenta una vulnerabilidad de filtraci\u00f3n de informaci\u00f3n en Gerrit versiones anteriores a 2.15.21, 2.16.25, 3.0.15, 3.1.10, 3.2.5, donde una falta de comprobaci\u00f3n 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 dem\u00e1s usuarios, as\u00ed como los sub\u00e1rboles con acceso restringido."
          }
        ],
        "id": "CVE-2020-8919",
        "lastModified": "2026-06-17T03:27:10.887",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "LOW",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "ADJACENT_NETWORK",
                "authentication": "SINGLE",
                "availabilityImpact": "NONE",
                "baseScore": 2.7,
                "confidentialityImpact": "PARTIAL",
                "integrityImpact": "NONE",
                "vectorString": "AV:A/AC:L/Au:S/C:P/I:N/A:N",
                "version": "2.0"
              },
              "exploitabilityScore": 5.1,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "ADJACENT_NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 3.5,
                "baseSeverity": "LOW",
                "confidentialityImpact": "LOW",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 2.1,
              "impactScore": 1.4,
              "source": "cve-coordination@google.com",
              "type": "Secondary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "ADJACENT_NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 3.5,
                "baseSeverity": "LOW",
                "confidentialityImpact": "LOW",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 2.1,
              "impactScore": 1.4,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2020-12-10T11:15:11.450",
        "references": [
          {
            "source": "cve-coordination@google.com",
            "tags": [
              "Issue Tracking",
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://gerrit.googlesource.com/gerrit/+/0532fb876cb86bc091a91f78e6f28fff9e39ca65"
          },
          {
            "source": "cve-coordination@google.com",
            "tags": [
              "Release Notes",
              "Vendor Advisory"
            ],
            "url": "https://www.gerritcodereview.com/2.15.html#21521"
          },
          {
            "source": "cve-coordination@google.com",
            "tags": [
              "Release Notes",
              "Vendor Advisory"
            ],
            "url": "https://www.gerritcodereview.com/2.16.html#21625"
          },
          {
            "source": "cve-coordination@google.com",
            "tags": [
              "Release Notes",
              "Vendor Advisory"
            ],
            "url": "https://www.gerritcodereview.com/3.0.html#3014"
          },
          {
            "source": "cve-coordination@google.com",
            "tags": [
              "Release Notes",
              "Vendor Advisory"
            ],
            "url": "https://www.gerritcodereview.com/3.1.html#3110"
          },
          {
            "source": "cve-coordination@google.com",
            "tags": [
              "Release Notes",
              "Vendor Advisory"
            ],
            "url": "https://www.gerritcodereview.com/3.2.html#325"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Issue Tracking",
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://gerrit.googlesource.com/gerrit/+/0532fb876cb86bc091a91f78e6f28fff9e39ca65"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Release Notes",
              "Vendor Advisory"
            ],
            "url": "https://www.gerritcodereview.com/2.15.html#21521"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Release Notes",
              "Vendor Advisory"
            ],
            "url": "https://www.gerritcodereview.com/2.16.html#21625"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Release Notes",
              "Vendor Advisory"
            ],
            "url": "https://www.gerritcodereview.com/3.0.html#3014"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Release Notes",
              "Vendor Advisory"
            ],
            "url": "https://www.gerritcodereview.com/3.1.html#3110"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Release Notes",
              "Vendor Advisory"
            ],
            "url": "https://www.gerritcodereview.com/3.2.html#325"
          }
        ],
        "sourceIdentifier": "cve-coordination@google.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-285"
              }
            ],
            "source": "cve-coordination@google.com",
            "type": "Secondary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-863"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Loading…

Loading…

Loading…

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


Loading…